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When he was young he was orphaned and was left alone. He made money and was going to get married but his “girlfriend” took all his money and ran away with someone else.  This unfortunately happened to him seven times.He was left debt and was being harassed by the people who he was in debt to. But an old man who was walking by took pity on him. The old man payed off Zenitsu’s debt and started training him to be a demon slayer. Zenitsu who was a coward often ran away but his sensei always caught him and brought him back. Although all the training Zenitsu indured he is only able to perform the 1st form of thunder breathing. His sensei’s older disciple, Kaigaku, hated him because he was a crybaby and a coward and Zenitsu hated him just as much ,but Zenitsu couldn’t help but feel respect for Kaigaku, he was hard working, driven, and strong.

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The final selection is a test to see if you are ready to become a demon slayer. You are supposed to survive 7 days on a demon infested mountain. If you pass you will be asked to choose what material to make you Nichirin Sword from. It will take 10 to 15 days to finish being made. The blade will change color depending on its. I will name the colors for the blades from weakest to strongest: Pink, Blue, Gray Indigo, Green, Yellow, Gray, Purple, Black, and Red. Zenitsu got a yellow blade. Fun fact: The strongest demon slayer got a black blade that he could change to red whenever he wanted.

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Tanjiro is also a demon slayer. He was also in the same final selection as Zenitsu. He has a good sense of smell and is very brave. He is younger than Zenitsu by one year ,but is much more mature. His sensei is Sakonji Urokodaki a former hashira.

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Inosuke is very loud and annoying. He is one of the only demon slayers that uses two blades. He made his breathing style ,but it is basically a weaker version of wind breathing. He has a strong sense of touch.

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Kanao uses flower breathing which is a variation of water breathing. She met Zenitsu, Tanjiro, and Inosuke at the end of the final selection. Her sensei is Shinobu Kocho who is a current hashira

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His first ability is superhuman hearing. He can hear in a persons voice to detect whether a demon or not. His second ability is thunder breathing. Thunder breathing relies heavily on quick movements. Thunder breathing is a type of concentrated breathing. When using this your supposed to feel every blood vessel in your legs to move at extremely fast speeds.

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Nezuko is Tanjiro’s sister. She is also a demon. Her blood demon art is burning blood which turns her blood into fire. Her blood hurts demons but heals humans

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WARNING: HEAVY DEMON SLAYER MANGA SPOILERS BELOW

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Height: 1645 cm 54 Affiliation: Demon Slayer Corps Occupation: Demon Slayer Zenitsu Agatsuma is one of the main protagonists of Demon Slayer: Kimetsu no Yaiba and along with Inosuke Hashibirahttps://anilist.co/character/129130/InosukeHashibira a traveling companion of Tanjiro Kamadohttps://anilist.co/character/126071/TanjirouKamado and Nezuko Kamado. He is also a Demon Slayer in the Demon Slayer Corps.

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Zenitsu Agatsuma's anime & manga roles. __Height:__ 164,5 cm (5'4") __Affiliation:__ Demon Slayer Corps __Occupation:__ Demon Slayer Zenitsu Agatsuma is one of the main protagonists of Demon Slayer: Kimetsu no Yaiba and along with [Inosuke Hashibira](https://anilist.co/character/129130/Inosuke-Hashibira), a traveling companion of [Tanjiro Kamado](https://anilist.co/character/126071/Tanjirou-Kamado) and Nezuko Kamado.

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There isn't a single anime convention without a colorful crowd of cosplayers spread throughout, yet there's always something new to discover at every con. Here's what this year's Melbourne MadFest had to offer!

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Read more information about the character Zenitsu Agatsuma from Kimetsu no Yaiba? At MyAnimeList, you can find out about their voice actors, animeography, pictures and much more! MyAnimeList is the largest online anime and manga database in the world! Join the online community, create your anime and manga list, read reviews, explore the forums, follow news, and so much more!

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Zenitsu Agatsuma

Voiced by: Hiro Shimono (JP), Aleks Le (EN), Jose Luis Piedra (Latin American Spanish), Xavier Castañer (European Spanish), Mosè Singh (Italian)
Live actor: Keisuke Ueda (Stage Play)

'I've... been protecting it... because you... said that... this thing is more important to you... than your own life..."

Another young member of the Demon Slayer Corps who meets and travels with Tanjiro and Nezuko. Despite being cowardly and insecure, he still tries his best when push comes to shove. He fights better in his sleep than awake.

Accidental Misnaming: This happens to him after Nezuko starts talking again.

Nezuko: (to Zenitsu) "Welcome back, Inosuke."

Adaptation Expansion:

The anime adds more at the end of the group's first stay at the Butterfly Estate. In Zenitsu's case, the servant girls scold and advice him to fix his behavior around women, which could be the beginning of Zenitsu's eventual focus on Nezuko instead of random girls, which in the manga happened mostly without warning.

The video game by CC2, Demon Slayer: Kimetsu no Yaiba - The Hinokami Chronicles, adds a new variation to Zenitsu's usage of Thunder Clap and Flash as one of his basic attacks called Kiwami, it simply is a more standard Iaijutsu attack, where Zenitsu just quickly unsheathes his blade to attack and sheathes it back before initiating the proper First Form.

An Aesop: Be happy with what you finally got after being rescued from living a harsh childhood, that's Zenitsu's summarizing how his former colleague Kaigaku went through the dark path despite both of them coming from the same walk of life as former destitute orphans. Zenitsu calls it the box of happiness, people like Kaigaku must learn how to prevent the stream of goodwill from leaking through the box lest they completely ignore all good things that actually happened in their lives, erroneously coming to believe nothing good ever happened to them; that became the main difference between Zenitsu and Kaigaku, the former stopped the leaking from his box after their master Jigoro gave them a decent life and mentoring in demon slaying, the latter was never satisfied, for him Jigoro was obligated to only see one of his students as being worthy, himself, otherwise Jigoro was worthless in Kaigaku's eyes. Zenitsu ends up being the one who kills Kaigaku, avenging the fact Kaigaku's betrayal in becoming a demon led to their master commiting seppuku to atone for his disciple's betrayal.

Aesop Amnesia: Much later in the series, by the Infinity Castle arc, Zenitsu has mostly grown to be a heroic demon slayer, determined to do his part without cowering into fear or self-doubt, but for the sake of humor he will snap back, for a brief moment, to his early crying tantrums when he is in pain or scared of something.

All of the Other Reindeer: During his childhood as a homeless orphan who just tagged along equally destitute children like him, they didn't like Zenitsu's apparent coward nature and crybaby behavior, he was often abandoned by other kids who labeled him as completely worthless, however, as a teenager Zenitsu was taken in by a elderly sword master who paved the way for Zenitsu to come out of his shell, slowly but surely growing into a great demon slayer.

Asian Buck Teeth: Used for caricature comedic effect; both Inosuke and Kyojuro, saw Zenitsu having quite the buck teeth during their dream prison under Enmu's power; Zenitsu's actual normal appearance doesn't have that pronounced buck, but Gotouge says in a extra that Zenitsu does have buck teeth, it just isn't visible.

Badass Baritone: His Japanese voice acting performance, where Zenitsu talking through his sleep trance only has Hiro Shimono drop all nervousness from his usual Zenitsu voice, sounding just calm as a result. By contrast, the English performance in the Mugen Train movie has Aleks Le making his voice sound much deeper, as if trying to hammer the point harder that Zenitsu in his trance is a tough demon slayer.

Berserk Button: Don't even hint that you're hiding women from him, or are in contact with women while he isn't. Either you're a bachelor like him, or you're scum in his eyes.

Beware the Silly Ones: At first glance, Zenitsu appears to be an easily scared crybaby who overreacts to everything and throws tantrums, therefore making it seem like he isn't much of a threat ... until you learn that he's capable of using Thunder Breathing and could therefore could be a powerful fighter if he didn't hold himself back, as the Tongue Demon, the Older Brother Spider Demon, and Kaigaku can attest.

Blank White Eyes: Under intense stress to fully charge his Thunderclap Flash: Six-Fold, Zenitsu was portrayed with fully blanked out eyes, for the first time he showed the technique off. His eyes are drawn fully white later to show his imposing figure against Kaigaku, in moments Zenitsu gains the upper hand in their fight.

Blood from the Mouth: Whilst fighting the Older Brother Spider Demon, Zenitsu was poisoned and went through great stress to prepare his Thunder Breathing technique to the point he vomited some blood in the middle of his struggle; way later in the series during a comedic extra story Zenitsu vomits blood in pure excitement, as he sees Nezuko wearing a swimsuit, comically dying in the process, it's just a fun extra page though so obviously Zenitsu does not actually die for real.

Body Horror: In his bout against one of the spider family demons Zenitsu gets inflicted with a demonic art meant to mutate his body into a demonic spider creature, Zenitsu's arm begins to mutate but in desperation he finds strength to defeat the demon, he then gets rescued and put under intense care to heal his arm which by then had shrunk, starting to mutate into spider claws, in the aftermath however Zenitsu is fully healed.

Brilliant, but Lazy: Turns out to be a faster learner than Tanjiro, but only with the incentive of getting to hang out with pretty girls. Not to mention he invents a new Technique for Thunder Breathing.

Broken Pedestal: His former superior Kaigaku becoming a demon really, really makes him lose all admiration for him.

Butt-Monkey: Due his cowardly and negative forefront personality Zenitsu tends to fall in embarrassing situations due being the first to complain about the current situation he or the group find themselves in, the team going undercover in a Red Light District shows Zenitsu getting the short end of the stick pretty well.

Can't Act Perverted Toward a Love Interest: Zenitsu in his desperate attempt to get married as quickly as possible often literally throws himself on women begging for them to marry him, usually in a comedic manner, and at one other time he has proclaimed really well his love for a woman's curves; with Nezuko however he is quite tame, his crush on her is quite the puppy love, innocently presenting her with flowers included.

Canon Immigrant: Zenitsu is shown to have the artisan ability of making flower crowns in the Light Novels, he of course wants to give one to Nezuko; that happens in the manga at the very end, little epilogue panels in the final chapter show Zenitsu making one for Nezuko, it is the only legitimate way he can actually court her without embarrassing himself.

Casanova Wannabe: Hits on girls frequently but unsuccessfully, and often tries to charm Nezuko.

Character Development: Used to think small, as in he only wanted to show off as a demon slayer if it could make him the center of attention, especially with girls; later on Zenitsu starts to have more serious goals of becoming strong enough to be able to protect as many people as he can. And when his beloved master is forced to commit Seppuku in shame for another pupil of his betraying the Corps to become a demon, Zenitsu actually starts having a clear goal of wanting to become the Thunder Hashira like his master once was.

Characterization Marches On: His attempts to charm girls are phased out as the series progresses, and instead focuses the humor on Zenitsu's jealousy of the mere prospect of someone having a girl while he doesn't, and his freak-outs over harsh demon-slaying training sessions. It can be implied Zenitsu just sort of decided to make Nezuko his main goal, but the series doesn't actually show him making the resolve of forsaking chasing after someone else, and even after meeting Nezuko he tried to charm the Butterfly Estate girls. After that, though, Zenitsu isn't seen trying to charm girls other than Nezuko ever again. note

Charged Attack: Can only use his strongest 1st Form variation, Thunderclap Flash: Godspeed, twice in a day; however, by the end of series, Zenitsu has honed the ability further, being able to use it more than twice in a day.

Chivalrous Pervert: Zenitsu's colorful rant about women and their curves gave him a bad first impression with the Butterfly Estate girls, but Zenitsu is actually seriously commited to the idea of marrying someone fully intent on loving them, even when it made him suffer, as in the past there were women who entertained him, with bad intentions, like the unknown woman whom Zenitsu had eloped with and piled him with debts, where he had to be rescued by his future swordsman master, prior the beginning of the series.

City Mouse: The Databook reveals Zenitsu was born near Tokyo, and he's generally in touch with modern society and the industrial advancements of early 20th century Japan. This puts him in contrast with Country Mouse Tanjiro and Wild Child Inosuke, especially when he's the only one of them who actually knows what a train is.

Contagious Heroism: Zenitsu was more of a reluctant coward before meeting Tanjiro, the guy always had some goodness in him but his willingness to act was less prominent, with Zenitsu wanting to avoid danger as much as he could, needing some push for him to act as a hero; working with Tanjiro most of the time, however, has made Zenitsu grow quicker to act on behalf of others as walking with Tanjiro has made him face more danger than he likely would if they never became friends.

Coordinated Clothes: The haori Zenitsu wears was given to him by his master Jigoro, they both wear the same triangular symbols pattern; a later series volume extra information makes it more of a bigger deal as it directly differentiates Zenitsu and Kaigaku's views on their master, Zenitsu chose to wear what was gifted to him, while Kaigaku was also given the same haori but he didn't even wear it, this shows which disciple really respected their master.

Costume Evolution: After all is said and done, by the very end of the series Zenitsu takes upon wearing his beloved master's haori, a simple and clear way to show Zenitsu has finally succeeded Jigoro's wishes.

Cowardly Lion: The actual core of Zenitsu's character; on the surface he is cowardly, is always complaining about something, screaming at the top of his lungs that he should just run away and give up on being a demon slayer, turns out that despite of all his incessant tantrums Zenitsu never actually runs from the heat of battle, to the point he just developed a kind of trance sleep mode where he can bravely fight against his foes while being somewhat unconscious thus unable to fear what is in front of him, and as the series progresses Zenitsu becomes able to fight more as himself instead of always relying on his trance mode.

Crazy Jealous Guy: Comically becomes one towards Nezuko after finding out about her, to the point where he attacks her own brother due to a misunderstanding and later has an urge to kill Inosuke after Nezuko mistakenly calls Zenitsu by the former's name.

Crippling Overspecialization: Can only use one Thunder Breathing technique (the basic technique), but he is very adept at it, to the point he developed phases for it: Thunderclap Flash -> Six-Fold -> Eight-Fold -> Godspeed.

Crouching Moron, Hidden Badass: He's usually a wimp, but when he can still pull through when things get bad.

Crush Blush: Zenitsu does this a lot when it comes to Nezuko, from innocently presenting her with a flower to going full tomato red face in his dreams where Nezuko can actually speak normally and reciprocate his advances. His dreams sort of come true when he sees Nezuko finally speaking and thinks she did it for his sake. Of course, she currently isn't able to speak in full sentences, and she ends up breaking his heart by accidentally calling him Inosuke.

Curtains Match the Window: While this is a theme with several other characters in the series, Zenitsu is the one that sticks out the most, his whole yellow thunder theme is all over his design, blond hair, gold eyes, yellow coat and yellow tint on his nichirin blade.

Deadpan Snarker: Zenitsu does not buy into Tengen's flamboyancy, immediately thinking Tengen is completely mental for his extreme personality and demanding to be worshipped as the god of festivities and flamboyancy, insulting Tengen with sarcastic thoughts. It goes into greater sarcasm against Kaigaku, whom Zenitsu finally talks back to, Zenitsu showers Kaigaku with insults as the disciple who could never learn the first Thunder Breathing form and who couldn't be a successor to their master.

Death-or-Glory Attack: The ultimate variation of his Thunderclap and Flash technique, God Speed, is so powerful and ridiculously fast that Zenitsu claims using it more than twice in a day will render his legs completely useless, the strain on his muscles and bones is just too great; even the results of keeping it in the twice-a-day limit is very dangerous, Zenitsu felt as if his legs were broken after the fact. The only thing Zenitsu could do to improve the usage of God Speed, later in the series, is just shape himself up so he can use more than twice in a day, the drawback never really goes away.

Declaration of Protection: Zenitsu in his never-ending quest to try get himself a lover, self-declares himself to be Nezuko's protector as soon as he finds out she is a harmless demon and sister of his newfound good friend Tanjiro, as he thinks she should be protected at all costs; this is mostly used as a comic motivator for Zenitsu to get up and do his job as a demon slayer and to train harder, in a fight against the Lower Rank One however this is applied seriously, with Zenitsu actually speaking to Nezuko in his trance mode that he will protect her, shielding her from the Lower Rank's attacks as she was fighting alone till then.

Desperately Craves Affection: An integral part of his character, used for both comedic and dramatic effect, as Zenitsu grew up as a lonely orphan nurturing a strong need of belonging, wanting to be needed by those around him and eventually be loved by a significant other. Early on this is shown in his comedic failed attempts to charm girls, while the dramatic side is shown through all the challenges Zenitsu is pushed to overcome his flaws, like his cowardly behavior, in order to grow as a demon slayer, hoping others will appreciate him as their hero.

Disguised in Drag: To spare Aoi from being forcefully drafted into Tengen's mission of infiltrating a Red-Light District to rescue his contacts (his 3 wives) and exterminate a demon all three boys volunteer to take the mission in her place, but since Tengen really needed female slayers he forces the trio to disguise themselves as girls and apply themselves as courtesans. Zenitsu is the one who stands out the most due circumstances forcing him to go throughout the entire event dressed like a girl, while everyone else had already broken off the disguise during the nerve-wracking fight against the demons.

The Dulcinea Effect: If Zenitsu can't muster the inner courage he has to surpass all of his cowardice on the surface, a good way to make him focus and be brave, or at least try to, is finding himself in a situation where there's a woman in peril. Zenitsu will then stop his complaining right away and go for the rescue.

Elemental Hair Colors: Downplayed since he doesn't have electricity powers (though Zenitsu got his blond hair color after being struck by lightning), but he is the primary Thunder Breathing user in the story and has blond hair to match.

Establishing Character Moment: His proper character introduction gives all the foundation of Zenitsu's character, the bad and the good in him:

1) He is desperate to find himself a lover and marry right away.

2) He is quite easily scared and overreacts to near everything; upon close inspection, however, Zenitsu never skips on his fights when the chips are down.

3) Zenitsu says he is weak and needs to be protected, while, in fact, his strength is pure speed; his fight record and achievements do not lag behind any of his friends.

4) His tantrums makes it seem he only cares about himself, in truth Zenitsu is faithful and shows immense gratitude when he protected Tanjiro's box, Zenitsu had only just gotten close to Tanjiro, and by then he had no idea what actually was inside the box, all Zenitsu knew it was important to Tanjiro, so he protected it with his own body as a shield.

Fast as Lightning: Thunder Breathing is a swordsmanship style used by Zenitsu that channels strength into his legs, allowing him to dash at incredible speed to slash enemies with the visual effect of lightning.

Finishing Move: The Thunder Clap Flash is the only form Zenitsu has managed to learn in his Thunder Breathing style, but he has mastered it to an extreme degree where his one move is pretty much the battle finisher as Zenitsu created several phases within the technique to make the Thunder Clap Flash as powerful as he can possibly make it out to be; Zenitsu later creates a technique all by himself, the 7th Thunder Breathing form: Flaming Thunder God which is pretty much a certified battle destroyer move.

Flash Step: The main application of the Thunder Breathing style, while all demon slayers must be fast to move and quick to draw their blades a Thunder Breathing user will go beyond that and be ridiculously fast to the point even demons will be surprised by their speed, Zenitsu is so adept at the only real Thunder Breathing technique he mastered that it makes him lightning-fast to incapacitate and kill demons, making up for the lack of skill in the other Thunder Breathing forms.

Flower Motifs: In an author's description of Nezuko's thoughts on Zenitsu, Gotouge Koyoharu has stated that Nezuko, in her childlike mind, innocently sees Zenitsu as a funny-looking dandelion; Zenitsu's supernatural blond hair, and the way it stylized, does pass said impression.

Fragile Speedster: The one Thunder Breathing technique he can use makes him incredibly fast, but he lacks in other departments. The Flaming Thunder God technique, however, is both fast and powerful enough to slice through an Upper Rank's neck.

Friendless Background: A crucial point of his backstory, Zenitsu had no true friends before meeting Tanjiro, the guy really had a need to belong since he had no family, which prompted himself to try being part of any group of people when he was younger, however, Zenitsu's cowardly and crybaby moods either quickly made others want to stay away from him, or fake tolerance to later scam him. Nobody before his master, and later Tanjiro, bothered to notice Zenitsu's good qualities beyond his apparent faults.

Friendly Rivalry: Tragically ends up as only one part thinking it had any friendship in-between, Zenitsu admired Kaigaku as his colleague in training despite all the volley of insults the two threw at each other, turns out Kaigaku really hated Zenitsu and betrayed their master to seek more power as a demon, then mocking their master's suicide by Seppuku in order to atone for Kaigaku's betrayal, that made Zenitsu lose all of the little respect he had for Kaigaku, fighting and killing him.

Glowing Eyes of Doom: The anime adaptation added more fanfare to Zenitsu's absolute body stress to initiate the steps to augment the power of his Thunderclap Flash attack, in the manga it showed white eyes, the anime made it go white and then added glowing effects of light and thunder.

Green-Eyed Monster: Admits that he was more infuriated about the fact Tengen is quite the handsome man, and has three beautiful wives, than being forced to disguise himself as a female courtesan for their covert demon slaying mission, that however is Played for Laughs and is just one of the many times Zenitsu sees, or simply mistakes, other men having better luck with women than him.

Grew a Spine: The conclusion of his character arc; Zenitsu finally forces himself to grow out of his self-deprecating mental abyss, forsaking his sleep trance mode entirely, when the tragedy of his master's death strikes, going on to face the cause of said tragedy in the form of his former fellow disciple, Kaigaku, who now turned into a demon, traitor of the demon slayers; Zenitsu faces Kaigaku head on, and kills him, the older disciple whom Zenitsu was completely submissive to before due seeing himself as inferior and partially out of respect, despite their differences Zenitsu still wanted to see him as a brother before everything went south.

Happily Adopted: Having no parents and living an early life where he tried to make a living by walking in groups of equally aimless orphans, then getting saddled with a woman piled with debts, Zenitsu was taken in by a swordsman demon-slaying master; Zenitsu grew fondly of him, going on to affectionally call him grandpa.

Heroic Second Wind: Pretty much what Zenitsu's sleep trance mode amounts to, Zenitsu at first will seem completely harmless as a demon slayer, cowering and screaming his lungs out about how he cannot perform his duties properly; the demon will buy into Zenitsu's apparent incompetence, underestimating Zenitsu's capabilities and going for the seemly easy kill, Zenitsu may suffer some initial damage but then falls asleep, his trance mode kicks in and the battle pretty much turns on Zenitsu's favor with the demon in complete disbelief on how the apparent weakling suddenly became so strong; as the series progresses Zenitsu starts talking while in his sleep trance mode, showing his personality also gains a huge confidence boost, it tops off with Zenitsu not needing his trance mode anymore, he becomes confident enough to fight his battles with his eyes open.

Heroic Self-Deprecation: The darker side of his need for validation from those around him, Zenitsu harbors some deep self-esteem issues from his past where he quite never found a group of friends he truly belonged to, feeling he was useless and then getting called as such after being abandoned by past acquaintances, Zenitsu started to believe he really doesn't amount to anything as a person and only kept taking the path of the sword out of respect for his master and the waning hope that maybe someday someone will see him as their hero.

Hidden Depths:

Is much more familiar with the advancements of the wider world than one would think. For example, when boarding a train for the first time Zenitsu is the only one to know what it is, while Inosuke takes it to be the "master of the land" and tries to fight it while Tanjiro (a "country bumpkin" in Zenitsu's own words) reasons that it could be a guardian spirit. A volume's extra illustration comically shows the trio's reaction towards Tengen revealing that his mission would take place in a Red Light District; naturally Tanjiro and Inosuke have no reaction as they have no idea what that place means, Zenitsu, on the other hand, is fully red and fidgety upon hearing it and awkwardly asking both unamused boys how can they not know what a Red Light District is.

Because of his enhanced sense of hearing, he's an incredibly good musician who can play back any song after hearing it once.

Beneath his insufferable behavior and lecherousness, Zenitsu is a profoundly sweet young man, this being the reason why the people that know him are tremendously fond of him.

His Own Worst Enemy: Zenitsu is too obsessive, grabby and clingy for the comfort of the women he meets. As he approaches women with unbound zeal and behaves like a showoff, instead of approaching out of a sincere drive to help and sympathize (like Tanjiro does), said women generally dislike him. Sure, he's a nice guy... but he's no gentleman.

Holier Than Thou: Played With. While not outright stated, he feels he is more moral compared to others and constantly chastises his comrades for their antics, yet he does things that are more or less far from moral, in other words, he displays self-righteous behaviors, such as trying to propose a girl in a desperate way, creeping them out, and blame others for things that either aren't their fault or have little control of, and is even quick to assume the worst of them. When he found out that the demon Tanjiro was carrying was a cute girl named Nezuko (who was also his sister), his first assumption was that he was all lovey-dovey with her, and began to attack and scream at him for it without giving him a chance to explain.

Hypocritical Heartwarming: In a flashback, Zenitsu got into a fight with some fellow Demon Slayers when they mocked Kaigaku for not being able to perform the first form of Thunder Breathing. Zenitsu never liked Kaigaku, but he did respect him, at least before he found out Kaigaku became a demon and caused Jigoro to commit seppuku.

Hypocritical Humor: Another source of the comedy attempts on Zenitsu's behalf, it gets explored more once his cowardly lion antics start to take a back seat; Zenitsu freaks out when other people do, or he mistakes them as doing it, exactly what he himself would like to do, as in Zenitsu throws himself on a random girl imploring she marries him, when he is on demon-slaying duty, but loses his mind when he mistook Tanjiro and Nezuko as a pair of lovers instead of siblings, babbling about the serious duty that is demon-slaying, so fooling around in love is taking their duty lightly; he repeats this episode at the beginning of the Red Light District arc, mistaking the recon and rescue mission as Uzui wanting to score himself a woman to have as his wife.

Iaijutsu Practitioner: At least when he's asleep, Zenitsu can draw his sword, slice, and sheathe it so fast that you can barely even see it leave the scabbard, as seen during his "fight" against the tongue demon: one moment, Zenitsu's hand slightly twitches and exposes only a tiny bit of the blade, the very next instant, the demon's tongue is already severed. He then finishes things off by combining this with a Flash Step to decapitate his foe.

I Just Want to Be Loved: A place to belong with people who wish good things upon him, that's what Zenitsu wanted as he laments never having a place to himself by being orphaned, possibly abandoned at birth, and no one ever expecting anything out of him, labeling him as worthless; Zenitsu felt prey to people in the past who took advantage of his need to belong by faking a bond with him, using and abusing the guy. However that's all in the past as Zenitsu realizes that meeting with his master, Jigoro, changed that situation, with his master he found a place to be and someone who honestly wished him good, and that extends, even more, when Zenitsu finds Tanjiro, Nezuko and Inosuke, his honest friends.

I Just Want to Be Normal: While Zenitsu has an inner dream where everyone sees him as a hero who can be relied on to always protect them, thus being a wish of someone who wants to be special in the end, the boy used to gravitate mostly towards thinking that the demon-slaying life really isn't for a person like him, asserting that a normal, humble life where he lives quietly and builds a family is the best outcome he could ever hope to achieve.

I Just Want to Be Special: His life as an underachiever who could never really make real friends, or ever be center of attention, left Zenitsu with a burning desire that for a person like him only becoming someone special could make people truly like his company; special in Zenitsu's case means becoming a demon slayer who can defeat any nemesis and be loved by people everywhere he goes, this desire of his clashes directly with how much of a negative person he is towards himself, while deep down Zenitsu wants to reach greater heights, on the surface he thinks of himself as someone who will just die at every demon encounter thus having any aspirations would be a waste.

Imagine Spot: In the second Light Novel during the event in which Tengen, Zenitsu, and Inosuke go to the Hot Springs, Zenitsu wastes no time imagining in vivid detail how Tengen's wives, Hinatsuru, Suma and Makio, would take baths together.

Informed Ability: At the height of Zenitsu's supernatural hearing, it was stated he can even hear someone else's thoughts, however, that is never put on display throughout the series; the best showcase of Zenitsu's hearing is him being able to somehow "hear" how good a person is through their body movements, speech and breathing, that's how Zenitsu devoted himself to Tanjiro as a great friend.

Informed Flaw: During the curse induced dreams the heroes have against the Lower Rank One fight, Zenitsu appears like a caricature of himself in Kyojuro and Inosuke's dreams as a stereotypical man with overbite teeth formation in a very exaggerated manner, that contrasts greatly with his normal appearance where no flaws in his face can be seen, and that would be ok since those were just illusionary versions of Zenitsu, however in a volume extra the author does say Zenitsu really has overbite, but outside the caricature version of him it just can't be seen.

It's All My Fault: After defeating Kaigaku, in his near-death vision of the afterlife, Zenitsu talks with his master one last time, blaming himself for his master's seppuku in atonement for Kaigaku's betrayal and for the latter's betraying them in first place; Zenitsu reasons that if he wasn't such a coward and an incompetent disciple he wouldn't have brought shame to his master, that if he was as good as Kaigaku their master wouldn't have felt the need to try to atone for one of his best disciples turning over to the demons. The master however doesn't agree with Zenitsu, honestly believing Zenitsu has always been his pride and joy, as previous flashbacks shows the master supporting Zenitsu at every turn, even if he tried to run or cry, the master saw through Zenitsu's layers in that beneath all the apparent fear the boy never actually stopped trying to make through the master's training regime, all paying off with Zenitsu defeating Kaigaku who was seen as the much stronger disciple by others.

Large Ham: Zenitsu is 120% committed to honestly expressing what he feels, when he feels, by screaming it on top of his lungs.

Let's Get Dangerous!: He completely drops his usual cowardice when facing his treacherous former fellow pupil Kaigaku and showcases that he's a true heir to the Thunder Breathing techniques.

Lightning Can Do Anything: Apparently lightning can grant permanent perfect hair dyes. Zenitsu who was once black-haired got a free dye job from a lightning bolt striking him, turning him permanently blond.

Locked into Strangeness: Used to have black hair until a bolt of lightning struck him, somehow permanently turning his hair blond. The official High School A.U. has Giyu telling him to dye it black since dyed blond hair isn't allowed at school.

Lovable Coward: Despite always being terrified, he always jumps to save his friends.

Love Martyr: Thankfully for Zenitsu this is just a small part of his backstory, and he isn't exploited again in current events; due his ongoing gag of wanting a girl to marry him Zenitsu has actually found some women in the past that pretended to entertain him instead of just rejecting his desperate advances like the comedic side of his attempts usually go, those past women all tricked Zenitsu and never stuck with him, he knew those women were bad but he really wanted to have someone by his side, fearing he will die alone as an orphan since childhood.

Meaningful Name: His given and family names are rooted in his character:

Zenitsu means "goodness", shedding light on his deeply good natured personality underneath his apparent immediate flaws such as his whininess and cowardice.

Zenitsu's family name, Agatsuma (我妻), can be read as Wagatsuma meaning "My Wife", it can be related to the running gag of Zenitsu being desperate to find himself a wife, as he sometimes upstages his attempts at charming girls with the immediate proposal of marriage.

Metallic Motifs: A blade, katana in particular, Zenitsu was motivated by his master Jigoro to be like a blade during its forging, to constantly be purified and focused on the one thing it matters: mastering yourself to eventually become unbreakable steel. Zenitsu's development as a demon slayer goes exactly like the katana forging process; his Thunder Clap and Flash technique even has an added deeper meaning to its stronger forms, Zenitsu literally calls them "Folds", not only he is folding the angles of his dashing but also "folding himself" like forgery processing, making him, the blade, a better molten steel. At the end, to hit the point home, Zentisu's actual nichirin blade is the only one out of his companions Tanjiro and Inosuke that never breaks throughout the series.

Mood-Swinger: Played for Laughs whenever a scene calls for getting Zenitsu out of his comfort zone, that is getting him to go through a demon-slaying mission despite his cowardly tantrums, Zenitsu will go from a seemly well behaved person to an incredibly nervous train wreck, yelling at the top of his lungs about how he is going to die at any second; another is getting him to train under a deadly regime, Zenitsu will immediately lose his mind and curse whoever thought of planning that training session, and when Tanjiro is there to make a counterpoint about how a deadly regime can get them better results at getting stronger, Zenitsu will unleash his fury at someone he once said was his great friend, only to pull a complete 180 degree turn on Tanjiro once he praises Zenitsu for being an important reference to others training as well, making Zenitsu then think his presence at the program really is necessary and that training isn't so bad after all.

Motor Mouth: In his fits of rage over attracting girls or believing someone else has a girlfriend, he'll start delivering huge speeches over how they're scum, according to himself, and that they should be ashamed. If you try to interrupt him, he'll get even louder.

Multicolored Hair: He has blond hair with orange ends.

Mundane Utility: Zenitsu's superhuman sense of hearing came in very handy during the undercover investigation in the Red Light District arc, as he disguised as a cross-dressed courtesan didn't quite have the looks to pass himself as a beautiful woman but could still entertain guests with his Shamisen playing skills, his super-hearing could make him be fully capable of playing any song he had heard just once, as the sounds are perfectly ingrained in his memory.

Mysterious Past: In contrast to his fellow main characters, Zenitsu's past isn't shown in much detail, and anything before his life as a young child who lived among wandering children is completely nebulous. The first databook reveals Zenitsu was born near Tokyo, but who his birth parents were, why they abandoned him, or who actually named him isn't ever disclosed. The second databook released after the series' end, which contains specific family trees for the characters, follows with not saying anything about Zenitsu's birth parents, it simply states he was born out of a father and a mother, both nameless factors; in the end Zenitsu's story was truly about the destination, his birth parents truly may be completely irrelevant, just another case of child abandonment.

Near-Death Experience: In the aftermath of Zenitsu's winning bout against Kaigaku he has a vision of the river of death, Zenitsu sees his beloved master on the other side, Zenitsu apologizes for not being a good pupil and preventing his death. The master, however, cries tears of joy and tells Zenitsu he has always been his pride and joy. Zenitsu tries to cross the river to his master's side, but spider lilies bind his feet, preventing him from crossing over, symbolizing how it's not Zenitsu's time just yet, before he gets reanimated back to life.

Necessary Drawback: As the series progresses Zenitsu steadily becomes one of the fastest beings in the story, but the drawbacks of his Thunder Breathing techniques never fade away, Zenitsu only works around making the extreme muscle fatigue on his legs take longer to kick in after continuous usage of his abilities; that limitation is put into place so Zenitsu doesn't become an untouchable speedster without limits, otherwise he would be an unparalleled demon slayer, with very few equals.

Nervous Wreck: Zenitsu is a capable guy when he finds the courage to brave through killing demons, or just resorts to his trance sleep mode where he fights in a state where fearing the enemy isn't possible, but he tends to freak out like no tomorrow at every single thing before he shows his true colors.

Nice Guy: Don't let his apparent cowardly antics fool you, Zenitsu is actually just as much of a nice guy as the ever selfless Tanjiro is; Zenitsu has gone on record of being nice to people he had only met for minutes at most, and being good to people he actually knew didn't even like him because Zenitsu just wanted things to be better, and even Inosuke whom he is always butting heads with, Zenitsu tried to cheer him up along with Tanjiro after the Spider Family fight left Inosuke feeling he was weak and useless.

No Indoor Voice: While nowhere as constant as Inosuke is about this trope, Zenitsu gets loud when he vocally expresses subjects he is passionate about, specifically pertaining to pretty girls.

No Listening Skills: Despite his enhanced hearing, he is hardly a very attentive listener. He often speaks and screams non-stop even when told to. In his jealous state, he completely stops listening to reason. He insists he has any say, while he refuses to let anyone who attract girls or he thinks they are flirting with someone talk, even telling them they are fantasing when he is told the true version of the story, despite being the one who is overthinking. When he saw Nezuko for first time, he didn't listen to Tanjiro trying to tell him she is his younger sister who was turned into a demon the night his family was murdered, trying to kill him, thinking she was his girlfriend. When Tengen tasked the trio to help him infiltrate the Red District, he didn't listen to Tengen telling him he sent certain people (his wives) to infiltrate there to hunt a demon, assuming he asked the trio for help to find a bride, despite being already married, even telling him he is fantasing everything when he told part of the real version of his story, much to Tengen's annoyance.

No Respect Guy: In spite of his relatively equal level to Tanjiro, he gets no recognition for his merits (especially from girls) because he's lazy, complacent, wimpy and cowardly. He's a good guy and an excellent warrior, but he's incredibly annoying.

Noodle Incident: Zenitsu's troubled past with people who took advantage of his desperate sense of belonging is never explored in detail, he alluded to in a single sentence during the Drum House arc that there were vixens other than the woman he eloped with before that were just as bad, if not worse, in abusing his goodwill. Said past trauma is never brought up again, not even in other publications.

Not a Morning Person: A tiny bit of information contained in one of the Extra chapters published with the 2nd Fanbook, after the manga ended; Tanjiro informs that Zenitsu at first had to adjust himself to the early morning routine of the Kamado family after he moved into their home at the end; since Inosuke has always been a mountain boy he didn't have the same morning issue.

Offscreen Moment of Awesome: A few moments where Zenitsu uses his body to protect others take place completely offscreen, the first being where he saves Shoichi from a fall out of the Drum House's upper floor, Zenitsu apparently saved the boy and hit his own head in the process, bleeding from the concussion; another is during the Mugen Train arc, Zenitsu saved Nezuko and a few passengers by embracing them and taking everyone out of the colliding train after Enmu's defeat, yet again hitting his head hard, bleeding from the impact.

One-Hit Kill: with Zenitsu's signature Iaijutsu discipline for his Thunder Breathing, his fights against demons who don't measure up to him usually end in a single attack of his, a swift slice through the neck, instant decapitation.

OOC Is Serious Business: He completely drops his normal cowardly attitude when confronting Kaigaku for becoming a demon, causing their master to commit seppuku alone and leading him to die a slow and agonizing death.

Parental Abandonment: It was briefly touched upon that Zenitsu has no parents, although it hasn't been revealed whether they abandoned him or they died (though Zenitsu believes they abandoned himnote ). After living a harsh early life Zenitsu was taken in by his Demon Slayer master, who Zenitsu views as his grandpa.

Prone to Tears: Boy does he ever, it is mostly used in comedic effect to either show Zenitsu reacting to being rejected by a woman for the umpteenth time or his crushing fear of fighting against demons while being a professional demon slayer himself; however, there are memorable times where his tears were used for dramatic and awesome moments.

Rage Breaking Point: Zenitsu had a very subservient relationship with his elder colleague disciple Kaigaku, the latter couldn't stand the former's presence due Zenitsu's difficult behavior as someone with low self-esteem who seemly wasn't showing much progress while being trained under the same master, even so Zenitsu tried to make things work with Kaigaku by respecting him; all goes down south when Kaigaku betrays the demon slayers to become a demon himself and as a form of atonement their master commits seppuku to pay the price of shame, with that Zenitsu loses all little respect he had for Kaigaku and showers him with insults and hard truths in their fight to the death, to the point Kaigaku even sarcastically compliments Zenitsu for finally talking back to him.

Rank Up: Zenitsu starts his career as a Demon Slayer as the lowest 10th rank, Mizunoto, after the Mugen Train arc he rises to Kanoe, 7th rank; the Infinity Castle arc starts with him as Hinoe, 3rd rank, three steps away from becoming Hashira, which is only revealed in the 2nd Databook.

Rousing Speech: In the later moments of Muzan's fight, in the Infinity Castle arc, after many slayers have been battered up to near-death, and Tanjiro had just been hit by a powerful shockwave emitted by Muzan, everything looks dire; Zenitsu steps up to save Inosuke from an attack and pushes himself to lift Tanjiro's morale up, as the latter laid down in almost a convulsion state, telling him that he cannot die, Tanjiro has to live through that incredibly deadly fight and go home with Nezuko, who had just turned human, Zenitsu being alive and boosting his morale moves Tanjiro to tears. Zenitsu who was once a cowardly slayer, who had to be pushed over the edge and motivated to fight, now steps up on behalf of others, motivating them as well.

Running Gag: At first it seems the jokes on Zenitsu's behalf are those played upon his cowardice and wanting to score a girl, in truth it is his extreme mood swings that form a circle around all the attempted humor with his character; coward tantrums, wanting to impress a girl, losing his cool over harsh training sessions, having little patience for eccentric personalities (while he is one to talk), jealousy of others having a mate, all of that is to instigate an extreme chain reaction of emotions on Zenitsu.

Sad Clown: Though hammy and emotional on the outside, when one of Enmu's henchmen breached Zenitsu's subconcious, it was a pitch black blank devoid of any hopes and dreams made manifest like the subconciousness of Rengoku, Tanjiro and Inosuke's. A life of abandonment, loss & betrayal had left Zenitsu's heart so hollow and bereft of hope for the future, all he has to live for is the present; until he met Nezuko.

Screams Like a Little Girl: Part and parcel with his No Indoor Voice and Large Ham personality, Zenitsu screams every emotion on the top of his lungs, especially when he is terrified. It's a testament to the skill, comedic timing and vocal-chord strength of Hiro Shimono that he has not lost his voice after his introduction arc.

Selective Obliviousness: Jumps to conclusions when he sees Nezuko for the first time, attacking Tanjiro believing that she was his lover. Once he learns she is his sister, his treatment of him was never brought up.

Serial Romeo: Zenitsu immediately forgets about the previous woman he desperately asked to marry him upon finding a new target; the only one he hasn't let go is Nezuko, partially because he might like her more than his usual crushes on first sight and that Nezuko is a nice demon girl in a state of mind where she really can't decide or understand complex things yet, she is just nice enough not to repudiate Zenitsu on sight.

Shock and Awe: Thunder Breathing adepts have lightning sparks all over their techniques, Zenitsu is given more fanfare due to how much he overexerts his usage of the Thunderclap Flash; however, all the lightning is just a visual effect of portraying elemental affinity to the technique's main aspect, speed. That said, the times where Zenitsu used his technique to its fullest potential at given points in the story, it was noted a sound "like thunder" could be heard coming from his actions, implying Zenitsu is actually breaking speed barriers when he goes all out.

Shown Their Work: Zenitsu's strongest attack shows Gotouge did the proper homework on the effects of such insane speed, the 7th Form: Honoikazuchi no Kami has Zenitsu's haori starting to be thorn apart on his way to behead Kaigaku, showcasing just how fast Zenitsu is at that moment, guaranteed super sonic speed at the bare minimum, in order for the air friction to start burning his clothes off.

Significant Wardrobe Shift: Zenitsu at the beginning of the story was a meek, whining and reluctant demon slayer, he only became a warrior to show gratitude towards his master Jigoro, who once saved him, wearing a bright yellow haori, given to him by Jigoro which is themed after his own haori. In the very end of the series Zenitsu takes up his master's haori, who died before Zentisu could show how much stronger and courageous he grew to be, but Jigoro could see that from the afterlife, personally congratulating his pupil, thus Zenitsu has successfully inherited his master's will after he has helped to kill the source of all demons.

Single-Stroke Battle: When Zenitsu fights against weaker demons it goes accordingly to the theme more precisely, in one single stroke of his Thunder Breathing Style, which invokes an Iaijutsu discipline, Zenitsu quickly dispatches the foe with a swift slash to the throat; on longer battles however Zenitsu tries to charge his speed to a ludicrous degree till he blitzes through the area, all to find that sweet spot to behead the enemy.

The Slacker: In Zenitsu's case it is more of a combination of his bad self-esteem and fear of getting hurt in any way possible, so he hates any kind of training that will force him to put more effort than he personally would like to give, with that Zenitsu must really be coerced in a way that will make him go through it even if complaining along the way, two popular methods are he himself feeding on his dreams that getting stronger will make Nezuko fall for him, and the other is filling him with praise, Tanjiro honestly believes in Zenitsu so that usually works, but also Shinobu pretended to cheer Zenitsu up to get him going. The tragedy with his master's death made Zenitsu be serious about his training and future without others forcing him, however.

Sleepwalking: Except with fighting. He fights with pure instinct when unconscious.

The So-Called Coward: His constant cowering against having to face demons in battle already looks odd enough due Zenitsu never actually running away from his duties as a demon slayer, crying on the way to battle but still fighting nonetheless; the full realization comes when Zenitsu's rivalry with a former colleague of his comes into play, Kaigaku was said to be Zenitsu's total opposite, he actually learned most of the Thunder Breathing forms and always made sure to brush on Zenitsu's face how much of a failure and a coward he was, but in the end it was Zenitsu who stuck to the Demon Slayer corps always fighting against demons, while Kaigaku was revealed to be a true coward who immediately threw his life away for more power as a demon; resulting in Zenitsu killing his supposed stronger colleague turned traitor.

Spell My Name with an "S": While Zenitsu is the most common way his name has been spelled for western audiences, a more proper romanization would be Zen'itsu to indicate its correct pronunciation, there's emphasis on the Zen (Zen - i - tsu) instead of saying it like Ze - ni - tsu. Then there's the author herself trying to give it an original spin, Gotouge has said the emphasis on the "tsu" should be bigger than on "Zen".

Split Personality: A downplayed example; Zenitsu at first glance is cowardly and whiny, however, the sleep trance he developed for unconscious combat is pretty much the ideal version of himself that Zenitsu dreams, but thinks it is impossible, of becoming. In later events when Zenitsu starts talking during his trance, he is shown to be very brave and just, fully in tune with all the results of his Thunder Breathing training, in this state Zenitsu remembers everything that happened while he was awake, meanwhile the normal Zenitsu does not remember what he did during his trance, furthering his own perception that he is weak and worthless. In truth awake Zenitsu and trance Zenitsu are the same person, it's only that during sleep Zenitsu removes all of his immediate flaws, which eventually reaches the natural conclusion of Zenitsu forsaking the need of his trance, becoming a hero fully aware of himself.

Super Hearing: His hearing is very acute, and he can even tell people apart by the way their bodies sound.

Super Speed: While the most capable Demon Slayers have superhuman speed by default - they couldn't keep up with the much stronger demons if they didn't - Thunder Breathing adepts are on a tier of their own. At the peak of their abilities even demons cannot keep up with their speed; Zenitsu, when he gets serious, moves so incredibly fast that even two Upper Ranks were not able to follow him at all.

This Is Unforgivable!: Zenitsu was absolutely pissed at Kaigaku for becoming a demon, resulting in his master committing suicide to atone.

Through His Stomach: Comically asked Nezuko to marry him on the prospect of feeding her Sushi and Eel every day, which resulted in a failed attempt because Nezuko's mind as a demon was not able to understand what Zenitsu was proposing on that event. Plus, Zenitsu's attempt gets ruined when Nezuko calls him "Inosuke".

Throw the Dog a Bone: It seems like he and Nezuko do hook up after the fight with Muzan, seeing as how their descendants in Modern Day Tokyo bear a resemblance to him and her.

Too Kinky to Torture: As long as the one doing the "Torture" is female, he won't mind at all.

a shining example is the fight against his former colleague pupil, Kaigaku, who betrayed their master and team by turning into the very demon kin they are supposed to hunt, Zenitsu fought against someone who was touted as superior to him as a human, then becoming a demon even more powerful than a regular demon, and Zenitsu actually won. Zenitsu has even toughened up to fight against Took a Level in Badass: As the series progresses Zenitsu starts having more battles in which he doesn't cower into his sleep trance mode to fight without fearing his opponent; Muzan in his strongest form and managed to damage Muzan for everyone fighting him.

Unconscious Objector: Zenitsu has defeated enemies while unconscious.

Undying Loyalty: The shining quality that makes Zenitsu stand out beyond his apparent cowardly and whiny behavior; Zenitsu will bury all his flaws within when it comes to giving his whole self for people who were honestly kind to him and believed he could reach greater success in life. Zenitsu is at first scared of fighting demons as he fears he could die at any moment, but Zenitsu's master trained him with so much care that he will never abandon the sword; Tanjiro is such a good-natured person that Zenitsu pretty much decided quick enough that Tanjiro is someone whom he should unquestionably trust and put his life on the line by facing all sorts of mortal battles with.

Unexpected Successor: Among Jigoro's students there was a clear divide between the eldest disciple Kaigaku and the youngest Zenitsu; Kaigaku was a seen as the much stronger one, who was keen on being Jigoro's successor, while Zenitsu had no expectations on being Jigoro's chosen one at the time, as the boy seemed to lack talent and any drive to push forward. However, throughout the series Zenitsu slowly but surely grows past his limitations, and Kaigaku turns out to be a nasty traitor who becomes a demon, who Zenitsu then kills. In the end Zenitsu wears Jigoro's haori, being his sole successor, Zenitsu himself never thought he would be the one to succeed his master.

Unlocking the Talent: Zenitsu is of the lazy and extremely self-depreciative variety, he was brought in by a sword master by pure chance, as Zenitsu was piled with debts after eloping with a woman who didn't care for him until his master rescued him from that predicament thus Zenitsu never really saw himself becoming demon slayer, it just happened. Zenitsu endured the hard training imposed on him but it seemed Zenitsu had no talent at all, he just couldn't learn any Thunder Breathing form beyond the first one, said to be the most basic and easiest to learn, however as the series progresses Zenitsu slowly but surely is pushed by those who care for him to break through his mental blocks and show that he has some talent underneath; Zenitsu has pushed the most basic Thunder Breathing form to unseen heights, making it a terrifying technique against demons, and later he creates his own form: the 7th Style - Flaming Thunder God, which is quite the battle finisher move.

Unusual Eyebrows: The forked kind.

Up to Eleven: Zenitsu is the only out of two characters in the entire series, yes even counting the Hashira, to portray an astounding feat of speed by the final arc that automatically placed him on a tier of its own in terms of pure speed, indicated by his clothes starting to rip apart due air friction during his 7th Form: Honoikazuchi no Kami, that accurately showed his speed as beyond super sonic at that moment; the only other character to show a superior feat of speed is Yoriichi, and that is the strongest character in the entire series, a borderline divine man.

When All You Have is a Hammer...: Only managed to learn one of the Breaths of Lightning techniques, Thunder Clap Flash. When that doesn't work, he just does it faster. However, he then managed to invent a seventh Thunder Breathing technique which he uses against his former superior.

Wild Take: Despite its somber tone with all the demon-slaying the series does not shy away from many comedic moments, the characters pull the most extreme face reactions imaginable, Zenitsu is the undisputed king of it as he is the resident overreacting wreck of the bunch.

Would Hit a Girl: Zenitsu's sense of justice is greater than his very pronounced love of women, he drops any pretense of holding a vow of never hitting a woman if it is a very vain, abusive courtesan who turns out to be a demon in disguise; to note Zenitsu is completely set on passing judgement on Daki for her evil deeds, to the point he never cares about how beautiful she is.

Wouldn't Hit a Girl: In his self-proclaimed status as a gentleman Zenitsu says he won't harm girls, not even throw tea on them despite it being part of the focus and agility training in his first stay at the Butterfly Manor, however this gets him no applause from Aoi, and the other girls as they overheard Zenitsu's colorful rant about women, their curves and how he longs for even catching a glimpse of them; against demons, on the other hand, Zenitsu doesn't play the gentleman card, if it's a human devouring monster Zenitsu won't care if it is female, he will go for the kill.

You Are Better Than You Think You Are: The driving force on the arduous path to make Zenitsu grow up. The boy has abysmal self-esteem thus he thinks nothing will ever come out of him putting any effort in doing anything by himself, that's where people who expect something out of Zenitsu come into place to give him that much-needed confidence boost, his master Jigoro was the first to see something underneath Zenitsu's layer of cowardice and laziness, Tanjiro was the second; in the moments Zenitsu realizes there are people out there who believe in him, those are the events where he shows what he can really do, and he does not disappoint when things get going.

Your Eyes Can Deceive You: The setting doesn't bother explaining how Zenitsu can even tell his surroundings so precisely during his sleeping trance mode, with his eyes completely shut, because that should be rather obvious since Zenitsu is explicitly said to have super hearing as one of his abilities thus Zenitsu's form of combat while in trance invokes the same image of the famed Blind Weaponmaster in Japanese tales, who can tell his surroundings with his hearing sometimes even better than those who can see.

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Demon Slayer: Kimetsu no Yaiba: Zenitsu Agatsuma / Characters - TV Tropes

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Following Go To 'I've... been protecting it... because you... said that... this thing is more important to you... than your own life..." Another young member of the Demon Slayer Corps who meets and travels with Tanjiro and Nezuko. Despite being cowardly and insecure, he still tries his best when push comes to shove.

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Jigoro Kuwajima is a Demon slayer trainer. He is a former hashira and the man that paid off Zenitsu’s debt. His breathing was thunder breathing. Unlike his students he could perform all 6 of thunder breathing’s forms. We don’t know much about him. Unfortunately he committed seppuku [also know as hara kiri] which is a Japanese ritual suicide to restore honor to the thunder breathing style because his other student, Kaigaku, became a demon.

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Zenitsu fights better in his sleep than awake because his nervousness isn’t there because he’s asleep.

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Zenitsu Agatsuma

Voiced by: Hiro Shimono (JP), Aleks Le (EN), Jose Luis Piedra (Latin American Spanish), Xavier Castañer (European Spanish), Mosè Singh (Italian)
Live actor: Keisuke Ueda (Stage Play)

'I've... been protecting it... because you... said that... this thing is more important to you... than your own life..."

Another young member of the Demon Slayer Corps who meets and travels with Tanjiro and Nezuko. Despite being cowardly and insecure, he still tries his best when push comes to shove. He fights better in his sleep than awake.

Accidental Misnaming: This happens to him after Nezuko starts talking again.

Nezuko: (to Zenitsu) "Welcome back, Inosuke."

Adaptation Expansion:

The anime adds more at the end of the group's first stay at the Butterfly Estate. In Zenitsu's case, the servant girls scold and advice him to fix his behavior around women, which could be the beginning of Zenitsu's eventual focus on Nezuko instead of random girls, which in the manga happened mostly without warning.

The video game by CC2, Demon Slayer: Kimetsu no Yaiba - The Hinokami Chronicles, adds a new variation to Zenitsu's usage of Thunder Clap and Flash as one of his basic attacks called Kiwami, it simply is a more standard Iaijutsu attack, where Zenitsu just quickly unsheathes his blade to attack and sheathes it back before initiating the proper First Form.

An Aesop: Be happy with what you finally got after being rescued from living a harsh childhood, that's Zenitsu's summarizing how his former colleague Kaigaku went through the dark path despite both of them coming from the same walk of life as former destitute orphans. Zenitsu calls it the box of happiness, people like Kaigaku must learn how to prevent the stream of goodwill from leaking through the box lest they completely ignore all good things that actually happened in their lives, erroneously coming to believe nothing good ever happened to them; that became the main difference between Zenitsu and Kaigaku, the former stopped the leaking from his box after their master Jigoro gave them a decent life and mentoring in demon slaying, the latter was never satisfied, for him Jigoro was obligated to only see one of his students as being worthy, himself, otherwise Jigoro was worthless in Kaigaku's eyes. Zenitsu ends up being the one who kills Kaigaku, avenging the fact Kaigaku's betrayal in becoming a demon led to their master commiting seppuku to atone for his disciple's betrayal.

Aesop Amnesia: Much later in the series, by the Infinity Castle arc, Zenitsu has mostly grown to be a heroic demon slayer, determined to do his part without cowering into fear or self-doubt, but for the sake of humor he will snap back, for a brief moment, to his early crying tantrums when he is in pain or scared of something.

All of the Other Reindeer: During his childhood as a homeless orphan who just tagged along equally destitute children like him, they didn't like Zenitsu's apparent coward nature and crybaby behavior, he was often abandoned by other kids who labeled him as completely worthless, however, as a teenager Zenitsu was taken in by a elderly sword master who paved the way for Zenitsu to come out of his shell, slowly but surely growing into a great demon slayer.

Asian Buck Teeth: Used for caricature comedic effect; both Inosuke and Kyojuro, saw Zenitsu having quite the buck teeth during their dream prison under Enmu's power; Zenitsu's actual normal appearance doesn't have that pronounced buck, but Gotouge says in a extra that Zenitsu does have buck teeth, it just isn't visible.

Badass Baritone: His Japanese voice acting performance, where Zenitsu talking through his sleep trance only has Hiro Shimono drop all nervousness from his usual Zenitsu voice, sounding just calm as a result. By contrast, the English performance in the Mugen Train movie has Aleks Le making his voice sound much deeper, as if trying to hammer the point harder that Zenitsu in his trance is a tough demon slayer.

Berserk Button: Don't even hint that you're hiding women from him, or are in contact with women while he isn't. Either you're a bachelor like him, or you're scum in his eyes.

Beware the Silly Ones: At first glance, Zenitsu appears to be an easily scared crybaby who overreacts to everything and throws tantrums, therefore making it seem like he isn't much of a threat ... until you learn that he's capable of using Thunder Breathing and could therefore could be a powerful fighter if he didn't hold himself back, as the Tongue Demon, the Older Brother Spider Demon, and Kaigaku can attest.

Blank White Eyes: Under intense stress to fully charge his Thunderclap Flash: Six-Fold, Zenitsu was portrayed with fully blanked out eyes, for the first time he showed the technique off. His eyes are drawn fully white later to show his imposing figure against Kaigaku, in moments Zenitsu gains the upper hand in their fight.

Blood from the Mouth: Whilst fighting the Older Brother Spider Demon, Zenitsu was poisoned and went through great stress to prepare his Thunder Breathing technique to the point he vomited some blood in the middle of his struggle; way later in the series during a comedic extra story Zenitsu vomits blood in pure excitement, as he sees Nezuko wearing a swimsuit, comically dying in the process, it's just a fun extra page though so obviously Zenitsu does not actually die for real.

Body Horror: In his bout against one of the spider family demons Zenitsu gets inflicted with a demonic art meant to mutate his body into a demonic spider creature, Zenitsu's arm begins to mutate but in desperation he finds strength to defeat the demon, he then gets rescued and put under intense care to heal his arm which by then had shrunk, starting to mutate into spider claws, in the aftermath however Zenitsu is fully healed.

Brilliant, but Lazy: Turns out to be a faster learner than Tanjiro, but only with the incentive of getting to hang out with pretty girls. Not to mention he invents a new Technique for Thunder Breathing.

Broken Pedestal: His former superior Kaigaku becoming a demon really, really makes him lose all admiration for him.

Butt-Monkey: Due his cowardly and negative forefront personality Zenitsu tends to fall in embarrassing situations due being the first to complain about the current situation he or the group find themselves in, the team going undercover in a Red Light District shows Zenitsu getting the short end of the stick pretty well.

Can't Act Perverted Toward a Love Interest: Zenitsu in his desperate attempt to get married as quickly as possible often literally throws himself on women begging for them to marry him, usually in a comedic manner, and at one other time he has proclaimed really well his love for a woman's curves; with Nezuko however he is quite tame, his crush on her is quite the puppy love, innocently presenting her with flowers included.

Canon Immigrant: Zenitsu is shown to have the artisan ability of making flower crowns in the Light Novels, he of course wants to give one to Nezuko; that happens in the manga at the very end, little epilogue panels in the final chapter show Zenitsu making one for Nezuko, it is the only legitimate way he can actually court her without embarrassing himself.

Casanova Wannabe: Hits on girls frequently but unsuccessfully, and often tries to charm Nezuko.

Character Development: Used to think small, as in he only wanted to show off as a demon slayer if it could make him the center of attention, especially with girls; later on Zenitsu starts to have more serious goals of becoming strong enough to be able to protect as many people as he can. And when his beloved master is forced to commit Seppuku in shame for another pupil of his betraying the Corps to become a demon, Zenitsu actually starts having a clear goal of wanting to become the Thunder Hashira like his master once was.

Characterization Marches On: His attempts to charm girls are phased out as the series progresses, and instead focuses the humor on Zenitsu's jealousy of the mere prospect of someone having a girl while he doesn't, and his freak-outs over harsh demon-slaying training sessions. It can be implied Zenitsu just sort of decided to make Nezuko his main goal, but the series doesn't actually show him making the resolve of forsaking chasing after someone else, and even after meeting Nezuko he tried to charm the Butterfly Estate girls. After that, though, Zenitsu isn't seen trying to charm girls other than Nezuko ever again. note

Charged Attack: Can only use his strongest 1st Form variation, Thunderclap Flash: Godspeed, twice in a day; however, by the end of series, Zenitsu has honed the ability further, being able to use it more than twice in a day.

Chivalrous Pervert: Zenitsu's colorful rant about women and their curves gave him a bad first impression with the Butterfly Estate girls, but Zenitsu is actually seriously commited to the idea of marrying someone fully intent on loving them, even when it made him suffer, as in the past there were women who entertained him, with bad intentions, like the unknown woman whom Zenitsu had eloped with and piled him with debts, where he had to be rescued by his future swordsman master, prior the beginning of the series.

City Mouse: The Databook reveals Zenitsu was born near Tokyo, and he's generally in touch with modern society and the industrial advancements of early 20th century Japan. This puts him in contrast with Country Mouse Tanjiro and Wild Child Inosuke, especially when he's the only one of them who actually knows what a train is.

Contagious Heroism: Zenitsu was more of a reluctant coward before meeting Tanjiro, the guy always had some goodness in him but his willingness to act was less prominent, with Zenitsu wanting to avoid danger as much as he could, needing some push for him to act as a hero; working with Tanjiro most of the time, however, has made Zenitsu grow quicker to act on behalf of others as walking with Tanjiro has made him face more danger than he likely would if they never became friends.

Coordinated Clothes: The haori Zenitsu wears was given to him by his master Jigoro, they both wear the same triangular symbols pattern; a later series volume extra information makes it more of a bigger deal as it directly differentiates Zenitsu and Kaigaku's views on their master, Zenitsu chose to wear what was gifted to him, while Kaigaku was also given the same haori but he didn't even wear it, this shows which disciple really respected their master.

Costume Evolution: After all is said and done, by the very end of the series Zenitsu takes upon wearing his beloved master's haori, a simple and clear way to show Zenitsu has finally succeeded Jigoro's wishes.

Cowardly Lion: The actual core of Zenitsu's character; on the surface he is cowardly, is always complaining about something, screaming at the top of his lungs that he should just run away and give up on being a demon slayer, turns out that despite of all his incessant tantrums Zenitsu never actually runs from the heat of battle, to the point he just developed a kind of trance sleep mode where he can bravely fight against his foes while being somewhat unconscious thus unable to fear what is in front of him, and as the series progresses Zenitsu becomes able to fight more as himself instead of always relying on his trance mode.

Crazy Jealous Guy: Comically becomes one towards Nezuko after finding out about her, to the point where he attacks her own brother due to a misunderstanding and later has an urge to kill Inosuke after Nezuko mistakenly calls Zenitsu by the former's name.

Crippling Overspecialization: Can only use one Thunder Breathing technique (the basic technique), but he is very adept at it, to the point he developed phases for it: Thunderclap Flash -> Six-Fold -> Eight-Fold -> Godspeed.

Crouching Moron, Hidden Badass: He's usually a wimp, but when he can still pull through when things get bad.

Crush Blush: Zenitsu does this a lot when it comes to Nezuko, from innocently presenting her with a flower to going full tomato red face in his dreams where Nezuko can actually speak normally and reciprocate his advances. His dreams sort of come true when he sees Nezuko finally speaking and thinks she did it for his sake. Of course, she currently isn't able to speak in full sentences, and she ends up breaking his heart by accidentally calling him Inosuke.

Curtains Match the Window: While this is a theme with several other characters in the series, Zenitsu is the one that sticks out the most, his whole yellow thunder theme is all over his design, blond hair, gold eyes, yellow coat and yellow tint on his nichirin blade.

Deadpan Snarker: Zenitsu does not buy into Tengen's flamboyancy, immediately thinking Tengen is completely mental for his extreme personality and demanding to be worshipped as the god of festivities and flamboyancy, insulting Tengen with sarcastic thoughts. It goes into greater sarcasm against Kaigaku, whom Zenitsu finally talks back to, Zenitsu showers Kaigaku with insults as the disciple who could never learn the first Thunder Breathing form and who couldn't be a successor to their master.

Death-or-Glory Attack: The ultimate variation of his Thunderclap and Flash technique, God Speed, is so powerful and ridiculously fast that Zenitsu claims using it more than twice in a day will render his legs completely useless, the strain on his muscles and bones is just too great; even the results of keeping it in the twice-a-day limit is very dangerous, Zenitsu felt as if his legs were broken after the fact. The only thing Zenitsu could do to improve the usage of God Speed, later in the series, is just shape himself up so he can use more than twice in a day, the drawback never really goes away.

Declaration of Protection: Zenitsu in his never-ending quest to try get himself a lover, self-declares himself to be Nezuko's protector as soon as he finds out she is a harmless demon and sister of his newfound good friend Tanjiro, as he thinks she should be protected at all costs; this is mostly used as a comic motivator for Zenitsu to get up and do his job as a demon slayer and to train harder, in a fight against the Lower Rank One however this is applied seriously, with Zenitsu actually speaking to Nezuko in his trance mode that he will protect her, shielding her from the Lower Rank's attacks as she was fighting alone till then.

Desperately Craves Affection: An integral part of his character, used for both comedic and dramatic effect, as Zenitsu grew up as a lonely orphan nurturing a strong need of belonging, wanting to be needed by those around him and eventually be loved by a significant other. Early on this is shown in his comedic failed attempts to charm girls, while the dramatic side is shown through all the challenges Zenitsu is pushed to overcome his flaws, like his cowardly behavior, in order to grow as a demon slayer, hoping others will appreciate him as their hero.

Disguised in Drag: To spare Aoi from being forcefully drafted into Tengen's mission of infiltrating a Red-Light District to rescue his contacts (his 3 wives) and exterminate a demon all three boys volunteer to take the mission in her place, but since Tengen really needed female slayers he forces the trio to disguise themselves as girls and apply themselves as courtesans. Zenitsu is the one who stands out the most due circumstances forcing him to go throughout the entire event dressed like a girl, while everyone else had already broken off the disguise during the nerve-wracking fight against the demons.

The Dulcinea Effect: If Zenitsu can't muster the inner courage he has to surpass all of his cowardice on the surface, a good way to make him focus and be brave, or at least try to, is finding himself in a situation where there's a woman in peril. Zenitsu will then stop his complaining right away and go for the rescue.

Elemental Hair Colors: Downplayed since he doesn't have electricity powers (though Zenitsu got his blond hair color after being struck by lightning), but he is the primary Thunder Breathing user in the story and has blond hair to match.

Establishing Character Moment: His proper character introduction gives all the foundation of Zenitsu's character, the bad and the good in him:

1) He is desperate to find himself a lover and marry right away.

2) He is quite easily scared and overreacts to near everything; upon close inspection, however, Zenitsu never skips on his fights when the chips are down.

3) Zenitsu says he is weak and needs to be protected, while, in fact, his strength is pure speed; his fight record and achievements do not lag behind any of his friends.

4) His tantrums makes it seem he only cares about himself, in truth Zenitsu is faithful and shows immense gratitude when he protected Tanjiro's box, Zenitsu had only just gotten close to Tanjiro, and by then he had no idea what actually was inside the box, all Zenitsu knew it was important to Tanjiro, so he protected it with his own body as a shield.

Fast as Lightning: Thunder Breathing is a swordsmanship style used by Zenitsu that channels strength into his legs, allowing him to dash at incredible speed to slash enemies with the visual effect of lightning.

Finishing Move: The Thunder Clap Flash is the only form Zenitsu has managed to learn in his Thunder Breathing style, but he has mastered it to an extreme degree where his one move is pretty much the battle finisher as Zenitsu created several phases within the technique to make the Thunder Clap Flash as powerful as he can possibly make it out to be; Zenitsu later creates a technique all by himself, the 7th Thunder Breathing form: Flaming Thunder God which is pretty much a certified battle destroyer move.

Flash Step: The main application of the Thunder Breathing style, while all demon slayers must be fast to move and quick to draw their blades a Thunder Breathing user will go beyond that and be ridiculously fast to the point even demons will be surprised by their speed, Zenitsu is so adept at the only real Thunder Breathing technique he mastered that it makes him lightning-fast to incapacitate and kill demons, making up for the lack of skill in the other Thunder Breathing forms.

Flower Motifs: In an author's description of Nezuko's thoughts on Zenitsu, Gotouge Koyoharu has stated that Nezuko, in her childlike mind, innocently sees Zenitsu as a funny-looking dandelion; Zenitsu's supernatural blond hair, and the way it stylized, does pass said impression.

Fragile Speedster: The one Thunder Breathing technique he can use makes him incredibly fast, but he lacks in other departments. The Flaming Thunder God technique, however, is both fast and powerful enough to slice through an Upper Rank's neck.

Friendless Background: A crucial point of his backstory, Zenitsu had no true friends before meeting Tanjiro, the guy really had a need to belong since he had no family, which prompted himself to try being part of any group of people when he was younger, however, Zenitsu's cowardly and crybaby moods either quickly made others want to stay away from him, or fake tolerance to later scam him. Nobody before his master, and later Tanjiro, bothered to notice Zenitsu's good qualities beyond his apparent faults.

Friendly Rivalry: Tragically ends up as only one part thinking it had any friendship in-between, Zenitsu admired Kaigaku as his colleague in training despite all the volley of insults the two threw at each other, turns out Kaigaku really hated Zenitsu and betrayed their master to seek more power as a demon, then mocking their master's suicide by Seppuku in order to atone for Kaigaku's betrayal, that made Zenitsu lose all of the little respect he had for Kaigaku, fighting and killing him.

Glowing Eyes of Doom: The anime adaptation added more fanfare to Zenitsu's absolute body stress to initiate the steps to augment the power of his Thunderclap Flash attack, in the manga it showed white eyes, the anime made it go white and then added glowing effects of light and thunder.

Green-Eyed Monster: Admits that he was more infuriated about the fact Tengen is quite the handsome man, and has three beautiful wives, than being forced to disguise himself as a female courtesan for their covert demon slaying mission, that however is Played for Laughs and is just one of the many times Zenitsu sees, or simply mistakes, other men having better luck with women than him.

Grew a Spine: The conclusion of his character arc; Zenitsu finally forces himself to grow out of his self-deprecating mental abyss, forsaking his sleep trance mode entirely, when the tragedy of his master's death strikes, going on to face the cause of said tragedy in the form of his former fellow disciple, Kaigaku, who now turned into a demon, traitor of the demon slayers; Zenitsu faces Kaigaku head on, and kills him, the older disciple whom Zenitsu was completely submissive to before due seeing himself as inferior and partially out of respect, despite their differences Zenitsu still wanted to see him as a brother before everything went south.

Happily Adopted: Having no parents and living an early life where he tried to make a living by walking in groups of equally aimless orphans, then getting saddled with a woman piled with debts, Zenitsu was taken in by a swordsman demon-slaying master; Zenitsu grew fondly of him, going on to affectionally call him grandpa.

Heroic Second Wind: Pretty much what Zenitsu's sleep trance mode amounts to, Zenitsu at first will seem completely harmless as a demon slayer, cowering and screaming his lungs out about how he cannot perform his duties properly; the demon will buy into Zenitsu's apparent incompetence, underestimating Zenitsu's capabilities and going for the seemly easy kill, Zenitsu may suffer some initial damage but then falls asleep, his trance mode kicks in and the battle pretty much turns on Zenitsu's favor with the demon in complete disbelief on how the apparent weakling suddenly became so strong; as the series progresses Zenitsu starts talking while in his sleep trance mode, showing his personality also gains a huge confidence boost, it tops off with Zenitsu not needing his trance mode anymore, he becomes confident enough to fight his battles with his eyes open.

Heroic Self-Deprecation: The darker side of his need for validation from those around him, Zenitsu harbors some deep self-esteem issues from his past where he quite never found a group of friends he truly belonged to, feeling he was useless and then getting called as such after being abandoned by past acquaintances, Zenitsu started to believe he really doesn't amount to anything as a person and only kept taking the path of the sword out of respect for his master and the waning hope that maybe someday someone will see him as their hero.

Hidden Depths:

Is much more familiar with the advancements of the wider world than one would think. For example, when boarding a train for the first time Zenitsu is the only one to know what it is, while Inosuke takes it to be the "master of the land" and tries to fight it while Tanjiro (a "country bumpkin" in Zenitsu's own words) reasons that it could be a guardian spirit. A volume's extra illustration comically shows the trio's reaction towards Tengen revealing that his mission would take place in a Red Light District; naturally Tanjiro and Inosuke have no reaction as they have no idea what that place means, Zenitsu, on the other hand, is fully red and fidgety upon hearing it and awkwardly asking both unamused boys how can they not know what a Red Light District is.

Because of his enhanced sense of hearing, he's an incredibly good musician who can play back any song after hearing it once.

Beneath his insufferable behavior and lecherousness, Zenitsu is a profoundly sweet young man, this being the reason why the people that know him are tremendously fond of him.

His Own Worst Enemy: Zenitsu is too obsessive, grabby and clingy for the comfort of the women he meets. As he approaches women with unbound zeal and behaves like a showoff, instead of approaching out of a sincere drive to help and sympathize (like Tanjiro does), said women generally dislike him. Sure, he's a nice guy... but he's no gentleman.

Holier Than Thou: Played With. While not outright stated, he feels he is more moral compared to others and constantly chastises his comrades for their antics, yet he does things that are more or less far from moral, in other words, he displays self-righteous behaviors, such as trying to propose a girl in a desperate way, creeping them out, and blame others for things that either aren't their fault or have little control of, and is even quick to assume the worst of them. When he found out that the demon Tanjiro was carrying was a cute girl named Nezuko (who was also his sister), his first assumption was that he was all lovey-dovey with her, and began to attack and scream at him for it without giving him a chance to explain.

Hypocritical Heartwarming: In a flashback, Zenitsu got into a fight with some fellow Demon Slayers when they mocked Kaigaku for not being able to perform the first form of Thunder Breathing. Zenitsu never liked Kaigaku, but he did respect him, at least before he found out Kaigaku became a demon and caused Jigoro to commit seppuku.

Hypocritical Humor: Another source of the comedy attempts on Zenitsu's behalf, it gets explored more once his cowardly lion antics start to take a back seat; Zenitsu freaks out when other people do, or he mistakes them as doing it, exactly what he himself would like to do, as in Zenitsu throws himself on a random girl imploring she marries him, when he is on demon-slaying duty, but loses his mind when he mistook Tanjiro and Nezuko as a pair of lovers instead of siblings, babbling about the serious duty that is demon-slaying, so fooling around in love is taking their duty lightly; he repeats this episode at the beginning of the Red Light District arc, mistaking the recon and rescue mission as Uzui wanting to score himself a woman to have as his wife.

Iaijutsu Practitioner: At least when he's asleep, Zenitsu can draw his sword, slice, and sheathe it so fast that you can barely even see it leave the scabbard, as seen during his "fight" against the tongue demon: one moment, Zenitsu's hand slightly twitches and exposes only a tiny bit of the blade, the very next instant, the demon's tongue is already severed. He then finishes things off by combining this with a Flash Step to decapitate his foe.

I Just Want to Be Loved: A place to belong with people who wish good things upon him, that's what Zenitsu wanted as he laments never having a place to himself by being orphaned, possibly abandoned at birth, and no one ever expecting anything out of him, labeling him as worthless; Zenitsu felt prey to people in the past who took advantage of his need to belong by faking a bond with him, using and abusing the guy. However that's all in the past as Zenitsu realizes that meeting with his master, Jigoro, changed that situation, with his master he found a place to be and someone who honestly wished him good, and that extends, even more, when Zenitsu finds Tanjiro, Nezuko and Inosuke, his honest friends.

I Just Want to Be Normal: While Zenitsu has an inner dream where everyone sees him as a hero who can be relied on to always protect them, thus being a wish of someone who wants to be special in the end, the boy used to gravitate mostly towards thinking that the demon-slaying life really isn't for a person like him, asserting that a normal, humble life where he lives quietly and builds a family is the best outcome he could ever hope to achieve.

I Just Want to Be Special: His life as an underachiever who could never really make real friends, or ever be center of attention, left Zenitsu with a burning desire that for a person like him only becoming someone special could make people truly like his company; special in Zenitsu's case means becoming a demon slayer who can defeat any nemesis and be loved by people everywhere he goes, this desire of his clashes directly with how much of a negative person he is towards himself, while deep down Zenitsu wants to reach greater heights, on the surface he thinks of himself as someone who will just die at every demon encounter thus having any aspirations would be a waste.

Imagine Spot: In the second Light Novel during the event in which Tengen, Zenitsu, and Inosuke go to the Hot Springs, Zenitsu wastes no time imagining in vivid detail how Tengen's wives, Hinatsuru, Suma and Makio, would take baths together.

Informed Ability: At the height of Zenitsu's supernatural hearing, it was stated he can even hear someone else's thoughts, however, that is never put on display throughout the series; the best showcase of Zenitsu's hearing is him being able to somehow "hear" how good a person is through their body movements, speech and breathing, that's how Zenitsu devoted himself to Tanjiro as a great friend.

Informed Flaw: During the curse induced dreams the heroes have against the Lower Rank One fight, Zenitsu appears like a caricature of himself in Kyojuro and Inosuke's dreams as a stereotypical man with overbite teeth formation in a very exaggerated manner, that contrasts greatly with his normal appearance where no flaws in his face can be seen, and that would be ok since those were just illusionary versions of Zenitsu, however in a volume extra the author does say Zenitsu really has overbite, but outside the caricature version of him it just can't be seen.

It's All My Fault: After defeating Kaigaku, in his near-death vision of the afterlife, Zenitsu talks with his master one last time, blaming himself for his master's seppuku in atonement for Kaigaku's betrayal and for the latter's betraying them in first place; Zenitsu reasons that if he wasn't such a coward and an incompetent disciple he wouldn't have brought shame to his master, that if he was as good as Kaigaku their master wouldn't have felt the need to try to atone for one of his best disciples turning over to the demons. The master however doesn't agree with Zenitsu, honestly believing Zenitsu has always been his pride and joy, as previous flashbacks shows the master supporting Zenitsu at every turn, even if he tried to run or cry, the master saw through Zenitsu's layers in that beneath all the apparent fear the boy never actually stopped trying to make through the master's training regime, all paying off with Zenitsu defeating Kaigaku who was seen as the much stronger disciple by others.

Large Ham: Zenitsu is 120% committed to honestly expressing what he feels, when he feels, by screaming it on top of his lungs.

Let's Get Dangerous!: He completely drops his usual cowardice when facing his treacherous former fellow pupil Kaigaku and showcases that he's a true heir to the Thunder Breathing techniques.

Lightning Can Do Anything: Apparently lightning can grant permanent perfect hair dyes. Zenitsu who was once black-haired got a free dye job from a lightning bolt striking him, turning him permanently blond.

Locked into Strangeness: Used to have black hair until a bolt of lightning struck him, somehow permanently turning his hair blond. The official High School A.U. has Giyu telling him to dye it black since dyed blond hair isn't allowed at school.

Lovable Coward: Despite always being terrified, he always jumps to save his friends.

Love Martyr: Thankfully for Zenitsu this is just a small part of his backstory, and he isn't exploited again in current events; due his ongoing gag of wanting a girl to marry him Zenitsu has actually found some women in the past that pretended to entertain him instead of just rejecting his desperate advances like the comedic side of his attempts usually go, those past women all tricked Zenitsu and never stuck with him, he knew those women were bad but he really wanted to have someone by his side, fearing he will die alone as an orphan since childhood.

Meaningful Name: His given and family names are rooted in his character:

Zenitsu means "goodness", shedding light on his deeply good natured personality underneath his apparent immediate flaws such as his whininess and cowardice.

Zenitsu's family name, Agatsuma (我妻), can be read as Wagatsuma meaning "My Wife", it can be related to the running gag of Zenitsu being desperate to find himself a wife, as he sometimes upstages his attempts at charming girls with the immediate proposal of marriage.

Metallic Motifs: A blade, katana in particular, Zenitsu was motivated by his master Jigoro to be like a blade during its forging, to constantly be purified and focused on the one thing it matters: mastering yourself to eventually become unbreakable steel. Zenitsu's development as a demon slayer goes exactly like the katana forging process; his Thunder Clap and Flash technique even has an added deeper meaning to its stronger forms, Zenitsu literally calls them "Folds", not only he is folding the angles of his dashing but also "folding himself" like forgery processing, making him, the blade, a better molten steel. At the end, to hit the point home, Zentisu's actual nichirin blade is the only one out of his companions Tanjiro and Inosuke that never breaks throughout the series.

Mood-Swinger: Played for Laughs whenever a scene calls for getting Zenitsu out of his comfort zone, that is getting him to go through a demon-slaying mission despite his cowardly tantrums, Zenitsu will go from a seemly well behaved person to an incredibly nervous train wreck, yelling at the top of his lungs about how he is going to die at any second; another is getting him to train under a deadly regime, Zenitsu will immediately lose his mind and curse whoever thought of planning that training session, and when Tanjiro is there to make a counterpoint about how a deadly regime can get them better results at getting stronger, Zenitsu will unleash his fury at someone he once said was his great friend, only to pull a complete 180 degree turn on Tanjiro once he praises Zenitsu for being an important reference to others training as well, making Zenitsu then think his presence at the program really is necessary and that training isn't so bad after all.

Motor Mouth: In his fits of rage over attracting girls or believing someone else has a girlfriend, he'll start delivering huge speeches over how they're scum, according to himself, and that they should be ashamed. If you try to interrupt him, he'll get even louder.

Multicolored Hair: He has blond hair with orange ends.

Mundane Utility: Zenitsu's superhuman sense of hearing came in very handy during the undercover investigation in the Red Light District arc, as he disguised as a cross-dressed courtesan didn't quite have the looks to pass himself as a beautiful woman but could still entertain guests with his Shamisen playing skills, his super-hearing could make him be fully capable of playing any song he had heard just once, as the sounds are perfectly ingrained in his memory.

Mysterious Past: In contrast to his fellow main characters, Zenitsu's past isn't shown in much detail, and anything before his life as a young child who lived among wandering children is completely nebulous. The first databook reveals Zenitsu was born near Tokyo, but who his birth parents were, why they abandoned him, or who actually named him isn't ever disclosed. The second databook released after the series' end, which contains specific family trees for the characters, follows with not saying anything about Zenitsu's birth parents, it simply states he was born out of a father and a mother, both nameless factors; in the end Zenitsu's story was truly about the destination, his birth parents truly may be completely irrelevant, just another case of child abandonment.

Near-Death Experience: In the aftermath of Zenitsu's winning bout against Kaigaku he has a vision of the river of death, Zenitsu sees his beloved master on the other side, Zenitsu apologizes for not being a good pupil and preventing his death. The master, however, cries tears of joy and tells Zenitsu he has always been his pride and joy. Zenitsu tries to cross the river to his master's side, but spider lilies bind his feet, preventing him from crossing over, symbolizing how it's not Zenitsu's time just yet, before he gets reanimated back to life.

Necessary Drawback: As the series progresses Zenitsu steadily becomes one of the fastest beings in the story, but the drawbacks of his Thunder Breathing techniques never fade away, Zenitsu only works around making the extreme muscle fatigue on his legs take longer to kick in after continuous usage of his abilities; that limitation is put into place so Zenitsu doesn't become an untouchable speedster without limits, otherwise he would be an unparalleled demon slayer, with very few equals.

Nervous Wreck: Zenitsu is a capable guy when he finds the courage to brave through killing demons, or just resorts to his trance sleep mode where he fights in a state where fearing the enemy isn't possible, but he tends to freak out like no tomorrow at every single thing before he shows his true colors.

Nice Guy: Don't let his apparent cowardly antics fool you, Zenitsu is actually just as much of a nice guy as the ever selfless Tanjiro is; Zenitsu has gone on record of being nice to people he had only met for minutes at most, and being good to people he actually knew didn't even like him because Zenitsu just wanted things to be better, and even Inosuke whom he is always butting heads with, Zenitsu tried to cheer him up along with Tanjiro after the Spider Family fight left Inosuke feeling he was weak and useless.

No Indoor Voice: While nowhere as constant as Inosuke is about this trope, Zenitsu gets loud when he vocally expresses subjects he is passionate about, specifically pertaining to pretty girls.

No Listening Skills: Despite his enhanced hearing, he is hardly a very attentive listener. He often speaks and screams non-stop even when told to. In his jealous state, he completely stops listening to reason. He insists he has any say, while he refuses to let anyone who attract girls or he thinks they are flirting with someone talk, even telling them they are fantasing when he is told the true version of the story, despite being the one who is overthinking. When he saw Nezuko for first time, he didn't listen to Tanjiro trying to tell him she is his younger sister who was turned into a demon the night his family was murdered, trying to kill him, thinking she was his girlfriend. When Tengen tasked the trio to help him infiltrate the Red District, he didn't listen to Tengen telling him he sent certain people (his wives) to infiltrate there to hunt a demon, assuming he asked the trio for help to find a bride, despite being already married, even telling him he is fantasing everything when he told part of the real version of his story, much to Tengen's annoyance.

No Respect Guy: In spite of his relatively equal level to Tanjiro, he gets no recognition for his merits (especially from girls) because he's lazy, complacent, wimpy and cowardly. He's a good guy and an excellent warrior, but he's incredibly annoying.

Noodle Incident: Zenitsu's troubled past with people who took advantage of his desperate sense of belonging is never explored in detail, he alluded to in a single sentence during the Drum House arc that there were vixens other than the woman he eloped with before that were just as bad, if not worse, in abusing his goodwill. Said past trauma is never brought up again, not even in other publications.

Not a Morning Person: A tiny bit of information contained in one of the Extra chapters published with the 2nd Fanbook, after the manga ended; Tanjiro informs that Zenitsu at first had to adjust himself to the early morning routine of the Kamado family after he moved into their home at the end; since Inosuke has always been a mountain boy he didn't have the same morning issue.

Offscreen Moment of Awesome: A few moments where Zenitsu uses his body to protect others take place completely offscreen, the first being where he saves Shoichi from a fall out of the Drum House's upper floor, Zenitsu apparently saved the boy and hit his own head in the process, bleeding from the concussion; another is during the Mugen Train arc, Zenitsu saved Nezuko and a few passengers by embracing them and taking everyone out of the colliding train after Enmu's defeat, yet again hitting his head hard, bleeding from the impact.

One-Hit Kill: with Zenitsu's signature Iaijutsu discipline for his Thunder Breathing, his fights against demons who don't measure up to him usually end in a single attack of his, a swift slice through the neck, instant decapitation.

OOC Is Serious Business: He completely drops his normal cowardly attitude when confronting Kaigaku for becoming a demon, causing their master to commit seppuku alone and leading him to die a slow and agonizing death.

Parental Abandonment: It was briefly touched upon that Zenitsu has no parents, although it hasn't been revealed whether they abandoned him or they died (though Zenitsu believes they abandoned himnote ). After living a harsh early life Zenitsu was taken in by his Demon Slayer master, who Zenitsu views as his grandpa.

Prone to Tears: Boy does he ever, it is mostly used in comedic effect to either show Zenitsu reacting to being rejected by a woman for the umpteenth time or his crushing fear of fighting against demons while being a professional demon slayer himself; however, there are memorable times where his tears were used for dramatic and awesome moments.

Rage Breaking Point: Zenitsu had a very subservient relationship with his elder colleague disciple Kaigaku, the latter couldn't stand the former's presence due Zenitsu's difficult behavior as someone with low self-esteem who seemly wasn't showing much progress while being trained under the same master, even so Zenitsu tried to make things work with Kaigaku by respecting him; all goes down south when Kaigaku betrays the demon slayers to become a demon himself and as a form of atonement their master commits seppuku to pay the price of shame, with that Zenitsu loses all little respect he had for Kaigaku and showers him with insults and hard truths in their fight to the death, to the point Kaigaku even sarcastically compliments Zenitsu for finally talking back to him.

Rank Up: Zenitsu starts his career as a Demon Slayer as the lowest 10th rank, Mizunoto, after the Mugen Train arc he rises to Kanoe, 7th rank; the Infinity Castle arc starts with him as Hinoe, 3rd rank, three steps away from becoming Hashira, which is only revealed in the 2nd Databook.

Rousing Speech: In the later moments of Muzan's fight, in the Infinity Castle arc, after many slayers have been battered up to near-death, and Tanjiro had just been hit by a powerful shockwave emitted by Muzan, everything looks dire; Zenitsu steps up to save Inosuke from an attack and pushes himself to lift Tanjiro's morale up, as the latter laid down in almost a convulsion state, telling him that he cannot die, Tanjiro has to live through that incredibly deadly fight and go home with Nezuko, who had just turned human, Zenitsu being alive and boosting his morale moves Tanjiro to tears. Zenitsu who was once a cowardly slayer, who had to be pushed over the edge and motivated to fight, now steps up on behalf of others, motivating them as well.

Running Gag: At first it seems the jokes on Zenitsu's behalf are those played upon his cowardice and wanting to score a girl, in truth it is his extreme mood swings that form a circle around all the attempted humor with his character; coward tantrums, wanting to impress a girl, losing his cool over harsh training sessions, having little patience for eccentric personalities (while he is one to talk), jealousy of others having a mate, all of that is to instigate an extreme chain reaction of emotions on Zenitsu.

Sad Clown: Though hammy and emotional on the outside, when one of Enmu's henchmen breached Zenitsu's subconcious, it was a pitch black blank devoid of any hopes and dreams made manifest like the subconciousness of Rengoku, Tanjiro and Inosuke's. A life of abandonment, loss & betrayal had left Zenitsu's heart so hollow and bereft of hope for the future, all he has to live for is the present; until he met Nezuko.

Screams Like a Little Girl: Part and parcel with his No Indoor Voice and Large Ham personality, Zenitsu screams every emotion on the top of his lungs, especially when he is terrified. It's a testament to the skill, comedic timing and vocal-chord strength of Hiro Shimono that he has not lost his voice after his introduction arc.

Selective Obliviousness: Jumps to conclusions when he sees Nezuko for the first time, attacking Tanjiro believing that she was his lover. Once he learns she is his sister, his treatment of him was never brought up.

Serial Romeo: Zenitsu immediately forgets about the previous woman he desperately asked to marry him upon finding a new target; the only one he hasn't let go is Nezuko, partially because he might like her more than his usual crushes on first sight and that Nezuko is a nice demon girl in a state of mind where she really can't decide or understand complex things yet, she is just nice enough not to repudiate Zenitsu on sight.

Shock and Awe: Thunder Breathing adepts have lightning sparks all over their techniques, Zenitsu is given more fanfare due to how much he overexerts his usage of the Thunderclap Flash; however, all the lightning is just a visual effect of portraying elemental affinity to the technique's main aspect, speed. That said, the times where Zenitsu used his technique to its fullest potential at given points in the story, it was noted a sound "like thunder" could be heard coming from his actions, implying Zenitsu is actually breaking speed barriers when he goes all out.

Shown Their Work: Zenitsu's strongest attack shows Gotouge did the proper homework on the effects of such insane speed, the 7th Form: Honoikazuchi no Kami has Zenitsu's haori starting to be thorn apart on his way to behead Kaigaku, showcasing just how fast Zenitsu is at that moment, guaranteed super sonic speed at the bare minimum, in order for the air friction to start burning his clothes off.

Significant Wardrobe Shift: Zenitsu at the beginning of the story was a meek, whining and reluctant demon slayer, he only became a warrior to show gratitude towards his master Jigoro, who once saved him, wearing a bright yellow haori, given to him by Jigoro which is themed after his own haori. In the very end of the series Zenitsu takes up his master's haori, who died before Zentisu could show how much stronger and courageous he grew to be, but Jigoro could see that from the afterlife, personally congratulating his pupil, thus Zenitsu has successfully inherited his master's will after he has helped to kill the source of all demons.

Single-Stroke Battle: When Zenitsu fights against weaker demons it goes accordingly to the theme more precisely, in one single stroke of his Thunder Breathing Style, which invokes an Iaijutsu discipline, Zenitsu quickly dispatches the foe with a swift slash to the throat; on longer battles however Zenitsu tries to charge his speed to a ludicrous degree till he blitzes through the area, all to find that sweet spot to behead the enemy.

The Slacker: In Zenitsu's case it is more of a combination of his bad self-esteem and fear of getting hurt in any way possible, so he hates any kind of training that will force him to put more effort than he personally would like to give, with that Zenitsu must really be coerced in a way that will make him go through it even if complaining along the way, two popular methods are he himself feeding on his dreams that getting stronger will make Nezuko fall for him, and the other is filling him with praise, Tanjiro honestly believes in Zenitsu so that usually works, but also Shinobu pretended to cheer Zenitsu up to get him going. The tragedy with his master's death made Zenitsu be serious about his training and future without others forcing him, however.

Sleepwalking: Except with fighting. He fights with pure instinct when unconscious.

The So-Called Coward: His constant cowering against having to face demons in battle already looks odd enough due Zenitsu never actually running away from his duties as a demon slayer, crying on the way to battle but still fighting nonetheless; the full realization comes when Zenitsu's rivalry with a former colleague of his comes into play, Kaigaku was said to be Zenitsu's total opposite, he actually learned most of the Thunder Breathing forms and always made sure to brush on Zenitsu's face how much of a failure and a coward he was, but in the end it was Zenitsu who stuck to the Demon Slayer corps always fighting against demons, while Kaigaku was revealed to be a true coward who immediately threw his life away for more power as a demon; resulting in Zenitsu killing his supposed stronger colleague turned traitor.

Spell My Name with an "S": While Zenitsu is the most common way his name has been spelled for western audiences, a more proper romanization would be Zen'itsu to indicate its correct pronunciation, there's emphasis on the Zen (Zen - i - tsu) instead of saying it like Ze - ni - tsu. Then there's the author herself trying to give it an original spin, Gotouge has said the emphasis on the "tsu" should be bigger than on "Zen".

Split Personality: A downplayed example; Zenitsu at first glance is cowardly and whiny, however, the sleep trance he developed for unconscious combat is pretty much the ideal version of himself that Zenitsu dreams, but thinks it is impossible, of becoming. In later events when Zenitsu starts talking during his trance, he is shown to be very brave and just, fully in tune with all the results of his Thunder Breathing training, in this state Zenitsu remembers everything that happened while he was awake, meanwhile the normal Zenitsu does not remember what he did during his trance, furthering his own perception that he is weak and worthless. In truth awake Zenitsu and trance Zenitsu are the same person, it's only that during sleep Zenitsu removes all of his immediate flaws, which eventually reaches the natural conclusion of Zenitsu forsaking the need of his trance, becoming a hero fully aware of himself.

Super Hearing: His hearing is very acute, and he can even tell people apart by the way their bodies sound.

Super Speed: While the most capable Demon Slayers have superhuman speed by default - they couldn't keep up with the much stronger demons if they didn't - Thunder Breathing adepts are on a tier of their own. At the peak of their abilities even demons cannot keep up with their speed; Zenitsu, when he gets serious, moves so incredibly fast that even two Upper Ranks were not able to follow him at all.

This Is Unforgivable!: Zenitsu was absolutely pissed at Kaigaku for becoming a demon, resulting in his master committing suicide to atone.

Through His Stomach: Comically asked Nezuko to marry him on the prospect of feeding her Sushi and Eel every day, which resulted in a failed attempt because Nezuko's mind as a demon was not able to understand what Zenitsu was proposing on that event. Plus, Zenitsu's attempt gets ruined when Nezuko calls him "Inosuke".

Throw the Dog a Bone: It seems like he and Nezuko do hook up after the fight with Muzan, seeing as how their descendants in Modern Day Tokyo bear a resemblance to him and her.

Too Kinky to Torture: As long as the one doing the "Torture" is female, he won't mind at all.

a shining example is the fight against his former colleague pupil, Kaigaku, who betrayed their master and team by turning into the very demon kin they are supposed to hunt, Zenitsu fought against someone who was touted as superior to him as a human, then becoming a demon even more powerful than a regular demon, and Zenitsu actually won. Zenitsu has even toughened up to fight against Took a Level in Badass: As the series progresses Zenitsu starts having more battles in which he doesn't cower into his sleep trance mode to fight without fearing his opponent; Muzan in his strongest form and managed to damage Muzan for everyone fighting him.

Unconscious Objector: Zenitsu has defeated enemies while unconscious.

Undying Loyalty: The shining quality that makes Zenitsu stand out beyond his apparent cowardly and whiny behavior; Zenitsu will bury all his flaws within when it comes to giving his whole self for people who were honestly kind to him and believed he could reach greater success in life. Zenitsu is at first scared of fighting demons as he fears he could die at any moment, but Zenitsu's master trained him with so much care that he will never abandon the sword; Tanjiro is such a good-natured person that Zenitsu pretty much decided quick enough that Tanjiro is someone whom he should unquestionably trust and put his life on the line by facing all sorts of mortal battles with.

Unexpected Successor: Among Jigoro's students there was a clear divide between the eldest disciple Kaigaku and the youngest Zenitsu; Kaigaku was a seen as the much stronger one, who was keen on being Jigoro's successor, while Zenitsu had no expectations on being Jigoro's chosen one at the time, as the boy seemed to lack talent and any drive to push forward. However, throughout the series Zenitsu slowly but surely grows past his limitations, and Kaigaku turns out to be a nasty traitor who becomes a demon, who Zenitsu then kills. In the end Zenitsu wears Jigoro's haori, being his sole successor, Zenitsu himself never thought he would be the one to succeed his master.

Unlocking the Talent: Zenitsu is of the lazy and extremely self-depreciative variety, he was brought in by a sword master by pure chance, as Zenitsu was piled with debts after eloping with a woman who didn't care for him until his master rescued him from that predicament thus Zenitsu never really saw himself becoming demon slayer, it just happened. Zenitsu endured the hard training imposed on him but it seemed Zenitsu had no talent at all, he just couldn't learn any Thunder Breathing form beyond the first one, said to be the most basic and easiest to learn, however as the series progresses Zenitsu slowly but surely is pushed by those who care for him to break through his mental blocks and show that he has some talent underneath; Zenitsu has pushed the most basic Thunder Breathing form to unseen heights, making it a terrifying technique against demons, and later he creates his own form: the 7th Style - Flaming Thunder God, which is quite the battle finisher move.

Unusual Eyebrows: The forked kind.

Up to Eleven: Zenitsu is the only out of two characters in the entire series, yes even counting the Hashira, to portray an astounding feat of speed by the final arc that automatically placed him on a tier of its own in terms of pure speed, indicated by his clothes starting to rip apart due air friction during his 7th Form: Honoikazuchi no Kami, that accurately showed his speed as beyond super sonic at that moment; the only other character to show a superior feat of speed is Yoriichi, and that is the strongest character in the entire series, a borderline divine man.

When All You Have is a Hammer...: Only managed to learn one of the Breaths of Lightning techniques, Thunder Clap Flash. When that doesn't work, he just does it faster. However, he then managed to invent a seventh Thunder Breathing technique which he uses against his former superior.

Wild Take: Despite its somber tone with all the demon-slaying the series does not shy away from many comedic moments, the characters pull the most extreme face reactions imaginable, Zenitsu is the undisputed king of it as he is the resident overreacting wreck of the bunch.

Would Hit a Girl: Zenitsu's sense of justice is greater than his very pronounced love of women, he drops any pretense of holding a vow of never hitting a woman if it is a very vain, abusive courtesan who turns out to be a demon in disguise; to note Zenitsu is completely set on passing judgement on Daki for her evil deeds, to the point he never cares about how beautiful she is.

Wouldn't Hit a Girl: In his self-proclaimed status as a gentleman Zenitsu says he won't harm girls, not even throw tea on them despite it being part of the focus and agility training in his first stay at the Butterfly Manor, however this gets him no applause from Aoi, and the other girls as they overheard Zenitsu's colorful rant about women, their curves and how he longs for even catching a glimpse of them; against demons, on the other hand, Zenitsu doesn't play the gentleman card, if it's a human devouring monster Zenitsu won't care if it is female, he will go for the kill.

You Are Better Than You Think You Are: The driving force on the arduous path to make Zenitsu grow up. The boy has abysmal self-esteem thus he thinks nothing will ever come out of him putting any effort in doing anything by himself, that's where people who expect something out of Zenitsu come into place to give him that much-needed confidence boost, his master Jigoro was the first to see something underneath Zenitsu's layer of cowardice and laziness, Tanjiro was the second; in the moments Zenitsu realizes there are people out there who believe in him, those are the events where he shows what he can really do, and he does not disappoint when things get going.

Your Eyes Can Deceive You: The setting doesn't bother explaining how Zenitsu can even tell his surroundings so precisely during his sleeping trance mode, with his eyes completely shut, because that should be rather obvious since Zenitsu is explicitly said to have super hearing as one of his abilities thus Zenitsu's form of combat while in trance invokes the same image of the famed Blind Weaponmaster in Japanese tales, who can tell his surroundings with his hearing sometimes even better than those who can see.

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Demon Slayer: Kimetsu no Yaiba: Zenitsu Agatsuma / Characters - TV Tropes

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Following Go To 'I've... been protecting it... because you... said that... this thing is more important to you... than your own life..." Another young member of the Demon Slayer Corps who meets and travels with Tanjiro and Nezuko. Despite being cowardly and insecure, he still tries his best when push comes to shove.

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When Zenitsu uses his thunder breathing first form sixfold his eyes will blank out and look white”do to the intense stress his body undertakes when using it”.

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Zenitsu Agatsuma

Voiced by: Hiro Shimono (JP), Aleks Le (EN), Jose Luis Piedra (Latin American Spanish), Xavier Castañer (European Spanish), Mosè Singh (Italian)
Live actor: Keisuke Ueda (Stage Play)

'I've... been protecting it... because you... said that... this thing is more important to you... than your own life..."

Another young member of the Demon Slayer Corps who meets and travels with Tanjiro and Nezuko. Despite being cowardly and insecure, he still tries his best when push comes to shove. He fights better in his sleep than awake.

Accidental Misnaming: This happens to him after Nezuko starts talking again.

Nezuko: (to Zenitsu) "Welcome back, Inosuke."

Adaptation Expansion:

The anime adds more at the end of the group's first stay at the Butterfly Estate. In Zenitsu's case, the servant girls scold and advice him to fix his behavior around women, which could be the beginning of Zenitsu's eventual focus on Nezuko instead of random girls, which in the manga happened mostly without warning.

The video game by CC2, Demon Slayer: Kimetsu no Yaiba - The Hinokami Chronicles, adds a new variation to Zenitsu's usage of Thunder Clap and Flash as one of his basic attacks called Kiwami, it simply is a more standard Iaijutsu attack, where Zenitsu just quickly unsheathes his blade to attack and sheathes it back before initiating the proper First Form.

An Aesop: Be happy with what you finally got after being rescued from living a harsh childhood, that's Zenitsu's summarizing how his former colleague Kaigaku went through the dark path despite both of them coming from the same walk of life as former destitute orphans. Zenitsu calls it the box of happiness, people like Kaigaku must learn how to prevent the stream of goodwill from leaking through the box lest they completely ignore all good things that actually happened in their lives, erroneously coming to believe nothing good ever happened to them; that became the main difference between Zenitsu and Kaigaku, the former stopped the leaking from his box after their master Jigoro gave them a decent life and mentoring in demon slaying, the latter was never satisfied, for him Jigoro was obligated to only see one of his students as being worthy, himself, otherwise Jigoro was worthless in Kaigaku's eyes. Zenitsu ends up being the one who kills Kaigaku, avenging the fact Kaigaku's betrayal in becoming a demon led to their master commiting seppuku to atone for his disciple's betrayal.

Aesop Amnesia: Much later in the series, by the Infinity Castle arc, Zenitsu has mostly grown to be a heroic demon slayer, determined to do his part without cowering into fear or self-doubt, but for the sake of humor he will snap back, for a brief moment, to his early crying tantrums when he is in pain or scared of something.

All of the Other Reindeer: During his childhood as a homeless orphan who just tagged along equally destitute children like him, they didn't like Zenitsu's apparent coward nature and crybaby behavior, he was often abandoned by other kids who labeled him as completely worthless, however, as a teenager Zenitsu was taken in by a elderly sword master who paved the way for Zenitsu to come out of his shell, slowly but surely growing into a great demon slayer.

Asian Buck Teeth: Used for caricature comedic effect; both Inosuke and Kyojuro, saw Zenitsu having quite the buck teeth during their dream prison under Enmu's power; Zenitsu's actual normal appearance doesn't have that pronounced buck, but Gotouge says in a extra that Zenitsu does have buck teeth, it just isn't visible.

Badass Baritone: His Japanese voice acting performance, where Zenitsu talking through his sleep trance only has Hiro Shimono drop all nervousness from his usual Zenitsu voice, sounding just calm as a result. By contrast, the English performance in the Mugen Train movie has Aleks Le making his voice sound much deeper, as if trying to hammer the point harder that Zenitsu in his trance is a tough demon slayer.

Berserk Button: Don't even hint that you're hiding women from him, or are in contact with women while he isn't. Either you're a bachelor like him, or you're scum in his eyes.

Beware the Silly Ones: At first glance, Zenitsu appears to be an easily scared crybaby who overreacts to everything and throws tantrums, therefore making it seem like he isn't much of a threat ... until you learn that he's capable of using Thunder Breathing and could therefore could be a powerful fighter if he didn't hold himself back, as the Tongue Demon, the Older Brother Spider Demon, and Kaigaku can attest.

Blank White Eyes: Under intense stress to fully charge his Thunderclap Flash: Six-Fold, Zenitsu was portrayed with fully blanked out eyes, for the first time he showed the technique off. His eyes are drawn fully white later to show his imposing figure against Kaigaku, in moments Zenitsu gains the upper hand in their fight.

Blood from the Mouth: Whilst fighting the Older Brother Spider Demon, Zenitsu was poisoned and went through great stress to prepare his Thunder Breathing technique to the point he vomited some blood in the middle of his struggle; way later in the series during a comedic extra story Zenitsu vomits blood in pure excitement, as he sees Nezuko wearing a swimsuit, comically dying in the process, it's just a fun extra page though so obviously Zenitsu does not actually die for real.

Body Horror: In his bout against one of the spider family demons Zenitsu gets inflicted with a demonic art meant to mutate his body into a demonic spider creature, Zenitsu's arm begins to mutate but in desperation he finds strength to defeat the demon, he then gets rescued and put under intense care to heal his arm which by then had shrunk, starting to mutate into spider claws, in the aftermath however Zenitsu is fully healed.

Brilliant, but Lazy: Turns out to be a faster learner than Tanjiro, but only with the incentive of getting to hang out with pretty girls. Not to mention he invents a new Technique for Thunder Breathing.

Broken Pedestal: His former superior Kaigaku becoming a demon really, really makes him lose all admiration for him.

Butt-Monkey: Due his cowardly and negative forefront personality Zenitsu tends to fall in embarrassing situations due being the first to complain about the current situation he or the group find themselves in, the team going undercover in a Red Light District shows Zenitsu getting the short end of the stick pretty well.

Can't Act Perverted Toward a Love Interest: Zenitsu in his desperate attempt to get married as quickly as possible often literally throws himself on women begging for them to marry him, usually in a comedic manner, and at one other time he has proclaimed really well his love for a woman's curves; with Nezuko however he is quite tame, his crush on her is quite the puppy love, innocently presenting her with flowers included.

Canon Immigrant: Zenitsu is shown to have the artisan ability of making flower crowns in the Light Novels, he of course wants to give one to Nezuko; that happens in the manga at the very end, little epilogue panels in the final chapter show Zenitsu making one for Nezuko, it is the only legitimate way he can actually court her without embarrassing himself.

Casanova Wannabe: Hits on girls frequently but unsuccessfully, and often tries to charm Nezuko.

Character Development: Used to think small, as in he only wanted to show off as a demon slayer if it could make him the center of attention, especially with girls; later on Zenitsu starts to have more serious goals of becoming strong enough to be able to protect as many people as he can. And when his beloved master is forced to commit Seppuku in shame for another pupil of his betraying the Corps to become a demon, Zenitsu actually starts having a clear goal of wanting to become the Thunder Hashira like his master once was.

Characterization Marches On: His attempts to charm girls are phased out as the series progresses, and instead focuses the humor on Zenitsu's jealousy of the mere prospect of someone having a girl while he doesn't, and his freak-outs over harsh demon-slaying training sessions. It can be implied Zenitsu just sort of decided to make Nezuko his main goal, but the series doesn't actually show him making the resolve of forsaking chasing after someone else, and even after meeting Nezuko he tried to charm the Butterfly Estate girls. After that, though, Zenitsu isn't seen trying to charm girls other than Nezuko ever again. note

Charged Attack: Can only use his strongest 1st Form variation, Thunderclap Flash: Godspeed, twice in a day; however, by the end of series, Zenitsu has honed the ability further, being able to use it more than twice in a day.

Chivalrous Pervert: Zenitsu's colorful rant about women and their curves gave him a bad first impression with the Butterfly Estate girls, but Zenitsu is actually seriously commited to the idea of marrying someone fully intent on loving them, even when it made him suffer, as in the past there were women who entertained him, with bad intentions, like the unknown woman whom Zenitsu had eloped with and piled him with debts, where he had to be rescued by his future swordsman master, prior the beginning of the series.

City Mouse: The Databook reveals Zenitsu was born near Tokyo, and he's generally in touch with modern society and the industrial advancements of early 20th century Japan. This puts him in contrast with Country Mouse Tanjiro and Wild Child Inosuke, especially when he's the only one of them who actually knows what a train is.

Contagious Heroism: Zenitsu was more of a reluctant coward before meeting Tanjiro, the guy always had some goodness in him but his willingness to act was less prominent, with Zenitsu wanting to avoid danger as much as he could, needing some push for him to act as a hero; working with Tanjiro most of the time, however, has made Zenitsu grow quicker to act on behalf of others as walking with Tanjiro has made him face more danger than he likely would if they never became friends.

Coordinated Clothes: The haori Zenitsu wears was given to him by his master Jigoro, they both wear the same triangular symbols pattern; a later series volume extra information makes it more of a bigger deal as it directly differentiates Zenitsu and Kaigaku's views on their master, Zenitsu chose to wear what was gifted to him, while Kaigaku was also given the same haori but he didn't even wear it, this shows which disciple really respected their master.

Costume Evolution: After all is said and done, by the very end of the series Zenitsu takes upon wearing his beloved master's haori, a simple and clear way to show Zenitsu has finally succeeded Jigoro's wishes.

Cowardly Lion: The actual core of Zenitsu's character; on the surface he is cowardly, is always complaining about something, screaming at the top of his lungs that he should just run away and give up on being a demon slayer, turns out that despite of all his incessant tantrums Zenitsu never actually runs from the heat of battle, to the point he just developed a kind of trance sleep mode where he can bravely fight against his foes while being somewhat unconscious thus unable to fear what is in front of him, and as the series progresses Zenitsu becomes able to fight more as himself instead of always relying on his trance mode.

Crazy Jealous Guy: Comically becomes one towards Nezuko after finding out about her, to the point where he attacks her own brother due to a misunderstanding and later has an urge to kill Inosuke after Nezuko mistakenly calls Zenitsu by the former's name.

Crippling Overspecialization: Can only use one Thunder Breathing technique (the basic technique), but he is very adept at it, to the point he developed phases for it: Thunderclap Flash -> Six-Fold -> Eight-Fold -> Godspeed.

Crouching Moron, Hidden Badass: He's usually a wimp, but when he can still pull through when things get bad.

Crush Blush: Zenitsu does this a lot when it comes to Nezuko, from innocently presenting her with a flower to going full tomato red face in his dreams where Nezuko can actually speak normally and reciprocate his advances. His dreams sort of come true when he sees Nezuko finally speaking and thinks she did it for his sake. Of course, she currently isn't able to speak in full sentences, and she ends up breaking his heart by accidentally calling him Inosuke.

Curtains Match the Window: While this is a theme with several other characters in the series, Zenitsu is the one that sticks out the most, his whole yellow thunder theme is all over his design, blond hair, gold eyes, yellow coat and yellow tint on his nichirin blade.

Deadpan Snarker: Zenitsu does not buy into Tengen's flamboyancy, immediately thinking Tengen is completely mental for his extreme personality and demanding to be worshipped as the god of festivities and flamboyancy, insulting Tengen with sarcastic thoughts. It goes into greater sarcasm against Kaigaku, whom Zenitsu finally talks back to, Zenitsu showers Kaigaku with insults as the disciple who could never learn the first Thunder Breathing form and who couldn't be a successor to their master.

Death-or-Glory Attack: The ultimate variation of his Thunderclap and Flash technique, God Speed, is so powerful and ridiculously fast that Zenitsu claims using it more than twice in a day will render his legs completely useless, the strain on his muscles and bones is just too great; even the results of keeping it in the twice-a-day limit is very dangerous, Zenitsu felt as if his legs were broken after the fact. The only thing Zenitsu could do to improve the usage of God Speed, later in the series, is just shape himself up so he can use more than twice in a day, the drawback never really goes away.

Declaration of Protection: Zenitsu in his never-ending quest to try get himself a lover, self-declares himself to be Nezuko's protector as soon as he finds out she is a harmless demon and sister of his newfound good friend Tanjiro, as he thinks she should be protected at all costs; this is mostly used as a comic motivator for Zenitsu to get up and do his job as a demon slayer and to train harder, in a fight against the Lower Rank One however this is applied seriously, with Zenitsu actually speaking to Nezuko in his trance mode that he will protect her, shielding her from the Lower Rank's attacks as she was fighting alone till then.

Desperately Craves Affection: An integral part of his character, used for both comedic and dramatic effect, as Zenitsu grew up as a lonely orphan nurturing a strong need of belonging, wanting to be needed by those around him and eventually be loved by a significant other. Early on this is shown in his comedic failed attempts to charm girls, while the dramatic side is shown through all the challenges Zenitsu is pushed to overcome his flaws, like his cowardly behavior, in order to grow as a demon slayer, hoping others will appreciate him as their hero.

Disguised in Drag: To spare Aoi from being forcefully drafted into Tengen's mission of infiltrating a Red-Light District to rescue his contacts (his 3 wives) and exterminate a demon all three boys volunteer to take the mission in her place, but since Tengen really needed female slayers he forces the trio to disguise themselves as girls and apply themselves as courtesans. Zenitsu is the one who stands out the most due circumstances forcing him to go throughout the entire event dressed like a girl, while everyone else had already broken off the disguise during the nerve-wracking fight against the demons.

The Dulcinea Effect: If Zenitsu can't muster the inner courage he has to surpass all of his cowardice on the surface, a good way to make him focus and be brave, or at least try to, is finding himself in a situation where there's a woman in peril. Zenitsu will then stop his complaining right away and go for the rescue.

Elemental Hair Colors: Downplayed since he doesn't have electricity powers (though Zenitsu got his blond hair color after being struck by lightning), but he is the primary Thunder Breathing user in the story and has blond hair to match.

Establishing Character Moment: His proper character introduction gives all the foundation of Zenitsu's character, the bad and the good in him:

1) He is desperate to find himself a lover and marry right away.

2) He is quite easily scared and overreacts to near everything; upon close inspection, however, Zenitsu never skips on his fights when the chips are down.

3) Zenitsu says he is weak and needs to be protected, while, in fact, his strength is pure speed; his fight record and achievements do not lag behind any of his friends.

4) His tantrums makes it seem he only cares about himself, in truth Zenitsu is faithful and shows immense gratitude when he protected Tanjiro's box, Zenitsu had only just gotten close to Tanjiro, and by then he had no idea what actually was inside the box, all Zenitsu knew it was important to Tanjiro, so he protected it with his own body as a shield.

Fast as Lightning: Thunder Breathing is a swordsmanship style used by Zenitsu that channels strength into his legs, allowing him to dash at incredible speed to slash enemies with the visual effect of lightning.

Finishing Move: The Thunder Clap Flash is the only form Zenitsu has managed to learn in his Thunder Breathing style, but he has mastered it to an extreme degree where his one move is pretty much the battle finisher as Zenitsu created several phases within the technique to make the Thunder Clap Flash as powerful as he can possibly make it out to be; Zenitsu later creates a technique all by himself, the 7th Thunder Breathing form: Flaming Thunder God which is pretty much a certified battle destroyer move.

Flash Step: The main application of the Thunder Breathing style, while all demon slayers must be fast to move and quick to draw their blades a Thunder Breathing user will go beyond that and be ridiculously fast to the point even demons will be surprised by their speed, Zenitsu is so adept at the only real Thunder Breathing technique he mastered that it makes him lightning-fast to incapacitate and kill demons, making up for the lack of skill in the other Thunder Breathing forms.

Flower Motifs: In an author's description of Nezuko's thoughts on Zenitsu, Gotouge Koyoharu has stated that Nezuko, in her childlike mind, innocently sees Zenitsu as a funny-looking dandelion; Zenitsu's supernatural blond hair, and the way it stylized, does pass said impression.

Fragile Speedster: The one Thunder Breathing technique he can use makes him incredibly fast, but he lacks in other departments. The Flaming Thunder God technique, however, is both fast and powerful enough to slice through an Upper Rank's neck.

Friendless Background: A crucial point of his backstory, Zenitsu had no true friends before meeting Tanjiro, the guy really had a need to belong since he had no family, which prompted himself to try being part of any group of people when he was younger, however, Zenitsu's cowardly and crybaby moods either quickly made others want to stay away from him, or fake tolerance to later scam him. Nobody before his master, and later Tanjiro, bothered to notice Zenitsu's good qualities beyond his apparent faults.

Friendly Rivalry: Tragically ends up as only one part thinking it had any friendship in-between, Zenitsu admired Kaigaku as his colleague in training despite all the volley of insults the two threw at each other, turns out Kaigaku really hated Zenitsu and betrayed their master to seek more power as a demon, then mocking their master's suicide by Seppuku in order to atone for Kaigaku's betrayal, that made Zenitsu lose all of the little respect he had for Kaigaku, fighting and killing him.

Glowing Eyes of Doom: The anime adaptation added more fanfare to Zenitsu's absolute body stress to initiate the steps to augment the power of his Thunderclap Flash attack, in the manga it showed white eyes, the anime made it go white and then added glowing effects of light and thunder.

Green-Eyed Monster: Admits that he was more infuriated about the fact Tengen is quite the handsome man, and has three beautiful wives, than being forced to disguise himself as a female courtesan for their covert demon slaying mission, that however is Played for Laughs and is just one of the many times Zenitsu sees, or simply mistakes, other men having better luck with women than him.

Grew a Spine: The conclusion of his character arc; Zenitsu finally forces himself to grow out of his self-deprecating mental abyss, forsaking his sleep trance mode entirely, when the tragedy of his master's death strikes, going on to face the cause of said tragedy in the form of his former fellow disciple, Kaigaku, who now turned into a demon, traitor of the demon slayers; Zenitsu faces Kaigaku head on, and kills him, the older disciple whom Zenitsu was completely submissive to before due seeing himself as inferior and partially out of respect, despite their differences Zenitsu still wanted to see him as a brother before everything went south.

Happily Adopted: Having no parents and living an early life where he tried to make a living by walking in groups of equally aimless orphans, then getting saddled with a woman piled with debts, Zenitsu was taken in by a swordsman demon-slaying master; Zenitsu grew fondly of him, going on to affectionally call him grandpa.

Heroic Second Wind: Pretty much what Zenitsu's sleep trance mode amounts to, Zenitsu at first will seem completely harmless as a demon slayer, cowering and screaming his lungs out about how he cannot perform his duties properly; the demon will buy into Zenitsu's apparent incompetence, underestimating Zenitsu's capabilities and going for the seemly easy kill, Zenitsu may suffer some initial damage but then falls asleep, his trance mode kicks in and the battle pretty much turns on Zenitsu's favor with the demon in complete disbelief on how the apparent weakling suddenly became so strong; as the series progresses Zenitsu starts talking while in his sleep trance mode, showing his personality also gains a huge confidence boost, it tops off with Zenitsu not needing his trance mode anymore, he becomes confident enough to fight his battles with his eyes open.

Heroic Self-Deprecation: The darker side of his need for validation from those around him, Zenitsu harbors some deep self-esteem issues from his past where he quite never found a group of friends he truly belonged to, feeling he was useless and then getting called as such after being abandoned by past acquaintances, Zenitsu started to believe he really doesn't amount to anything as a person and only kept taking the path of the sword out of respect for his master and the waning hope that maybe someday someone will see him as their hero.

Hidden Depths:

Is much more familiar with the advancements of the wider world than one would think. For example, when boarding a train for the first time Zenitsu is the only one to know what it is, while Inosuke takes it to be the "master of the land" and tries to fight it while Tanjiro (a "country bumpkin" in Zenitsu's own words) reasons that it could be a guardian spirit. A volume's extra illustration comically shows the trio's reaction towards Tengen revealing that his mission would take place in a Red Light District; naturally Tanjiro and Inosuke have no reaction as they have no idea what that place means, Zenitsu, on the other hand, is fully red and fidgety upon hearing it and awkwardly asking both unamused boys how can they not know what a Red Light District is.

Because of his enhanced sense of hearing, he's an incredibly good musician who can play back any song after hearing it once.

Beneath his insufferable behavior and lecherousness, Zenitsu is a profoundly sweet young man, this being the reason why the people that know him are tremendously fond of him.

His Own Worst Enemy: Zenitsu is too obsessive, grabby and clingy for the comfort of the women he meets. As he approaches women with unbound zeal and behaves like a showoff, instead of approaching out of a sincere drive to help and sympathize (like Tanjiro does), said women generally dislike him. Sure, he's a nice guy... but he's no gentleman.

Holier Than Thou: Played With. While not outright stated, he feels he is more moral compared to others and constantly chastises his comrades for their antics, yet he does things that are more or less far from moral, in other words, he displays self-righteous behaviors, such as trying to propose a girl in a desperate way, creeping them out, and blame others for things that either aren't their fault or have little control of, and is even quick to assume the worst of them. When he found out that the demon Tanjiro was carrying was a cute girl named Nezuko (who was also his sister), his first assumption was that he was all lovey-dovey with her, and began to attack and scream at him for it without giving him a chance to explain.

Hypocritical Heartwarming: In a flashback, Zenitsu got into a fight with some fellow Demon Slayers when they mocked Kaigaku for not being able to perform the first form of Thunder Breathing. Zenitsu never liked Kaigaku, but he did respect him, at least before he found out Kaigaku became a demon and caused Jigoro to commit seppuku.

Hypocritical Humor: Another source of the comedy attempts on Zenitsu's behalf, it gets explored more once his cowardly lion antics start to take a back seat; Zenitsu freaks out when other people do, or he mistakes them as doing it, exactly what he himself would like to do, as in Zenitsu throws himself on a random girl imploring she marries him, when he is on demon-slaying duty, but loses his mind when he mistook Tanjiro and Nezuko as a pair of lovers instead of siblings, babbling about the serious duty that is demon-slaying, so fooling around in love is taking their duty lightly; he repeats this episode at the beginning of the Red Light District arc, mistaking the recon and rescue mission as Uzui wanting to score himself a woman to have as his wife.

Iaijutsu Practitioner: At least when he's asleep, Zenitsu can draw his sword, slice, and sheathe it so fast that you can barely even see it leave the scabbard, as seen during his "fight" against the tongue demon: one moment, Zenitsu's hand slightly twitches and exposes only a tiny bit of the blade, the very next instant, the demon's tongue is already severed. He then finishes things off by combining this with a Flash Step to decapitate his foe.

I Just Want to Be Loved: A place to belong with people who wish good things upon him, that's what Zenitsu wanted as he laments never having a place to himself by being orphaned, possibly abandoned at birth, and no one ever expecting anything out of him, labeling him as worthless; Zenitsu felt prey to people in the past who took advantage of his need to belong by faking a bond with him, using and abusing the guy. However that's all in the past as Zenitsu realizes that meeting with his master, Jigoro, changed that situation, with his master he found a place to be and someone who honestly wished him good, and that extends, even more, when Zenitsu finds Tanjiro, Nezuko and Inosuke, his honest friends.

I Just Want to Be Normal: While Zenitsu has an inner dream where everyone sees him as a hero who can be relied on to always protect them, thus being a wish of someone who wants to be special in the end, the boy used to gravitate mostly towards thinking that the demon-slaying life really isn't for a person like him, asserting that a normal, humble life where he lives quietly and builds a family is the best outcome he could ever hope to achieve.

I Just Want to Be Special: His life as an underachiever who could never really make real friends, or ever be center of attention, left Zenitsu with a burning desire that for a person like him only becoming someone special could make people truly like his company; special in Zenitsu's case means becoming a demon slayer who can defeat any nemesis and be loved by people everywhere he goes, this desire of his clashes directly with how much of a negative person he is towards himself, while deep down Zenitsu wants to reach greater heights, on the surface he thinks of himself as someone who will just die at every demon encounter thus having any aspirations would be a waste.

Imagine Spot: In the second Light Novel during the event in which Tengen, Zenitsu, and Inosuke go to the Hot Springs, Zenitsu wastes no time imagining in vivid detail how Tengen's wives, Hinatsuru, Suma and Makio, would take baths together.

Informed Ability: At the height of Zenitsu's supernatural hearing, it was stated he can even hear someone else's thoughts, however, that is never put on display throughout the series; the best showcase of Zenitsu's hearing is him being able to somehow "hear" how good a person is through their body movements, speech and breathing, that's how Zenitsu devoted himself to Tanjiro as a great friend.

Informed Flaw: During the curse induced dreams the heroes have against the Lower Rank One fight, Zenitsu appears like a caricature of himself in Kyojuro and Inosuke's dreams as a stereotypical man with overbite teeth formation in a very exaggerated manner, that contrasts greatly with his normal appearance where no flaws in his face can be seen, and that would be ok since those were just illusionary versions of Zenitsu, however in a volume extra the author does say Zenitsu really has overbite, but outside the caricature version of him it just can't be seen.

It's All My Fault: After defeating Kaigaku, in his near-death vision of the afterlife, Zenitsu talks with his master one last time, blaming himself for his master's seppuku in atonement for Kaigaku's betrayal and for the latter's betraying them in first place; Zenitsu reasons that if he wasn't such a coward and an incompetent disciple he wouldn't have brought shame to his master, that if he was as good as Kaigaku their master wouldn't have felt the need to try to atone for one of his best disciples turning over to the demons. The master however doesn't agree with Zenitsu, honestly believing Zenitsu has always been his pride and joy, as previous flashbacks shows the master supporting Zenitsu at every turn, even if he tried to run or cry, the master saw through Zenitsu's layers in that beneath all the apparent fear the boy never actually stopped trying to make through the master's training regime, all paying off with Zenitsu defeating Kaigaku who was seen as the much stronger disciple by others.

Large Ham: Zenitsu is 120% committed to honestly expressing what he feels, when he feels, by screaming it on top of his lungs.

Let's Get Dangerous!: He completely drops his usual cowardice when facing his treacherous former fellow pupil Kaigaku and showcases that he's a true heir to the Thunder Breathing techniques.

Lightning Can Do Anything: Apparently lightning can grant permanent perfect hair dyes. Zenitsu who was once black-haired got a free dye job from a lightning bolt striking him, turning him permanently blond.

Locked into Strangeness: Used to have black hair until a bolt of lightning struck him, somehow permanently turning his hair blond. The official High School A.U. has Giyu telling him to dye it black since dyed blond hair isn't allowed at school.

Lovable Coward: Despite always being terrified, he always jumps to save his friends.

Love Martyr: Thankfully for Zenitsu this is just a small part of his backstory, and he isn't exploited again in current events; due his ongoing gag of wanting a girl to marry him Zenitsu has actually found some women in the past that pretended to entertain him instead of just rejecting his desperate advances like the comedic side of his attempts usually go, those past women all tricked Zenitsu and never stuck with him, he knew those women were bad but he really wanted to have someone by his side, fearing he will die alone as an orphan since childhood.

Meaningful Name: His given and family names are rooted in his character:

Zenitsu means "goodness", shedding light on his deeply good natured personality underneath his apparent immediate flaws such as his whininess and cowardice.

Zenitsu's family name, Agatsuma (我妻), can be read as Wagatsuma meaning "My Wife", it can be related to the running gag of Zenitsu being desperate to find himself a wife, as he sometimes upstages his attempts at charming girls with the immediate proposal of marriage.

Metallic Motifs: A blade, katana in particular, Zenitsu was motivated by his master Jigoro to be like a blade during its forging, to constantly be purified and focused on the one thing it matters: mastering yourself to eventually become unbreakable steel. Zenitsu's development as a demon slayer goes exactly like the katana forging process; his Thunder Clap and Flash technique even has an added deeper meaning to its stronger forms, Zenitsu literally calls them "Folds", not only he is folding the angles of his dashing but also "folding himself" like forgery processing, making him, the blade, a better molten steel. At the end, to hit the point home, Zentisu's actual nichirin blade is the only one out of his companions Tanjiro and Inosuke that never breaks throughout the series.

Mood-Swinger: Played for Laughs whenever a scene calls for getting Zenitsu out of his comfort zone, that is getting him to go through a demon-slaying mission despite his cowardly tantrums, Zenitsu will go from a seemly well behaved person to an incredibly nervous train wreck, yelling at the top of his lungs about how he is going to die at any second; another is getting him to train under a deadly regime, Zenitsu will immediately lose his mind and curse whoever thought of planning that training session, and when Tanjiro is there to make a counterpoint about how a deadly regime can get them better results at getting stronger, Zenitsu will unleash his fury at someone he once said was his great friend, only to pull a complete 180 degree turn on Tanjiro once he praises Zenitsu for being an important reference to others training as well, making Zenitsu then think his presence at the program really is necessary and that training isn't so bad after all.

Motor Mouth: In his fits of rage over attracting girls or believing someone else has a girlfriend, he'll start delivering huge speeches over how they're scum, according to himself, and that they should be ashamed. If you try to interrupt him, he'll get even louder.

Multicolored Hair: He has blond hair with orange ends.

Mundane Utility: Zenitsu's superhuman sense of hearing came in very handy during the undercover investigation in the Red Light District arc, as he disguised as a cross-dressed courtesan didn't quite have the looks to pass himself as a beautiful woman but could still entertain guests with his Shamisen playing skills, his super-hearing could make him be fully capable of playing any song he had heard just once, as the sounds are perfectly ingrained in his memory.

Mysterious Past: In contrast to his fellow main characters, Zenitsu's past isn't shown in much detail, and anything before his life as a young child who lived among wandering children is completely nebulous. The first databook reveals Zenitsu was born near Tokyo, but who his birth parents were, why they abandoned him, or who actually named him isn't ever disclosed. The second databook released after the series' end, which contains specific family trees for the characters, follows with not saying anything about Zenitsu's birth parents, it simply states he was born out of a father and a mother, both nameless factors; in the end Zenitsu's story was truly about the destination, his birth parents truly may be completely irrelevant, just another case of child abandonment.

Near-Death Experience: In the aftermath of Zenitsu's winning bout against Kaigaku he has a vision of the river of death, Zenitsu sees his beloved master on the other side, Zenitsu apologizes for not being a good pupil and preventing his death. The master, however, cries tears of joy and tells Zenitsu he has always been his pride and joy. Zenitsu tries to cross the river to his master's side, but spider lilies bind his feet, preventing him from crossing over, symbolizing how it's not Zenitsu's time just yet, before he gets reanimated back to life.

Necessary Drawback: As the series progresses Zenitsu steadily becomes one of the fastest beings in the story, but the drawbacks of his Thunder Breathing techniques never fade away, Zenitsu only works around making the extreme muscle fatigue on his legs take longer to kick in after continuous usage of his abilities; that limitation is put into place so Zenitsu doesn't become an untouchable speedster without limits, otherwise he would be an unparalleled demon slayer, with very few equals.

Nervous Wreck: Zenitsu is a capable guy when he finds the courage to brave through killing demons, or just resorts to his trance sleep mode where he fights in a state where fearing the enemy isn't possible, but he tends to freak out like no tomorrow at every single thing before he shows his true colors.

Nice Guy: Don't let his apparent cowardly antics fool you, Zenitsu is actually just as much of a nice guy as the ever selfless Tanjiro is; Zenitsu has gone on record of being nice to people he had only met for minutes at most, and being good to people he actually knew didn't even like him because Zenitsu just wanted things to be better, and even Inosuke whom he is always butting heads with, Zenitsu tried to cheer him up along with Tanjiro after the Spider Family fight left Inosuke feeling he was weak and useless.

No Indoor Voice: While nowhere as constant as Inosuke is about this trope, Zenitsu gets loud when he vocally expresses subjects he is passionate about, specifically pertaining to pretty girls.

No Listening Skills: Despite his enhanced hearing, he is hardly a very attentive listener. He often speaks and screams non-stop even when told to. In his jealous state, he completely stops listening to reason. He insists he has any say, while he refuses to let anyone who attract girls or he thinks they are flirting with someone talk, even telling them they are fantasing when he is told the true version of the story, despite being the one who is overthinking. When he saw Nezuko for first time, he didn't listen to Tanjiro trying to tell him she is his younger sister who was turned into a demon the night his family was murdered, trying to kill him, thinking she was his girlfriend. When Tengen tasked the trio to help him infiltrate the Red District, he didn't listen to Tengen telling him he sent certain people (his wives) to infiltrate there to hunt a demon, assuming he asked the trio for help to find a bride, despite being already married, even telling him he is fantasing everything when he told part of the real version of his story, much to Tengen's annoyance.

No Respect Guy: In spite of his relatively equal level to Tanjiro, he gets no recognition for his merits (especially from girls) because he's lazy, complacent, wimpy and cowardly. He's a good guy and an excellent warrior, but he's incredibly annoying.

Noodle Incident: Zenitsu's troubled past with people who took advantage of his desperate sense of belonging is never explored in detail, he alluded to in a single sentence during the Drum House arc that there were vixens other than the woman he eloped with before that were just as bad, if not worse, in abusing his goodwill. Said past trauma is never brought up again, not even in other publications.

Not a Morning Person: A tiny bit of information contained in one of the Extra chapters published with the 2nd Fanbook, after the manga ended; Tanjiro informs that Zenitsu at first had to adjust himself to the early morning routine of the Kamado family after he moved into their home at the end; since Inosuke has always been a mountain boy he didn't have the same morning issue.

Offscreen Moment of Awesome: A few moments where Zenitsu uses his body to protect others take place completely offscreen, the first being where he saves Shoichi from a fall out of the Drum House's upper floor, Zenitsu apparently saved the boy and hit his own head in the process, bleeding from the concussion; another is during the Mugen Train arc, Zenitsu saved Nezuko and a few passengers by embracing them and taking everyone out of the colliding train after Enmu's defeat, yet again hitting his head hard, bleeding from the impact.

One-Hit Kill: with Zenitsu's signature Iaijutsu discipline for his Thunder Breathing, his fights against demons who don't measure up to him usually end in a single attack of his, a swift slice through the neck, instant decapitation.

OOC Is Serious Business: He completely drops his normal cowardly attitude when confronting Kaigaku for becoming a demon, causing their master to commit seppuku alone and leading him to die a slow and agonizing death.

Parental Abandonment: It was briefly touched upon that Zenitsu has no parents, although it hasn't been revealed whether they abandoned him or they died (though Zenitsu believes they abandoned himnote ). After living a harsh early life Zenitsu was taken in by his Demon Slayer master, who Zenitsu views as his grandpa.

Prone to Tears: Boy does he ever, it is mostly used in comedic effect to either show Zenitsu reacting to being rejected by a woman for the umpteenth time or his crushing fear of fighting against demons while being a professional demon slayer himself; however, there are memorable times where his tears were used for dramatic and awesome moments.

Rage Breaking Point: Zenitsu had a very subservient relationship with his elder colleague disciple Kaigaku, the latter couldn't stand the former's presence due Zenitsu's difficult behavior as someone with low self-esteem who seemly wasn't showing much progress while being trained under the same master, even so Zenitsu tried to make things work with Kaigaku by respecting him; all goes down south when Kaigaku betrays the demon slayers to become a demon himself and as a form of atonement their master commits seppuku to pay the price of shame, with that Zenitsu loses all little respect he had for Kaigaku and showers him with insults and hard truths in their fight to the death, to the point Kaigaku even sarcastically compliments Zenitsu for finally talking back to him.

Rank Up: Zenitsu starts his career as a Demon Slayer as the lowest 10th rank, Mizunoto, after the Mugen Train arc he rises to Kanoe, 7th rank; the Infinity Castle arc starts with him as Hinoe, 3rd rank, three steps away from becoming Hashira, which is only revealed in the 2nd Databook.

Rousing Speech: In the later moments of Muzan's fight, in the Infinity Castle arc, after many slayers have been battered up to near-death, and Tanjiro had just been hit by a powerful shockwave emitted by Muzan, everything looks dire; Zenitsu steps up to save Inosuke from an attack and pushes himself to lift Tanjiro's morale up, as the latter laid down in almost a convulsion state, telling him that he cannot die, Tanjiro has to live through that incredibly deadly fight and go home with Nezuko, who had just turned human, Zenitsu being alive and boosting his morale moves Tanjiro to tears. Zenitsu who was once a cowardly slayer, who had to be pushed over the edge and motivated to fight, now steps up on behalf of others, motivating them as well.

Running Gag: At first it seems the jokes on Zenitsu's behalf are those played upon his cowardice and wanting to score a girl, in truth it is his extreme mood swings that form a circle around all the attempted humor with his character; coward tantrums, wanting to impress a girl, losing his cool over harsh training sessions, having little patience for eccentric personalities (while he is one to talk), jealousy of others having a mate, all of that is to instigate an extreme chain reaction of emotions on Zenitsu.

Sad Clown: Though hammy and emotional on the outside, when one of Enmu's henchmen breached Zenitsu's subconcious, it was a pitch black blank devoid of any hopes and dreams made manifest like the subconciousness of Rengoku, Tanjiro and Inosuke's. A life of abandonment, loss & betrayal had left Zenitsu's heart so hollow and bereft of hope for the future, all he has to live for is the present; until he met Nezuko.

Screams Like a Little Girl: Part and parcel with his No Indoor Voice and Large Ham personality, Zenitsu screams every emotion on the top of his lungs, especially when he is terrified. It's a testament to the skill, comedic timing and vocal-chord strength of Hiro Shimono that he has not lost his voice after his introduction arc.

Selective Obliviousness: Jumps to conclusions when he sees Nezuko for the first time, attacking Tanjiro believing that she was his lover. Once he learns she is his sister, his treatment of him was never brought up.

Serial Romeo: Zenitsu immediately forgets about the previous woman he desperately asked to marry him upon finding a new target; the only one he hasn't let go is Nezuko, partially because he might like her more than his usual crushes on first sight and that Nezuko is a nice demon girl in a state of mind where she really can't decide or understand complex things yet, she is just nice enough not to repudiate Zenitsu on sight.

Shock and Awe: Thunder Breathing adepts have lightning sparks all over their techniques, Zenitsu is given more fanfare due to how much he overexerts his usage of the Thunderclap Flash; however, all the lightning is just a visual effect of portraying elemental affinity to the technique's main aspect, speed. That said, the times where Zenitsu used his technique to its fullest potential at given points in the story, it was noted a sound "like thunder" could be heard coming from his actions, implying Zenitsu is actually breaking speed barriers when he goes all out.

Shown Their Work: Zenitsu's strongest attack shows Gotouge did the proper homework on the effects of such insane speed, the 7th Form: Honoikazuchi no Kami has Zenitsu's haori starting to be thorn apart on his way to behead Kaigaku, showcasing just how fast Zenitsu is at that moment, guaranteed super sonic speed at the bare minimum, in order for the air friction to start burning his clothes off.

Significant Wardrobe Shift: Zenitsu at the beginning of the story was a meek, whining and reluctant demon slayer, he only became a warrior to show gratitude towards his master Jigoro, who once saved him, wearing a bright yellow haori, given to him by Jigoro which is themed after his own haori. In the very end of the series Zenitsu takes up his master's haori, who died before Zentisu could show how much stronger and courageous he grew to be, but Jigoro could see that from the afterlife, personally congratulating his pupil, thus Zenitsu has successfully inherited his master's will after he has helped to kill the source of all demons.

Single-Stroke Battle: When Zenitsu fights against weaker demons it goes accordingly to the theme more precisely, in one single stroke of his Thunder Breathing Style, which invokes an Iaijutsu discipline, Zenitsu quickly dispatches the foe with a swift slash to the throat; on longer battles however Zenitsu tries to charge his speed to a ludicrous degree till he blitzes through the area, all to find that sweet spot to behead the enemy.

The Slacker: In Zenitsu's case it is more of a combination of his bad self-esteem and fear of getting hurt in any way possible, so he hates any kind of training that will force him to put more effort than he personally would like to give, with that Zenitsu must really be coerced in a way that will make him go through it even if complaining along the way, two popular methods are he himself feeding on his dreams that getting stronger will make Nezuko fall for him, and the other is filling him with praise, Tanjiro honestly believes in Zenitsu so that usually works, but also Shinobu pretended to cheer Zenitsu up to get him going. The tragedy with his master's death made Zenitsu be serious about his training and future without others forcing him, however.

Sleepwalking: Except with fighting. He fights with pure instinct when unconscious.

The So-Called Coward: His constant cowering against having to face demons in battle already looks odd enough due Zenitsu never actually running away from his duties as a demon slayer, crying on the way to battle but still fighting nonetheless; the full realization comes when Zenitsu's rivalry with a former colleague of his comes into play, Kaigaku was said to be Zenitsu's total opposite, he actually learned most of the Thunder Breathing forms and always made sure to brush on Zenitsu's face how much of a failure and a coward he was, but in the end it was Zenitsu who stuck to the Demon Slayer corps always fighting against demons, while Kaigaku was revealed to be a true coward who immediately threw his life away for more power as a demon; resulting in Zenitsu killing his supposed stronger colleague turned traitor.

Spell My Name with an "S": While Zenitsu is the most common way his name has been spelled for western audiences, a more proper romanization would be Zen'itsu to indicate its correct pronunciation, there's emphasis on the Zen (Zen - i - tsu) instead of saying it like Ze - ni - tsu. Then there's the author herself trying to give it an original spin, Gotouge has said the emphasis on the "tsu" should be bigger than on "Zen".

Split Personality: A downplayed example; Zenitsu at first glance is cowardly and whiny, however, the sleep trance he developed for unconscious combat is pretty much the ideal version of himself that Zenitsu dreams, but thinks it is impossible, of becoming. In later events when Zenitsu starts talking during his trance, he is shown to be very brave and just, fully in tune with all the results of his Thunder Breathing training, in this state Zenitsu remembers everything that happened while he was awake, meanwhile the normal Zenitsu does not remember what he did during his trance, furthering his own perception that he is weak and worthless. In truth awake Zenitsu and trance Zenitsu are the same person, it's only that during sleep Zenitsu removes all of his immediate flaws, which eventually reaches the natural conclusion of Zenitsu forsaking the need of his trance, becoming a hero fully aware of himself.

Super Hearing: His hearing is very acute, and he can even tell people apart by the way their bodies sound.

Super Speed: While the most capable Demon Slayers have superhuman speed by default - they couldn't keep up with the much stronger demons if they didn't - Thunder Breathing adepts are on a tier of their own. At the peak of their abilities even demons cannot keep up with their speed; Zenitsu, when he gets serious, moves so incredibly fast that even two Upper Ranks were not able to follow him at all.

This Is Unforgivable!: Zenitsu was absolutely pissed at Kaigaku for becoming a demon, resulting in his master committing suicide to atone.

Through His Stomach: Comically asked Nezuko to marry him on the prospect of feeding her Sushi and Eel every day, which resulted in a failed attempt because Nezuko's mind as a demon was not able to understand what Zenitsu was proposing on that event. Plus, Zenitsu's attempt gets ruined when Nezuko calls him "Inosuke".

Throw the Dog a Bone: It seems like he and Nezuko do hook up after the fight with Muzan, seeing as how their descendants in Modern Day Tokyo bear a resemblance to him and her.

Too Kinky to Torture: As long as the one doing the "Torture" is female, he won't mind at all.

a shining example is the fight against his former colleague pupil, Kaigaku, who betrayed their master and team by turning into the very demon kin they are supposed to hunt, Zenitsu fought against someone who was touted as superior to him as a human, then becoming a demon even more powerful than a regular demon, and Zenitsu actually won. Zenitsu has even toughened up to fight against Took a Level in Badass: As the series progresses Zenitsu starts having more battles in which he doesn't cower into his sleep trance mode to fight without fearing his opponent; Muzan in his strongest form and managed to damage Muzan for everyone fighting him.

Unconscious Objector: Zenitsu has defeated enemies while unconscious.

Undying Loyalty: The shining quality that makes Zenitsu stand out beyond his apparent cowardly and whiny behavior; Zenitsu will bury all his flaws within when it comes to giving his whole self for people who were honestly kind to him and believed he could reach greater success in life. Zenitsu is at first scared of fighting demons as he fears he could die at any moment, but Zenitsu's master trained him with so much care that he will never abandon the sword; Tanjiro is such a good-natured person that Zenitsu pretty much decided quick enough that Tanjiro is someone whom he should unquestionably trust and put his life on the line by facing all sorts of mortal battles with.

Unexpected Successor: Among Jigoro's students there was a clear divide between the eldest disciple Kaigaku and the youngest Zenitsu; Kaigaku was a seen as the much stronger one, who was keen on being Jigoro's successor, while Zenitsu had no expectations on being Jigoro's chosen one at the time, as the boy seemed to lack talent and any drive to push forward. However, throughout the series Zenitsu slowly but surely grows past his limitations, and Kaigaku turns out to be a nasty traitor who becomes a demon, who Zenitsu then kills. In the end Zenitsu wears Jigoro's haori, being his sole successor, Zenitsu himself never thought he would be the one to succeed his master.

Unlocking the Talent: Zenitsu is of the lazy and extremely self-depreciative variety, he was brought in by a sword master by pure chance, as Zenitsu was piled with debts after eloping with a woman who didn't care for him until his master rescued him from that predicament thus Zenitsu never really saw himself becoming demon slayer, it just happened. Zenitsu endured the hard training imposed on him but it seemed Zenitsu had no talent at all, he just couldn't learn any Thunder Breathing form beyond the first one, said to be the most basic and easiest to learn, however as the series progresses Zenitsu slowly but surely is pushed by those who care for him to break through his mental blocks and show that he has some talent underneath; Zenitsu has pushed the most basic Thunder Breathing form to unseen heights, making it a terrifying technique against demons, and later he creates his own form: the 7th Style - Flaming Thunder God, which is quite the battle finisher move.

Unusual Eyebrows: The forked kind.

Up to Eleven: Zenitsu is the only out of two characters in the entire series, yes even counting the Hashira, to portray an astounding feat of speed by the final arc that automatically placed him on a tier of its own in terms of pure speed, indicated by his clothes starting to rip apart due air friction during his 7th Form: Honoikazuchi no Kami, that accurately showed his speed as beyond super sonic at that moment; the only other character to show a superior feat of speed is Yoriichi, and that is the strongest character in the entire series, a borderline divine man.

When All You Have is a Hammer...: Only managed to learn one of the Breaths of Lightning techniques, Thunder Clap Flash. When that doesn't work, he just does it faster. However, he then managed to invent a seventh Thunder Breathing technique which he uses against his former superior.

Wild Take: Despite its somber tone with all the demon-slaying the series does not shy away from many comedic moments, the characters pull the most extreme face reactions imaginable, Zenitsu is the undisputed king of it as he is the resident overreacting wreck of the bunch.

Would Hit a Girl: Zenitsu's sense of justice is greater than his very pronounced love of women, he drops any pretense of holding a vow of never hitting a woman if it is a very vain, abusive courtesan who turns out to be a demon in disguise; to note Zenitsu is completely set on passing judgement on Daki for her evil deeds, to the point he never cares about how beautiful she is.

Wouldn't Hit a Girl: In his self-proclaimed status as a gentleman Zenitsu says he won't harm girls, not even throw tea on them despite it being part of the focus and agility training in his first stay at the Butterfly Manor, however this gets him no applause from Aoi, and the other girls as they overheard Zenitsu's colorful rant about women, their curves and how he longs for even catching a glimpse of them; against demons, on the other hand, Zenitsu doesn't play the gentleman card, if it's a human devouring monster Zenitsu won't care if it is female, he will go for the kill.

You Are Better Than You Think You Are: The driving force on the arduous path to make Zenitsu grow up. The boy has abysmal self-esteem thus he thinks nothing will ever come out of him putting any effort in doing anything by himself, that's where people who expect something out of Zenitsu come into place to give him that much-needed confidence boost, his master Jigoro was the first to see something underneath Zenitsu's layer of cowardice and laziness, Tanjiro was the second; in the moments Zenitsu realizes there are people out there who believe in him, those are the events where he shows what he can really do, and he does not disappoint when things get going.

Your Eyes Can Deceive You: The setting doesn't bother explaining how Zenitsu can even tell his surroundings so precisely during his sleeping trance mode, with his eyes completely shut, because that should be rather obvious since Zenitsu is explicitly said to have super hearing as one of his abilities thus Zenitsu's form of combat while in trance invokes the same image of the famed Blind Weaponmaster in Japanese tales, who can tell his surroundings with his hearing sometimes even better than those who can see.

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Demon Slayer: Kimetsu no Yaiba: Zenitsu Agatsuma / Characters - TV Tropes

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Following Go To 'I've... been protecting it... because you... said that... this thing is more important to you... than your own life..." Another young member of the Demon Slayer Corps who meets and travels with Tanjiro and Nezuko. Despite being cowardly and insecure, he still tries his best when push comes to shove.

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Zenitsu is actually a faster learner than tanjiro and inosuke. But”he’s so lazy that the only incentive he’ll take is hanging out with girls”

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Zenitsu Agatsuma

Voiced by: Hiro Shimono (JP), Aleks Le (EN), Jose Luis Piedra (Latin American Spanish), Xavier Castañer (European Spanish), Mosè Singh (Italian)
Live actor: Keisuke Ueda (Stage Play)

'I've... been protecting it... because you... said that... this thing is more important to you... than your own life..."

Another young member of the Demon Slayer Corps who meets and travels with Tanjiro and Nezuko. Despite being cowardly and insecure, he still tries his best when push comes to shove. He fights better in his sleep than awake.

Accidental Misnaming: This happens to him after Nezuko starts talking again.

Nezuko: (to Zenitsu) "Welcome back, Inosuke."

Adaptation Expansion:

The anime adds more at the end of the group's first stay at the Butterfly Estate. In Zenitsu's case, the servant girls scold and advice him to fix his behavior around women, which could be the beginning of Zenitsu's eventual focus on Nezuko instead of random girls, which in the manga happened mostly without warning.

The video game by CC2, Demon Slayer: Kimetsu no Yaiba - The Hinokami Chronicles, adds a new variation to Zenitsu's usage of Thunder Clap and Flash as one of his basic attacks called Kiwami, it simply is a more standard Iaijutsu attack, where Zenitsu just quickly unsheathes his blade to attack and sheathes it back before initiating the proper First Form.

An Aesop: Be happy with what you finally got after being rescued from living a harsh childhood, that's Zenitsu's summarizing how his former colleague Kaigaku went through the dark path despite both of them coming from the same walk of life as former destitute orphans. Zenitsu calls it the box of happiness, people like Kaigaku must learn how to prevent the stream of goodwill from leaking through the box lest they completely ignore all good things that actually happened in their lives, erroneously coming to believe nothing good ever happened to them; that became the main difference between Zenitsu and Kaigaku, the former stopped the leaking from his box after their master Jigoro gave them a decent life and mentoring in demon slaying, the latter was never satisfied, for him Jigoro was obligated to only see one of his students as being worthy, himself, otherwise Jigoro was worthless in Kaigaku's eyes. Zenitsu ends up being the one who kills Kaigaku, avenging the fact Kaigaku's betrayal in becoming a demon led to their master commiting seppuku to atone for his disciple's betrayal.

Aesop Amnesia: Much later in the series, by the Infinity Castle arc, Zenitsu has mostly grown to be a heroic demon slayer, determined to do his part without cowering into fear or self-doubt, but for the sake of humor he will snap back, for a brief moment, to his early crying tantrums when he is in pain or scared of something.

All of the Other Reindeer: During his childhood as a homeless orphan who just tagged along equally destitute children like him, they didn't like Zenitsu's apparent coward nature and crybaby behavior, he was often abandoned by other kids who labeled him as completely worthless, however, as a teenager Zenitsu was taken in by a elderly sword master who paved the way for Zenitsu to come out of his shell, slowly but surely growing into a great demon slayer.

Asian Buck Teeth: Used for caricature comedic effect; both Inosuke and Kyojuro, saw Zenitsu having quite the buck teeth during their dream prison under Enmu's power; Zenitsu's actual normal appearance doesn't have that pronounced buck, but Gotouge says in a extra that Zenitsu does have buck teeth, it just isn't visible.

Badass Baritone: His Japanese voice acting performance, where Zenitsu talking through his sleep trance only has Hiro Shimono drop all nervousness from his usual Zenitsu voice, sounding just calm as a result. By contrast, the English performance in the Mugen Train movie has Aleks Le making his voice sound much deeper, as if trying to hammer the point harder that Zenitsu in his trance is a tough demon slayer.

Berserk Button: Don't even hint that you're hiding women from him, or are in contact with women while he isn't. Either you're a bachelor like him, or you're scum in his eyes.

Beware the Silly Ones: At first glance, Zenitsu appears to be an easily scared crybaby who overreacts to everything and throws tantrums, therefore making it seem like he isn't much of a threat ... until you learn that he's capable of using Thunder Breathing and could therefore could be a powerful fighter if he didn't hold himself back, as the Tongue Demon, the Older Brother Spider Demon, and Kaigaku can attest.

Blank White Eyes: Under intense stress to fully charge his Thunderclap Flash: Six-Fold, Zenitsu was portrayed with fully blanked out eyes, for the first time he showed the technique off. His eyes are drawn fully white later to show his imposing figure against Kaigaku, in moments Zenitsu gains the upper hand in their fight.

Blood from the Mouth: Whilst fighting the Older Brother Spider Demon, Zenitsu was poisoned and went through great stress to prepare his Thunder Breathing technique to the point he vomited some blood in the middle of his struggle; way later in the series during a comedic extra story Zenitsu vomits blood in pure excitement, as he sees Nezuko wearing a swimsuit, comically dying in the process, it's just a fun extra page though so obviously Zenitsu does not actually die for real.

Body Horror: In his bout against one of the spider family demons Zenitsu gets inflicted with a demonic art meant to mutate his body into a demonic spider creature, Zenitsu's arm begins to mutate but in desperation he finds strength to defeat the demon, he then gets rescued and put under intense care to heal his arm which by then had shrunk, starting to mutate into spider claws, in the aftermath however Zenitsu is fully healed.

Brilliant, but Lazy: Turns out to be a faster learner than Tanjiro, but only with the incentive of getting to hang out with pretty girls. Not to mention he invents a new Technique for Thunder Breathing.

Broken Pedestal: His former superior Kaigaku becoming a demon really, really makes him lose all admiration for him.

Butt-Monkey: Due his cowardly and negative forefront personality Zenitsu tends to fall in embarrassing situations due being the first to complain about the current situation he or the group find themselves in, the team going undercover in a Red Light District shows Zenitsu getting the short end of the stick pretty well.

Can't Act Perverted Toward a Love Interest: Zenitsu in his desperate attempt to get married as quickly as possible often literally throws himself on women begging for them to marry him, usually in a comedic manner, and at one other time he has proclaimed really well his love for a woman's curves; with Nezuko however he is quite tame, his crush on her is quite the puppy love, innocently presenting her with flowers included.

Canon Immigrant: Zenitsu is shown to have the artisan ability of making flower crowns in the Light Novels, he of course wants to give one to Nezuko; that happens in the manga at the very end, little epilogue panels in the final chapter show Zenitsu making one for Nezuko, it is the only legitimate way he can actually court her without embarrassing himself.

Casanova Wannabe: Hits on girls frequently but unsuccessfully, and often tries to charm Nezuko.

Character Development: Used to think small, as in he only wanted to show off as a demon slayer if it could make him the center of attention, especially with girls; later on Zenitsu starts to have more serious goals of becoming strong enough to be able to protect as many people as he can. And when his beloved master is forced to commit Seppuku in shame for another pupil of his betraying the Corps to become a demon, Zenitsu actually starts having a clear goal of wanting to become the Thunder Hashira like his master once was.

Characterization Marches On: His attempts to charm girls are phased out as the series progresses, and instead focuses the humor on Zenitsu's jealousy of the mere prospect of someone having a girl while he doesn't, and his freak-outs over harsh demon-slaying training sessions. It can be implied Zenitsu just sort of decided to make Nezuko his main goal, but the series doesn't actually show him making the resolve of forsaking chasing after someone else, and even after meeting Nezuko he tried to charm the Butterfly Estate girls. After that, though, Zenitsu isn't seen trying to charm girls other than Nezuko ever again. note

Charged Attack: Can only use his strongest 1st Form variation, Thunderclap Flash: Godspeed, twice in a day; however, by the end of series, Zenitsu has honed the ability further, being able to use it more than twice in a day.

Chivalrous Pervert: Zenitsu's colorful rant about women and their curves gave him a bad first impression with the Butterfly Estate girls, but Zenitsu is actually seriously commited to the idea of marrying someone fully intent on loving them, even when it made him suffer, as in the past there were women who entertained him, with bad intentions, like the unknown woman whom Zenitsu had eloped with and piled him with debts, where he had to be rescued by his future swordsman master, prior the beginning of the series.

City Mouse: The Databook reveals Zenitsu was born near Tokyo, and he's generally in touch with modern society and the industrial advancements of early 20th century Japan. This puts him in contrast with Country Mouse Tanjiro and Wild Child Inosuke, especially when he's the only one of them who actually knows what a train is.

Contagious Heroism: Zenitsu was more of a reluctant coward before meeting Tanjiro, the guy always had some goodness in him but his willingness to act was less prominent, with Zenitsu wanting to avoid danger as much as he could, needing some push for him to act as a hero; working with Tanjiro most of the time, however, has made Zenitsu grow quicker to act on behalf of others as walking with Tanjiro has made him face more danger than he likely would if they never became friends.

Coordinated Clothes: The haori Zenitsu wears was given to him by his master Jigoro, they both wear the same triangular symbols pattern; a later series volume extra information makes it more of a bigger deal as it directly differentiates Zenitsu and Kaigaku's views on their master, Zenitsu chose to wear what was gifted to him, while Kaigaku was also given the same haori but he didn't even wear it, this shows which disciple really respected their master.

Costume Evolution: After all is said and done, by the very end of the series Zenitsu takes upon wearing his beloved master's haori, a simple and clear way to show Zenitsu has finally succeeded Jigoro's wishes.

Cowardly Lion: The actual core of Zenitsu's character; on the surface he is cowardly, is always complaining about something, screaming at the top of his lungs that he should just run away and give up on being a demon slayer, turns out that despite of all his incessant tantrums Zenitsu never actually runs from the heat of battle, to the point he just developed a kind of trance sleep mode where he can bravely fight against his foes while being somewhat unconscious thus unable to fear what is in front of him, and as the series progresses Zenitsu becomes able to fight more as himself instead of always relying on his trance mode.

Crazy Jealous Guy: Comically becomes one towards Nezuko after finding out about her, to the point where he attacks her own brother due to a misunderstanding and later has an urge to kill Inosuke after Nezuko mistakenly calls Zenitsu by the former's name.

Crippling Overspecialization: Can only use one Thunder Breathing technique (the basic technique), but he is very adept at it, to the point he developed phases for it: Thunderclap Flash -> Six-Fold -> Eight-Fold -> Godspeed.

Crouching Moron, Hidden Badass: He's usually a wimp, but when he can still pull through when things get bad.

Crush Blush: Zenitsu does this a lot when it comes to Nezuko, from innocently presenting her with a flower to going full tomato red face in his dreams where Nezuko can actually speak normally and reciprocate his advances. His dreams sort of come true when he sees Nezuko finally speaking and thinks she did it for his sake. Of course, she currently isn't able to speak in full sentences, and she ends up breaking his heart by accidentally calling him Inosuke.

Curtains Match the Window: While this is a theme with several other characters in the series, Zenitsu is the one that sticks out the most, his whole yellow thunder theme is all over his design, blond hair, gold eyes, yellow coat and yellow tint on his nichirin blade.

Deadpan Snarker: Zenitsu does not buy into Tengen's flamboyancy, immediately thinking Tengen is completely mental for his extreme personality and demanding to be worshipped as the god of festivities and flamboyancy, insulting Tengen with sarcastic thoughts. It goes into greater sarcasm against Kaigaku, whom Zenitsu finally talks back to, Zenitsu showers Kaigaku with insults as the disciple who could never learn the first Thunder Breathing form and who couldn't be a successor to their master.

Death-or-Glory Attack: The ultimate variation of his Thunderclap and Flash technique, God Speed, is so powerful and ridiculously fast that Zenitsu claims using it more than twice in a day will render his legs completely useless, the strain on his muscles and bones is just too great; even the results of keeping it in the twice-a-day limit is very dangerous, Zenitsu felt as if his legs were broken after the fact. The only thing Zenitsu could do to improve the usage of God Speed, later in the series, is just shape himself up so he can use more than twice in a day, the drawback never really goes away.

Declaration of Protection: Zenitsu in his never-ending quest to try get himself a lover, self-declares himself to be Nezuko's protector as soon as he finds out she is a harmless demon and sister of his newfound good friend Tanjiro, as he thinks she should be protected at all costs; this is mostly used as a comic motivator for Zenitsu to get up and do his job as a demon slayer and to train harder, in a fight against the Lower Rank One however this is applied seriously, with Zenitsu actually speaking to Nezuko in his trance mode that he will protect her, shielding her from the Lower Rank's attacks as she was fighting alone till then.

Desperately Craves Affection: An integral part of his character, used for both comedic and dramatic effect, as Zenitsu grew up as a lonely orphan nurturing a strong need of belonging, wanting to be needed by those around him and eventually be loved by a significant other. Early on this is shown in his comedic failed attempts to charm girls, while the dramatic side is shown through all the challenges Zenitsu is pushed to overcome his flaws, like his cowardly behavior, in order to grow as a demon slayer, hoping others will appreciate him as their hero.

Disguised in Drag: To spare Aoi from being forcefully drafted into Tengen's mission of infiltrating a Red-Light District to rescue his contacts (his 3 wives) and exterminate a demon all three boys volunteer to take the mission in her place, but since Tengen really needed female slayers he forces the trio to disguise themselves as girls and apply themselves as courtesans. Zenitsu is the one who stands out the most due circumstances forcing him to go throughout the entire event dressed like a girl, while everyone else had already broken off the disguise during the nerve-wracking fight against the demons.

The Dulcinea Effect: If Zenitsu can't muster the inner courage he has to surpass all of his cowardice on the surface, a good way to make him focus and be brave, or at least try to, is finding himself in a situation where there's a woman in peril. Zenitsu will then stop his complaining right away and go for the rescue.

Elemental Hair Colors: Downplayed since he doesn't have electricity powers (though Zenitsu got his blond hair color after being struck by lightning), but he is the primary Thunder Breathing user in the story and has blond hair to match.

Establishing Character Moment: His proper character introduction gives all the foundation of Zenitsu's character, the bad and the good in him:

1) He is desperate to find himself a lover and marry right away.

2) He is quite easily scared and overreacts to near everything; upon close inspection, however, Zenitsu never skips on his fights when the chips are down.

3) Zenitsu says he is weak and needs to be protected, while, in fact, his strength is pure speed; his fight record and achievements do not lag behind any of his friends.

4) His tantrums makes it seem he only cares about himself, in truth Zenitsu is faithful and shows immense gratitude when he protected Tanjiro's box, Zenitsu had only just gotten close to Tanjiro, and by then he had no idea what actually was inside the box, all Zenitsu knew it was important to Tanjiro, so he protected it with his own body as a shield.

Fast as Lightning: Thunder Breathing is a swordsmanship style used by Zenitsu that channels strength into his legs, allowing him to dash at incredible speed to slash enemies with the visual effect of lightning.

Finishing Move: The Thunder Clap Flash is the only form Zenitsu has managed to learn in his Thunder Breathing style, but he has mastered it to an extreme degree where his one move is pretty much the battle finisher as Zenitsu created several phases within the technique to make the Thunder Clap Flash as powerful as he can possibly make it out to be; Zenitsu later creates a technique all by himself, the 7th Thunder Breathing form: Flaming Thunder God which is pretty much a certified battle destroyer move.

Flash Step: The main application of the Thunder Breathing style, while all demon slayers must be fast to move and quick to draw their blades a Thunder Breathing user will go beyond that and be ridiculously fast to the point even demons will be surprised by their speed, Zenitsu is so adept at the only real Thunder Breathing technique he mastered that it makes him lightning-fast to incapacitate and kill demons, making up for the lack of skill in the other Thunder Breathing forms.

Flower Motifs: In an author's description of Nezuko's thoughts on Zenitsu, Gotouge Koyoharu has stated that Nezuko, in her childlike mind, innocently sees Zenitsu as a funny-looking dandelion; Zenitsu's supernatural blond hair, and the way it stylized, does pass said impression.

Fragile Speedster: The one Thunder Breathing technique he can use makes him incredibly fast, but he lacks in other departments. The Flaming Thunder God technique, however, is both fast and powerful enough to slice through an Upper Rank's neck.

Friendless Background: A crucial point of his backstory, Zenitsu had no true friends before meeting Tanjiro, the guy really had a need to belong since he had no family, which prompted himself to try being part of any group of people when he was younger, however, Zenitsu's cowardly and crybaby moods either quickly made others want to stay away from him, or fake tolerance to later scam him. Nobody before his master, and later Tanjiro, bothered to notice Zenitsu's good qualities beyond his apparent faults.

Friendly Rivalry: Tragically ends up as only one part thinking it had any friendship in-between, Zenitsu admired Kaigaku as his colleague in training despite all the volley of insults the two threw at each other, turns out Kaigaku really hated Zenitsu and betrayed their master to seek more power as a demon, then mocking their master's suicide by Seppuku in order to atone for Kaigaku's betrayal, that made Zenitsu lose all of the little respect he had for Kaigaku, fighting and killing him.

Glowing Eyes of Doom: The anime adaptation added more fanfare to Zenitsu's absolute body stress to initiate the steps to augment the power of his Thunderclap Flash attack, in the manga it showed white eyes, the anime made it go white and then added glowing effects of light and thunder.

Green-Eyed Monster: Admits that he was more infuriated about the fact Tengen is quite the handsome man, and has three beautiful wives, than being forced to disguise himself as a female courtesan for their covert demon slaying mission, that however is Played for Laughs and is just one of the many times Zenitsu sees, or simply mistakes, other men having better luck with women than him.

Grew a Spine: The conclusion of his character arc; Zenitsu finally forces himself to grow out of his self-deprecating mental abyss, forsaking his sleep trance mode entirely, when the tragedy of his master's death strikes, going on to face the cause of said tragedy in the form of his former fellow disciple, Kaigaku, who now turned into a demon, traitor of the demon slayers; Zenitsu faces Kaigaku head on, and kills him, the older disciple whom Zenitsu was completely submissive to before due seeing himself as inferior and partially out of respect, despite their differences Zenitsu still wanted to see him as a brother before everything went south.

Happily Adopted: Having no parents and living an early life where he tried to make a living by walking in groups of equally aimless orphans, then getting saddled with a woman piled with debts, Zenitsu was taken in by a swordsman demon-slaying master; Zenitsu grew fondly of him, going on to affectionally call him grandpa.

Heroic Second Wind: Pretty much what Zenitsu's sleep trance mode amounts to, Zenitsu at first will seem completely harmless as a demon slayer, cowering and screaming his lungs out about how he cannot perform his duties properly; the demon will buy into Zenitsu's apparent incompetence, underestimating Zenitsu's capabilities and going for the seemly easy kill, Zenitsu may suffer some initial damage but then falls asleep, his trance mode kicks in and the battle pretty much turns on Zenitsu's favor with the demon in complete disbelief on how the apparent weakling suddenly became so strong; as the series progresses Zenitsu starts talking while in his sleep trance mode, showing his personality also gains a huge confidence boost, it tops off with Zenitsu not needing his trance mode anymore, he becomes confident enough to fight his battles with his eyes open.

Heroic Self-Deprecation: The darker side of his need for validation from those around him, Zenitsu harbors some deep self-esteem issues from his past where he quite never found a group of friends he truly belonged to, feeling he was useless and then getting called as such after being abandoned by past acquaintances, Zenitsu started to believe he really doesn't amount to anything as a person and only kept taking the path of the sword out of respect for his master and the waning hope that maybe someday someone will see him as their hero.

Hidden Depths:

Is much more familiar with the advancements of the wider world than one would think. For example, when boarding a train for the first time Zenitsu is the only one to know what it is, while Inosuke takes it to be the "master of the land" and tries to fight it while Tanjiro (a "country bumpkin" in Zenitsu's own words) reasons that it could be a guardian spirit. A volume's extra illustration comically shows the trio's reaction towards Tengen revealing that his mission would take place in a Red Light District; naturally Tanjiro and Inosuke have no reaction as they have no idea what that place means, Zenitsu, on the other hand, is fully red and fidgety upon hearing it and awkwardly asking both unamused boys how can they not know what a Red Light District is.

Because of his enhanced sense of hearing, he's an incredibly good musician who can play back any song after hearing it once.

Beneath his insufferable behavior and lecherousness, Zenitsu is a profoundly sweet young man, this being the reason why the people that know him are tremendously fond of him.

His Own Worst Enemy: Zenitsu is too obsessive, grabby and clingy for the comfort of the women he meets. As he approaches women with unbound zeal and behaves like a showoff, instead of approaching out of a sincere drive to help and sympathize (like Tanjiro does), said women generally dislike him. Sure, he's a nice guy... but he's no gentleman.

Holier Than Thou: Played With. While not outright stated, he feels he is more moral compared to others and constantly chastises his comrades for their antics, yet he does things that are more or less far from moral, in other words, he displays self-righteous behaviors, such as trying to propose a girl in a desperate way, creeping them out, and blame others for things that either aren't their fault or have little control of, and is even quick to assume the worst of them. When he found out that the demon Tanjiro was carrying was a cute girl named Nezuko (who was also his sister), his first assumption was that he was all lovey-dovey with her, and began to attack and scream at him for it without giving him a chance to explain.

Hypocritical Heartwarming: In a flashback, Zenitsu got into a fight with some fellow Demon Slayers when they mocked Kaigaku for not being able to perform the first form of Thunder Breathing. Zenitsu never liked Kaigaku, but he did respect him, at least before he found out Kaigaku became a demon and caused Jigoro to commit seppuku.

Hypocritical Humor: Another source of the comedy attempts on Zenitsu's behalf, it gets explored more once his cowardly lion antics start to take a back seat; Zenitsu freaks out when other people do, or he mistakes them as doing it, exactly what he himself would like to do, as in Zenitsu throws himself on a random girl imploring she marries him, when he is on demon-slaying duty, but loses his mind when he mistook Tanjiro and Nezuko as a pair of lovers instead of siblings, babbling about the serious duty that is demon-slaying, so fooling around in love is taking their duty lightly; he repeats this episode at the beginning of the Red Light District arc, mistaking the recon and rescue mission as Uzui wanting to score himself a woman to have as his wife.

Iaijutsu Practitioner: At least when he's asleep, Zenitsu can draw his sword, slice, and sheathe it so fast that you can barely even see it leave the scabbard, as seen during his "fight" against the tongue demon: one moment, Zenitsu's hand slightly twitches and exposes only a tiny bit of the blade, the very next instant, the demon's tongue is already severed. He then finishes things off by combining this with a Flash Step to decapitate his foe.

I Just Want to Be Loved: A place to belong with people who wish good things upon him, that's what Zenitsu wanted as he laments never having a place to himself by being orphaned, possibly abandoned at birth, and no one ever expecting anything out of him, labeling him as worthless; Zenitsu felt prey to people in the past who took advantage of his need to belong by faking a bond with him, using and abusing the guy. However that's all in the past as Zenitsu realizes that meeting with his master, Jigoro, changed that situation, with his master he found a place to be and someone who honestly wished him good, and that extends, even more, when Zenitsu finds Tanjiro, Nezuko and Inosuke, his honest friends.

I Just Want to Be Normal: While Zenitsu has an inner dream where everyone sees him as a hero who can be relied on to always protect them, thus being a wish of someone who wants to be special in the end, the boy used to gravitate mostly towards thinking that the demon-slaying life really isn't for a person like him, asserting that a normal, humble life where he lives quietly and builds a family is the best outcome he could ever hope to achieve.

I Just Want to Be Special: His life as an underachiever who could never really make real friends, or ever be center of attention, left Zenitsu with a burning desire that for a person like him only becoming someone special could make people truly like his company; special in Zenitsu's case means becoming a demon slayer who can defeat any nemesis and be loved by people everywhere he goes, this desire of his clashes directly with how much of a negative person he is towards himself, while deep down Zenitsu wants to reach greater heights, on the surface he thinks of himself as someone who will just die at every demon encounter thus having any aspirations would be a waste.

Imagine Spot: In the second Light Novel during the event in which Tengen, Zenitsu, and Inosuke go to the Hot Springs, Zenitsu wastes no time imagining in vivid detail how Tengen's wives, Hinatsuru, Suma and Makio, would take baths together.

Informed Ability: At the height of Zenitsu's supernatural hearing, it was stated he can even hear someone else's thoughts, however, that is never put on display throughout the series; the best showcase of Zenitsu's hearing is him being able to somehow "hear" how good a person is through their body movements, speech and breathing, that's how Zenitsu devoted himself to Tanjiro as a great friend.

Informed Flaw: During the curse induced dreams the heroes have against the Lower Rank One fight, Zenitsu appears like a caricature of himself in Kyojuro and Inosuke's dreams as a stereotypical man with overbite teeth formation in a very exaggerated manner, that contrasts greatly with his normal appearance where no flaws in his face can be seen, and that would be ok since those were just illusionary versions of Zenitsu, however in a volume extra the author does say Zenitsu really has overbite, but outside the caricature version of him it just can't be seen.

It's All My Fault: After defeating Kaigaku, in his near-death vision of the afterlife, Zenitsu talks with his master one last time, blaming himself for his master's seppuku in atonement for Kaigaku's betrayal and for the latter's betraying them in first place; Zenitsu reasons that if he wasn't such a coward and an incompetent disciple he wouldn't have brought shame to his master, that if he was as good as Kaigaku their master wouldn't have felt the need to try to atone for one of his best disciples turning over to the demons. The master however doesn't agree with Zenitsu, honestly believing Zenitsu has always been his pride and joy, as previous flashbacks shows the master supporting Zenitsu at every turn, even if he tried to run or cry, the master saw through Zenitsu's layers in that beneath all the apparent fear the boy never actually stopped trying to make through the master's training regime, all paying off with Zenitsu defeating Kaigaku who was seen as the much stronger disciple by others.

Large Ham: Zenitsu is 120% committed to honestly expressing what he feels, when he feels, by screaming it on top of his lungs.

Let's Get Dangerous!: He completely drops his usual cowardice when facing his treacherous former fellow pupil Kaigaku and showcases that he's a true heir to the Thunder Breathing techniques.

Lightning Can Do Anything: Apparently lightning can grant permanent perfect hair dyes. Zenitsu who was once black-haired got a free dye job from a lightning bolt striking him, turning him permanently blond.

Locked into Strangeness: Used to have black hair until a bolt of lightning struck him, somehow permanently turning his hair blond. The official High School A.U. has Giyu telling him to dye it black since dyed blond hair isn't allowed at school.

Lovable Coward: Despite always being terrified, he always jumps to save his friends.

Love Martyr: Thankfully for Zenitsu this is just a small part of his backstory, and he isn't exploited again in current events; due his ongoing gag of wanting a girl to marry him Zenitsu has actually found some women in the past that pretended to entertain him instead of just rejecting his desperate advances like the comedic side of his attempts usually go, those past women all tricked Zenitsu and never stuck with him, he knew those women were bad but he really wanted to have someone by his side, fearing he will die alone as an orphan since childhood.

Meaningful Name: His given and family names are rooted in his character:

Zenitsu means "goodness", shedding light on his deeply good natured personality underneath his apparent immediate flaws such as his whininess and cowardice.

Zenitsu's family name, Agatsuma (我妻), can be read as Wagatsuma meaning "My Wife", it can be related to the running gag of Zenitsu being desperate to find himself a wife, as he sometimes upstages his attempts at charming girls with the immediate proposal of marriage.

Metallic Motifs: A blade, katana in particular, Zenitsu was motivated by his master Jigoro to be like a blade during its forging, to constantly be purified and focused on the one thing it matters: mastering yourself to eventually become unbreakable steel. Zenitsu's development as a demon slayer goes exactly like the katana forging process; his Thunder Clap and Flash technique even has an added deeper meaning to its stronger forms, Zenitsu literally calls them "Folds", not only he is folding the angles of his dashing but also "folding himself" like forgery processing, making him, the blade, a better molten steel. At the end, to hit the point home, Zentisu's actual nichirin blade is the only one out of his companions Tanjiro and Inosuke that never breaks throughout the series.

Mood-Swinger: Played for Laughs whenever a scene calls for getting Zenitsu out of his comfort zone, that is getting him to go through a demon-slaying mission despite his cowardly tantrums, Zenitsu will go from a seemly well behaved person to an incredibly nervous train wreck, yelling at the top of his lungs about how he is going to die at any second; another is getting him to train under a deadly regime, Zenitsu will immediately lose his mind and curse whoever thought of planning that training session, and when Tanjiro is there to make a counterpoint about how a deadly regime can get them better results at getting stronger, Zenitsu will unleash his fury at someone he once said was his great friend, only to pull a complete 180 degree turn on Tanjiro once he praises Zenitsu for being an important reference to others training as well, making Zenitsu then think his presence at the program really is necessary and that training isn't so bad after all.

Motor Mouth: In his fits of rage over attracting girls or believing someone else has a girlfriend, he'll start delivering huge speeches over how they're scum, according to himself, and that they should be ashamed. If you try to interrupt him, he'll get even louder.

Multicolored Hair: He has blond hair with orange ends.

Mundane Utility: Zenitsu's superhuman sense of hearing came in very handy during the undercover investigation in the Red Light District arc, as he disguised as a cross-dressed courtesan didn't quite have the looks to pass himself as a beautiful woman but could still entertain guests with his Shamisen playing skills, his super-hearing could make him be fully capable of playing any song he had heard just once, as the sounds are perfectly ingrained in his memory.

Mysterious Past: In contrast to his fellow main characters, Zenitsu's past isn't shown in much detail, and anything before his life as a young child who lived among wandering children is completely nebulous. The first databook reveals Zenitsu was born near Tokyo, but who his birth parents were, why they abandoned him, or who actually named him isn't ever disclosed. The second databook released after the series' end, which contains specific family trees for the characters, follows with not saying anything about Zenitsu's birth parents, it simply states he was born out of a father and a mother, both nameless factors; in the end Zenitsu's story was truly about the destination, his birth parents truly may be completely irrelevant, just another case of child abandonment.

Near-Death Experience: In the aftermath of Zenitsu's winning bout against Kaigaku he has a vision of the river of death, Zenitsu sees his beloved master on the other side, Zenitsu apologizes for not being a good pupil and preventing his death. The master, however, cries tears of joy and tells Zenitsu he has always been his pride and joy. Zenitsu tries to cross the river to his master's side, but spider lilies bind his feet, preventing him from crossing over, symbolizing how it's not Zenitsu's time just yet, before he gets reanimated back to life.

Necessary Drawback: As the series progresses Zenitsu steadily becomes one of the fastest beings in the story, but the drawbacks of his Thunder Breathing techniques never fade away, Zenitsu only works around making the extreme muscle fatigue on his legs take longer to kick in after continuous usage of his abilities; that limitation is put into place so Zenitsu doesn't become an untouchable speedster without limits, otherwise he would be an unparalleled demon slayer, with very few equals.

Nervous Wreck: Zenitsu is a capable guy when he finds the courage to brave through killing demons, or just resorts to his trance sleep mode where he fights in a state where fearing the enemy isn't possible, but he tends to freak out like no tomorrow at every single thing before he shows his true colors.

Nice Guy: Don't let his apparent cowardly antics fool you, Zenitsu is actually just as much of a nice guy as the ever selfless Tanjiro is; Zenitsu has gone on record of being nice to people he had only met for minutes at most, and being good to people he actually knew didn't even like him because Zenitsu just wanted things to be better, and even Inosuke whom he is always butting heads with, Zenitsu tried to cheer him up along with Tanjiro after the Spider Family fight left Inosuke feeling he was weak and useless.

No Indoor Voice: While nowhere as constant as Inosuke is about this trope, Zenitsu gets loud when he vocally expresses subjects he is passionate about, specifically pertaining to pretty girls.

No Listening Skills: Despite his enhanced hearing, he is hardly a very attentive listener. He often speaks and screams non-stop even when told to. In his jealous state, he completely stops listening to reason. He insists he has any say, while he refuses to let anyone who attract girls or he thinks they are flirting with someone talk, even telling them they are fantasing when he is told the true version of the story, despite being the one who is overthinking. When he saw Nezuko for first time, he didn't listen to Tanjiro trying to tell him she is his younger sister who was turned into a demon the night his family was murdered, trying to kill him, thinking she was his girlfriend. When Tengen tasked the trio to help him infiltrate the Red District, he didn't listen to Tengen telling him he sent certain people (his wives) to infiltrate there to hunt a demon, assuming he asked the trio for help to find a bride, despite being already married, even telling him he is fantasing everything when he told part of the real version of his story, much to Tengen's annoyance.

No Respect Guy: In spite of his relatively equal level to Tanjiro, he gets no recognition for his merits (especially from girls) because he's lazy, complacent, wimpy and cowardly. He's a good guy and an excellent warrior, but he's incredibly annoying.

Noodle Incident: Zenitsu's troubled past with people who took advantage of his desperate sense of belonging is never explored in detail, he alluded to in a single sentence during the Drum House arc that there were vixens other than the woman he eloped with before that were just as bad, if not worse, in abusing his goodwill. Said past trauma is never brought up again, not even in other publications.

Not a Morning Person: A tiny bit of information contained in one of the Extra chapters published with the 2nd Fanbook, after the manga ended; Tanjiro informs that Zenitsu at first had to adjust himself to the early morning routine of the Kamado family after he moved into their home at the end; since Inosuke has always been a mountain boy he didn't have the same morning issue.

Offscreen Moment of Awesome: A few moments where Zenitsu uses his body to protect others take place completely offscreen, the first being where he saves Shoichi from a fall out of the Drum House's upper floor, Zenitsu apparently saved the boy and hit his own head in the process, bleeding from the concussion; another is during the Mugen Train arc, Zenitsu saved Nezuko and a few passengers by embracing them and taking everyone out of the colliding train after Enmu's defeat, yet again hitting his head hard, bleeding from the impact.

One-Hit Kill: with Zenitsu's signature Iaijutsu discipline for his Thunder Breathing, his fights against demons who don't measure up to him usually end in a single attack of his, a swift slice through the neck, instant decapitation.

OOC Is Serious Business: He completely drops his normal cowardly attitude when confronting Kaigaku for becoming a demon, causing their master to commit seppuku alone and leading him to die a slow and agonizing death.

Parental Abandonment: It was briefly touched upon that Zenitsu has no parents, although it hasn't been revealed whether they abandoned him or they died (though Zenitsu believes they abandoned himnote ). After living a harsh early life Zenitsu was taken in by his Demon Slayer master, who Zenitsu views as his grandpa.

Prone to Tears: Boy does he ever, it is mostly used in comedic effect to either show Zenitsu reacting to being rejected by a woman for the umpteenth time or his crushing fear of fighting against demons while being a professional demon slayer himself; however, there are memorable times where his tears were used for dramatic and awesome moments.

Rage Breaking Point: Zenitsu had a very subservient relationship with his elder colleague disciple Kaigaku, the latter couldn't stand the former's presence due Zenitsu's difficult behavior as someone with low self-esteem who seemly wasn't showing much progress while being trained under the same master, even so Zenitsu tried to make things work with Kaigaku by respecting him; all goes down south when Kaigaku betrays the demon slayers to become a demon himself and as a form of atonement their master commits seppuku to pay the price of shame, with that Zenitsu loses all little respect he had for Kaigaku and showers him with insults and hard truths in their fight to the death, to the point Kaigaku even sarcastically compliments Zenitsu for finally talking back to him.

Rank Up: Zenitsu starts his career as a Demon Slayer as the lowest 10th rank, Mizunoto, after the Mugen Train arc he rises to Kanoe, 7th rank; the Infinity Castle arc starts with him as Hinoe, 3rd rank, three steps away from becoming Hashira, which is only revealed in the 2nd Databook.

Rousing Speech: In the later moments of Muzan's fight, in the Infinity Castle arc, after many slayers have been battered up to near-death, and Tanjiro had just been hit by a powerful shockwave emitted by Muzan, everything looks dire; Zenitsu steps up to save Inosuke from an attack and pushes himself to lift Tanjiro's morale up, as the latter laid down in almost a convulsion state, telling him that he cannot die, Tanjiro has to live through that incredibly deadly fight and go home with Nezuko, who had just turned human, Zenitsu being alive and boosting his morale moves Tanjiro to tears. Zenitsu who was once a cowardly slayer, who had to be pushed over the edge and motivated to fight, now steps up on behalf of others, motivating them as well.

Running Gag: At first it seems the jokes on Zenitsu's behalf are those played upon his cowardice and wanting to score a girl, in truth it is his extreme mood swings that form a circle around all the attempted humor with his character; coward tantrums, wanting to impress a girl, losing his cool over harsh training sessions, having little patience for eccentric personalities (while he is one to talk), jealousy of others having a mate, all of that is to instigate an extreme chain reaction of emotions on Zenitsu.

Sad Clown: Though hammy and emotional on the outside, when one of Enmu's henchmen breached Zenitsu's subconcious, it was a pitch black blank devoid of any hopes and dreams made manifest like the subconciousness of Rengoku, Tanjiro and Inosuke's. A life of abandonment, loss & betrayal had left Zenitsu's heart so hollow and bereft of hope for the future, all he has to live for is the present; until he met Nezuko.

Screams Like a Little Girl: Part and parcel with his No Indoor Voice and Large Ham personality, Zenitsu screams every emotion on the top of his lungs, especially when he is terrified. It's a testament to the skill, comedic timing and vocal-chord strength of Hiro Shimono that he has not lost his voice after his introduction arc.

Selective Obliviousness: Jumps to conclusions when he sees Nezuko for the first time, attacking Tanjiro believing that she was his lover. Once he learns she is his sister, his treatment of him was never brought up.

Serial Romeo: Zenitsu immediately forgets about the previous woman he desperately asked to marry him upon finding a new target; the only one he hasn't let go is Nezuko, partially because he might like her more than his usual crushes on first sight and that Nezuko is a nice demon girl in a state of mind where she really can't decide or understand complex things yet, she is just nice enough not to repudiate Zenitsu on sight.

Shock and Awe: Thunder Breathing adepts have lightning sparks all over their techniques, Zenitsu is given more fanfare due to how much he overexerts his usage of the Thunderclap Flash; however, all the lightning is just a visual effect of portraying elemental affinity to the technique's main aspect, speed. That said, the times where Zenitsu used his technique to its fullest potential at given points in the story, it was noted a sound "like thunder" could be heard coming from his actions, implying Zenitsu is actually breaking speed barriers when he goes all out.

Shown Their Work: Zenitsu's strongest attack shows Gotouge did the proper homework on the effects of such insane speed, the 7th Form: Honoikazuchi no Kami has Zenitsu's haori starting to be thorn apart on his way to behead Kaigaku, showcasing just how fast Zenitsu is at that moment, guaranteed super sonic speed at the bare minimum, in order for the air friction to start burning his clothes off.

Significant Wardrobe Shift: Zenitsu at the beginning of the story was a meek, whining and reluctant demon slayer, he only became a warrior to show gratitude towards his master Jigoro, who once saved him, wearing a bright yellow haori, given to him by Jigoro which is themed after his own haori. In the very end of the series Zenitsu takes up his master's haori, who died before Zentisu could show how much stronger and courageous he grew to be, but Jigoro could see that from the afterlife, personally congratulating his pupil, thus Zenitsu has successfully inherited his master's will after he has helped to kill the source of all demons.

Single-Stroke Battle: When Zenitsu fights against weaker demons it goes accordingly to the theme more precisely, in one single stroke of his Thunder Breathing Style, which invokes an Iaijutsu discipline, Zenitsu quickly dispatches the foe with a swift slash to the throat; on longer battles however Zenitsu tries to charge his speed to a ludicrous degree till he blitzes through the area, all to find that sweet spot to behead the enemy.

The Slacker: In Zenitsu's case it is more of a combination of his bad self-esteem and fear of getting hurt in any way possible, so he hates any kind of training that will force him to put more effort than he personally would like to give, with that Zenitsu must really be coerced in a way that will make him go through it even if complaining along the way, two popular methods are he himself feeding on his dreams that getting stronger will make Nezuko fall for him, and the other is filling him with praise, Tanjiro honestly believes in Zenitsu so that usually works, but also Shinobu pretended to cheer Zenitsu up to get him going. The tragedy with his master's death made Zenitsu be serious about his training and future without others forcing him, however.

Sleepwalking: Except with fighting. He fights with pure instinct when unconscious.

The So-Called Coward: His constant cowering against having to face demons in battle already looks odd enough due Zenitsu never actually running away from his duties as a demon slayer, crying on the way to battle but still fighting nonetheless; the full realization comes when Zenitsu's rivalry with a former colleague of his comes into play, Kaigaku was said to be Zenitsu's total opposite, he actually learned most of the Thunder Breathing forms and always made sure to brush on Zenitsu's face how much of a failure and a coward he was, but in the end it was Zenitsu who stuck to the Demon Slayer corps always fighting against demons, while Kaigaku was revealed to be a true coward who immediately threw his life away for more power as a demon; resulting in Zenitsu killing his supposed stronger colleague turned traitor.

Spell My Name with an "S": While Zenitsu is the most common way his name has been spelled for western audiences, a more proper romanization would be Zen'itsu to indicate its correct pronunciation, there's emphasis on the Zen (Zen - i - tsu) instead of saying it like Ze - ni - tsu. Then there's the author herself trying to give it an original spin, Gotouge has said the emphasis on the "tsu" should be bigger than on "Zen".

Split Personality: A downplayed example; Zenitsu at first glance is cowardly and whiny, however, the sleep trance he developed for unconscious combat is pretty much the ideal version of himself that Zenitsu dreams, but thinks it is impossible, of becoming. In later events when Zenitsu starts talking during his trance, he is shown to be very brave and just, fully in tune with all the results of his Thunder Breathing training, in this state Zenitsu remembers everything that happened while he was awake, meanwhile the normal Zenitsu does not remember what he did during his trance, furthering his own perception that he is weak and worthless. In truth awake Zenitsu and trance Zenitsu are the same person, it's only that during sleep Zenitsu removes all of his immediate flaws, which eventually reaches the natural conclusion of Zenitsu forsaking the need of his trance, becoming a hero fully aware of himself.

Super Hearing: His hearing is very acute, and he can even tell people apart by the way their bodies sound.

Super Speed: While the most capable Demon Slayers have superhuman speed by default - they couldn't keep up with the much stronger demons if they didn't - Thunder Breathing adepts are on a tier of their own. At the peak of their abilities even demons cannot keep up with their speed; Zenitsu, when he gets serious, moves so incredibly fast that even two Upper Ranks were not able to follow him at all.

This Is Unforgivable!: Zenitsu was absolutely pissed at Kaigaku for becoming a demon, resulting in his master committing suicide to atone.

Through His Stomach: Comically asked Nezuko to marry him on the prospect of feeding her Sushi and Eel every day, which resulted in a failed attempt because Nezuko's mind as a demon was not able to understand what Zenitsu was proposing on that event. Plus, Zenitsu's attempt gets ruined when Nezuko calls him "Inosuke".

Throw the Dog a Bone: It seems like he and Nezuko do hook up after the fight with Muzan, seeing as how their descendants in Modern Day Tokyo bear a resemblance to him and her.

Too Kinky to Torture: As long as the one doing the "Torture" is female, he won't mind at all.

a shining example is the fight against his former colleague pupil, Kaigaku, who betrayed their master and team by turning into the very demon kin they are supposed to hunt, Zenitsu fought against someone who was touted as superior to him as a human, then becoming a demon even more powerful than a regular demon, and Zenitsu actually won. Zenitsu has even toughened up to fight against Took a Level in Badass: As the series progresses Zenitsu starts having more battles in which he doesn't cower into his sleep trance mode to fight without fearing his opponent; Muzan in his strongest form and managed to damage Muzan for everyone fighting him.

Unconscious Objector: Zenitsu has defeated enemies while unconscious.

Undying Loyalty: The shining quality that makes Zenitsu stand out beyond his apparent cowardly and whiny behavior; Zenitsu will bury all his flaws within when it comes to giving his whole self for people who were honestly kind to him and believed he could reach greater success in life. Zenitsu is at first scared of fighting demons as he fears he could die at any moment, but Zenitsu's master trained him with so much care that he will never abandon the sword; Tanjiro is such a good-natured person that Zenitsu pretty much decided quick enough that Tanjiro is someone whom he should unquestionably trust and put his life on the line by facing all sorts of mortal battles with.

Unexpected Successor: Among Jigoro's students there was a clear divide between the eldest disciple Kaigaku and the youngest Zenitsu; Kaigaku was a seen as the much stronger one, who was keen on being Jigoro's successor, while Zenitsu had no expectations on being Jigoro's chosen one at the time, as the boy seemed to lack talent and any drive to push forward. However, throughout the series Zenitsu slowly but surely grows past his limitations, and Kaigaku turns out to be a nasty traitor who becomes a demon, who Zenitsu then kills. In the end Zenitsu wears Jigoro's haori, being his sole successor, Zenitsu himself never thought he would be the one to succeed his master.

Unlocking the Talent: Zenitsu is of the lazy and extremely self-depreciative variety, he was brought in by a sword master by pure chance, as Zenitsu was piled with debts after eloping with a woman who didn't care for him until his master rescued him from that predicament thus Zenitsu never really saw himself becoming demon slayer, it just happened. Zenitsu endured the hard training imposed on him but it seemed Zenitsu had no talent at all, he just couldn't learn any Thunder Breathing form beyond the first one, said to be the most basic and easiest to learn, however as the series progresses Zenitsu slowly but surely is pushed by those who care for him to break through his mental blocks and show that he has some talent underneath; Zenitsu has pushed the most basic Thunder Breathing form to unseen heights, making it a terrifying technique against demons, and later he creates his own form: the 7th Style - Flaming Thunder God, which is quite the battle finisher move.

Unusual Eyebrows: The forked kind.

Up to Eleven: Zenitsu is the only out of two characters in the entire series, yes even counting the Hashira, to portray an astounding feat of speed by the final arc that automatically placed him on a tier of its own in terms of pure speed, indicated by his clothes starting to rip apart due air friction during his 7th Form: Honoikazuchi no Kami, that accurately showed his speed as beyond super sonic at that moment; the only other character to show a superior feat of speed is Yoriichi, and that is the strongest character in the entire series, a borderline divine man.

When All You Have is a Hammer...: Only managed to learn one of the Breaths of Lightning techniques, Thunder Clap Flash. When that doesn't work, he just does it faster. However, he then managed to invent a seventh Thunder Breathing technique which he uses against his former superior.

Wild Take: Despite its somber tone with all the demon-slaying the series does not shy away from many comedic moments, the characters pull the most extreme face reactions imaginable, Zenitsu is the undisputed king of it as he is the resident overreacting wreck of the bunch.

Would Hit a Girl: Zenitsu's sense of justice is greater than his very pronounced love of women, he drops any pretense of holding a vow of never hitting a woman if it is a very vain, abusive courtesan who turns out to be a demon in disguise; to note Zenitsu is completely set on passing judgement on Daki for her evil deeds, to the point he never cares about how beautiful she is.

Wouldn't Hit a Girl: In his self-proclaimed status as a gentleman Zenitsu says he won't harm girls, not even throw tea on them despite it being part of the focus and agility training in his first stay at the Butterfly Manor, however this gets him no applause from Aoi, and the other girls as they overheard Zenitsu's colorful rant about women, their curves and how he longs for even catching a glimpse of them; against demons, on the other hand, Zenitsu doesn't play the gentleman card, if it's a human devouring monster Zenitsu won't care if it is female, he will go for the kill.

You Are Better Than You Think You Are: The driving force on the arduous path to make Zenitsu grow up. The boy has abysmal self-esteem thus he thinks nothing will ever come out of him putting any effort in doing anything by himself, that's where people who expect something out of Zenitsu come into place to give him that much-needed confidence boost, his master Jigoro was the first to see something underneath Zenitsu's layer of cowardice and laziness, Tanjiro was the second; in the moments Zenitsu realizes there are people out there who believe in him, those are the events where he shows what he can really do, and he does not disappoint when things get going.

Your Eyes Can Deceive You: The setting doesn't bother explaining how Zenitsu can even tell his surroundings so precisely during his sleeping trance mode, with his eyes completely shut, because that should be rather obvious since Zenitsu is explicitly said to have super hearing as one of his abilities thus Zenitsu's form of combat while in trance invokes the same image of the famed Blind Weaponmaster in Japanese tales, who can tell his surroundings with his hearing sometimes even better than those who can see.

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Demon Slayer: Kimetsu no Yaiba: Zenitsu Agatsuma / Characters - TV Tropes

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Following Go To 'I've... been protecting it... because you... said that... this thing is more important to you... than your own life..." Another young member of the Demon Slayer Corps who meets and travels with Tanjiro and Nezuko. Despite being cowardly and insecure, he still tries his best when push comes to shove.

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Kokushibou has been uppermoon 1 for four centuries. Before he was a demon his name was Michicatsu Tsugikuni. He is a rare type of demon because he used to be one of the first breathing technique hashira. He was also one of the first concentrated breathing users. His breath is moon breathing. It is a breath that has 16 forms. The breath looks like crescent moons that change shape while moving. His blood demon art allows him to make sword blades out of his body. His sword is made out of his own flesh meaning it can regenerate like him. He can lengthen his sword and add other blades onto it. It is unknown how many hashira he has killed.

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Doma’s blood demon art is cryokinesis meaning he can control ice. He can also put a person in his body and digest them like that. Doma is 133. It is unknown how long he has been uppermoon 2. But we do know that when he made gyutaro and Daki demons he was upper 6. He is incredibly fast and strong. It is unknown how many hashira he has killed.

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Akaza has been uppermoon three for an unknown amount of time. We do know that every demon kokushibou faced was absorbed except him because kokushibou saw potential. His age is unknown ,but we do know that his real name is hakuji. He was turned into a demon at age 18 because Muzan was saddened that such a strong warrior had lost the will to fight. He lost the will to fight because before his wedding the well for the dojo had been poisoned. His fiancé and master died. The people who poisoned the well were a enemy dojo. When Hakuji(Akaza) found out who poisoned the well he went to them and killed the. Muzan changed his memories so that he would keep getting stronger. We know that Akaza recently killed the flame hashira Kyojuro Rengoku ,but other than him we don’t know how many hashira he has killed.