The Purpose of Narrative Text is to amuse or to entertain the reader with a story.

C. Generic Structures of Narrative Text

1) Orientation

Sets the scene: where and when the story happened and introduces the participants of the story: who and what is involved in the story.

2) Complication

Tells the beginning of the problems which leads to the crisis (climax) of the main participants.

3) Resolution

The problem (the crisis) is resolved, either in a happy ending or in a sad (tragic) ending

4) Re-orientation/Coda

This is a closing remark to the story and it is optional. It consists  of  a  moral  lesson,  advice  or  teaching  from  the writer

The basic competence of learning this topic are students are able to respond and understand the meaning of narrative text and its language feature to be used daily life, as well as students are able to express the meaning and identify the steps used in narrative text.
While the learning objectives of learning the topic as follow:

Myth
What is a myth? It is a traditional or legendary story, usually concerning some being or hero or event, with or without a determinable basis of fact or a natural explanation, especially one that is concerned with deities or demigods and explains some practice, rite, or phenomenon of nature.
Example:

Folklore or Folktale
Folktales are stories in the oral tradition, or tales that people tell each other out loud, rather than stories in written form. They're closely related to many storytelling traditions.
Example: