characters; a boy and a mermaid.
what they want; they wanted other people to acknowledge the existence of mermaid.
problem; the society did not allow people to have any daydreams.
climax; the boy run away from a prison and went to the place where he met the mermaid for the first time.
in the end; the boy became a mermaid
in the future; they will live together happily in the sea.
theme; it is sometimes important to penetrate one's belief.