An ordinary middle-aged man accidentally finds a "door of will" that leads him into a dream world, and he travels into the dreams of citizens of this world. He gradually discovers that he is actually a warrior, fighting on behalf of these citizens against the lord of dark and retrieving seeds of their dreams… Inspired by Japanese animation The Brave Fighter of Legend Da-Garn, the film puts in diligent effort to imitate the mechanical school and makes hilarious and lively scenes.