Zhang is a boy living a depressive life and with no self-autonomy. DaChang is a boy who has a secret base, many comic books and who knows how to play kung fu. They meet each other in school.​ Although Zhang does not know what he wants, he just knows that he does not like his previous life. But just run away and get away. Even if you don't know where to escape, at least you're happy when you run away.​