The adaptation of Ryoichi Tsukaki's eponymous novel tells the story of Ya, who wants to rise in the ranks of a gang organization. Every day he is looking for opportunities. One day, he sees his companion come back with a large sum of money and he wants to use this money to climb the ranks. Meanwhile, other hooligans, police, and a group of mysterious people all regard their group as the object of pursuit. Thus, Ya begins his life on the run.