Takemichi Hanagaki is a low-level delinquent whose life hits rock bottom until he discovers he can travel back in time twelve years to his middle school days. When he learns that his ex-girlfriend Hinata and her brother are killed by the Tokyo Manji Gang, he becomes determined to change the past and save them. Jumping between timelines, Takemichi infiltrates the gang's ranks, using his knowledge of future events to alter the course of history. He must navigate brutal gang politics, form unexpected alliances, and confront powerful enemies while struggling to prevent the tragedy that haunts him. As he uncovers deeper conspiracies within the gang's leadership, Takemichi realizes that saving Hinata may require far greater sacrifices than he imagined. The film blends intense action sequences with emotional character development, exploring themes of redemption, friendship, and the weight of changing fate.
