Takemichi met Hinata when they were in middle school, but she was killed by the evil alliance known as the "Tokyo Manji Gang," which even the police cannot touch. Currently, Takemichi lives in a run-down apartment, and due to the death of his girlfriend, he manages to jump back in time 12 years, returning to his golden days as a delinquent in middle school. To save Hinata and change his life spent on running away, Takemichi vows to take revenge on the Tokyo Manji Gang!