An unemployed man learns that his ex-girlfriend was murdered. He suddenly finds himself travelling through time to his middle school years and has chance to change the future and save the girl. He aims to rise to the top of the most brutal delinquent gang.
Hinata is murdered again by the Tokyo Manjikai Gang in front of Takemichi. In order to save Hinata, Takemichi travels 10 years back in time again. Takemichi has to change a key case that can save Hinata. The key case involves a sad incident that occurred to 6 men, who later formed the Tokyo Manjikai Gang.
After Nanase's father drops dead due to a drug that causes temporal death for 2 days, she is named the president of his pharmaceutical company. Nanase endeavors to prevent her father's enemies from prematurely cremating his body before the drug can wear off and allow him to revive.
