Hanagaki Takemichi  

Takemitchy, 花垣 武道

Takemichi is a 26-year-old man who has never had a romantic relationship before. One day, he discovers that the only person he ever dated in middle school has passed away. As a result, he is transported back to his middle school years through an accident. He decides to change the course of events and save the girl by becoming one of the most powerful delinquents in the Kantou region.