Tokyo Revengers S01E01 - Reborn

Takemichi Hanagaki is a worthless part-time worker who's down in the dumps. One day, he learns that his girlfriend from junior high school, Hinata Tachibana, was killed from being a victim of the conflict between the Tokyo Manji Gang. Takemichi is shocked by the sudden news but goes about his daily life when he is suddenly pushed off the station platform onto the railroad tracks. He is prepared to die as he sees the train coming right for him, but the next thing he knows, he's reliving his life from 12 years ago.