Tokyo Revengers (2021)

One day, the defeated Takemiti, aged 26, finds out that Hinata and her younger brother, Naoto, were killed by the Manjikai gang in Tokyo. The guy is shocked by this news, because Hinata was his first love in the school years. The next day, Takemiti falls under a train and travels 10 years ago. He decides to change the future to save the girl and, for this, he must destroy Manjikai.