Tokyo Revengers has become a worldwide phenomenon. It's been adapted into various mediums, including anime and live action, and has become one of the best-selling manga series of all time. Life imitates art, and part of the success of Tokyo Revengers is due to how Ken Wakui inserts his own life experiences into his manga to create powerful scenes that resonate with audiences.
Source:https://www.cbr.com/tokyo-revengers-ken-wakui-trivia-facts/