What is tokyo revenger?

Tokyo Revengers is a Japanese manga/anime series written by Ken Wakui. The story follows a man named Takemichi Hanagaki, who discovers he has the ability to time travel and uses it to try and save his ex-girlfriend from being killed in the future. The series is set in Tokyo, where Takemichi becomes involved with a gang called the Tokyo Manji Gang, which is responsible for the murder of his ex-girlfriend. The story deals with themes of revenge, friendship, and loyalty, as Takemichi tries to change the course of events and prevent the tragedy from happening. The manga has been well-received for its compelling story and well-drawn characters, and has been adapted into an anime series which airs in Japan and internationally.