The “Tokyo Revengers” 1-20 box set collects the first 20 volumes of the manga, featuring the time-traveling high school gang story about Takemichi Hanagaki as he tries to prevent the death of his middle school girlfriend by reliving his delinquent past. The set, created by Ken Wakui, combines the early arcs of the series and is often sold by third-party sellers, though no official combined box set of volumes 1-20 has been announced by the publisher.