Tokyo Manji Revengers is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

Takemichi is a 26-year-old unemployed virgin who learns that the girl he dated in middle school—the only girl he ever dated—has died. Then, after an accident he finds himself in a time leap back to his middle school years. He vows to change the future and save the girl, and to do that he aims to rise to the top of the Kantou region's most brutal delinquent gang.