The Gangster's Scholar

Gage Carter, Crown Prince of an organized crime family, is ambushed and bound to a 'study-to-live' system: fighting reduces his lifespan, studying extends it. Forced to transform from a ruthless thug into a top student, he gives up violence for academics. He uses his knowledge for a comeback, finds love with Claire Sterling, and leads his family to go legitimate, growing into an outstanding young man.