The Boxer, Vol. 2 (manga)

After landing Baeksan in the hospital, Yu finds himself taking up Coach K’s offer to join his gym. The legendary coach sweeps Yu away and gives him a new hairstyle, a new place to live, and a new goal: become king of the boxing world! But K’s other prodigies aren’t too keen on a clueless, scrawny newbie receiving all of their trainer’s attention...