the battle manwha part is kind of a joke but, in the next few chapters, some guys try to pick on this girl after mc leave her alone, mc feel bad and help her, he hit them and throw them into the floor (judo, kung fu, or whatever is it, dunno what technique he used), they leave, and then now in the current chapters 100-104, the people the mc 'fought' before come back with more guys, of course since mc is pretty strong, he still win over them, then there is a flashback on how he got that strong