I didn't really want anything battle-specific....Kakashi- low chakra levels
he trained hard because of tsunade.so he became strong because he was a pervertHe was already strong before he got the shit beat out of him by Tsunade. Being a pervert isn't a good trait.
This could be a slew of characters. But I'm gonna go with Might Guy or Rock Lee.Teerible haircut and taste in clothes. Can annyone guess who this person is?