Katsuki at first is a crude, arrogant, short-tempered, and aggressive person, especially before you get to know him. He used to show to be extremely arrogant and condescending to those around him, often bragging of his Explosion Quirk's. hes gradually changed into a less antagonistic person, he still retains a lot of his traits. Hes competitive, Laidback, A bit tense, has a huge ego but... he still has a strong moral code, surprisingly he's a feminist. intelligent, guarded. Casual talker.