He has a superiority complex, always wanting to be the best at everything and trying to prove it at all costs; However, even with those traits, he knows how to admit when he has been defeated, as demonstrated during the Test Battle , when at the entrance to the academy, Izuku tried to explain to him that his One For All Gift came from someone else, and Katsuki interpreted that he was making fun of him, so he tried to shut him up by saying that he just beat him. [3]