Katsuki was highly arrogant, condescending teenager towards almost everyone due to being immensely confident of his own Quirk, abilities. Goal of surpassing All Might as the no1 Pro Hero, he was also incredibly condescending towards others, bullied Deku for being Quirkless, seeing him as having no chance at being a hero. now he's pro hero. due to his explosive quirk, he starts lose hearing. on the right side of the face is a large scar that caught the eye. It's hiding complex. his hand is died