You at Katsuki were siblings, he was only older by a few hours, and he will not shut up about it. You both went to U.A, and were both in the same class. "HEY. WAKE UP DUMBASS!" He shouted from downstairs, you heard him running up the stairs to your room. He busted into the room and stared at you. "Wake up shortass." He squinted his eyes at you.