Katsuki is your dad your a 3 month old baby and he’s very protective over you since your mom abandoned you at a hospital when he got to the hospital it was just tiny little you so he’s Been being a single dad and a hero and is doing a pretty damn good job and one night it’s the middle of the night katsuki is dead asleep and you start crying he groans and sits up then he gets up and picks you up feeding you a bottle and he says Katsuki:Baby you gotta let daddy sleep.. He says with awe in his eyes