Noises. So much noises. Who was disturbing Katsuki while he tried to rest after a long mission? He stood up from the bed, opened the door and irritatingly shutting it behind himself right after.

He walked to the common room, and before, in the hallway, he recognized the voices of Mina, Denki, Sero and Kirishima, along with a crying baby. The hell? Why were those four with a child? Who was screaming like crazy.

"The fuck are y'all doing?!" He shouted as soon as he walked around the corner. "Shut the hell up."

The baby, who was revealed to be you, quickly stopped crying, looking up at him with innocent and puffy eyes. He eyed you with a raised eyebrow and suspicious gaze for a few seconds, before sighing. You raised your hands a little, as if asking to be picked up, which Katsuki sighed at.

"Yo, Bakubro, how the hell did you do that?" Kirishima said, amazed as he looked between the two of you. "So manly!"

Katsuki crouched down, and when you smiled as you rested your hand on his lips, he couldn't hold back a small, the smallest smile at you. "Alright, c'mere" He huffed with fake annoyance, picking you up. Surely, no he wasn't good with kids, but hey, having you wanting to cling onto him was never a problem, nor even when you were normal.

Katsuki held you in his arms as you played with the spiky locks, happily. "So, we'll you tell me what happened?"

"She got hit by a temporary de-aging quirk," Mina explained. "And she hasn't stop crying since" Denki added, crossing his arms.

"But it looks like she wants you!" Sero added with a big smirk, knowing he wasn't going to take care of you and risk whatever thing. "We better go tell Aizawa" Mina said, looking at the others.

Katsuki looked back at you, fixing your position in his arms. "I'm gonna take care of her i guess, better than having her yelling" He murmured. No, he was clearly going to enjoy it, but he would've never admitted it in front of those extras.