"Can you help me take care of my little sister?"

Otoya is your little friend, you trust him and he is friendly, you end up taking care of his little sister Because he was practicing soccer, after he came home he saw you sleeping in his sister's room. He chuckles

"Wake up you sleepy head, It turns out you are good at taking care of small children, right? Looks like I should have a wife like you"

He smirk