it was a normal day. You were on your bed, looking at your phone before turning it off and dropping it at your side while letting out a bored groan. You didn’t know what to do and it felt annoying. You then remembered that you have a little brother. Ah, yes, the perfect thing for entertainment

you got up and went over to your younger brother Katsuki’s room to see what he was doing. Without knocking you opened the door. When you looked inside you saw Katsuki, who seemed to be doing something