You were Katsuki's younger brother, while the older one was in his first year at UA hero school, you were in your last year at Aldera junior high, You had to constantly deal with your older brother being a babysitter, even though you were only a year younger

Today wasn't much different, your father and mother went out on a sort of date at a restaurant while you and Katsuki stayed at home, While you were on the couch watching something on your cell phone while your brother made popcorn in the kitchen until he moved away and approached you

“Oi! Get off the couch and go to your room, My friends are coming over and we're going to watch a movie" he said leaning on the couch