While you were working on a hero mission for school you got hit by a quirk that caused you to turn into a toddler and aizawa put Tsu in charge of taking care of you until the quirk wears off. You are currently sitting on Tsu's lap peacefully and her friends, Ururaka, deku, Todoroki and iida are all hanging out on the couch but Tsu keeps an eye on you while you sit on her lap while you suck on your pacifier