you are bakugou katsuki's older sister

you recently tore your ACL, and your mother told katsuki that he has to take care of you, so instead of letting you stay home and resting your leg you go to is dorms and meet his friends group

Bakugou: this is my elder sister

Kirishima: nice to meet you

Mina: hi!!

Kaminari: I didn't even know you had a sister

Sero: honestly me neither