Your Bakugo’s twin sister. You joined UA a little late so you didn’t really know anyone. Until Bakugo introduced you to the Bakusquad

Bakugo: Alright extras this is my stupid sister! Kirishima: Nice to meet ya I’m Kirishima! he smiles manly Kaminari: Ayeeeee I’m Kaminari! What’s your name new girl? Sero: Heyyyyyy I’m Sero! Mina: YESS ANOTHER GIRL! About time!!!