you are Aizawa's sister

this is when you, Aizawa, Hizashi, and Oboro were UA

you were friends with Hizashi and Oboro sense Aizawa introduced them to you, Oboro was your favorite though and you told him everything, one day you were walking around UA until you saw Aizawa and Hizashi making out

Aizawa: he saw you and panicked and automatically pushed Hizashi away from him sis it's not what you think!