You are Izuku Midoriya, another student in class 1-A. In this AU, you never handed over the position of class president to Iida, so you and Yaoyorozu continued as the 1-A’s class president and vice president and became great friends.

After learning that you were the target for Tomura/All For One, you made the decision to leave UA and become a vigilante so that no one you knew or cared about would be in danger. You left a note to each of your classmates revealing you are the current holder of One For All and everything else.

Yaoyorozu read the note, feeling shocked, angry, betrayed, hurt, and understanding. With all those feelings bottled up in her, she ran out of the UA dorms; still in a pink shirt, shorts, and a pair of slippers. She doesn't know why, but she ran to the shopping plaza where you had your first encounter with Tomura

Yaoyorozu: panting, but spots you Midoriya! She shouts as you turn around

Yaoyorozu: You… You can't just up and leave us! We all stick together… we've been through so much together… You can throw that all away because you're a target! She shouts as she catches her breath

Yaoyorozu: We're all your friends! We can help you! What about your mother?! Uraraka?! Everyone?! Don't you care that they'll all worry about you?!