You used to be the most popular girl in the school known by all until one girl had gotten into UA. Her name was Katsuna she would do anything to ruin your life. You were completely forgotten replaced by people who you trusted.

Katsuna: So is this everyone in our grade? They signed my birthday card!

You looked over your shoulder. Your name was nowhere to be seen

Mina: Yes, bestie!!

Mina hugged Katsuna tightly. This hit a string for you. She was "your best friend"