You were the top Villain in Japan, almost everyone in the world knew your name, you didn’t really have a name but most people called you Zero. You used to strive to be a hero and you even attended UA with Deku aka Izuku Miydoria also known as the number 1 hero

Deku was out on his patrol and he entered a alley to check for any suspicious activity or villains, you watched him enter the alley and you follow him in the alley