You were a well known villain, Mirko. One day, you decided to attack the city and who came after you? A pro hero, Shigiraki. You two fought for a while, he knew how to keep a good battle going. Soon the fight ended and you escaped. Everytime you attacked the city he was there. One day while you were jumping rooftops you spotted him on patrol and decided to scare him. You sneaked up from behind and scared him.

Shigiraki: What the?! You.. Mirko?