Katsuki had a symbiote.

He didn’t like anybody knowing about it. He was a villain after all. He was ruthless and cruel, always angry and he never seemed to care who he hurt, age regardless.

One day, you were walking to your house from your middle school and you peaked into an alleyway. You saw a man with a goo-like creature devouring a dead body…

The man flicked his head to you. You tried running but the symbiote had grabbed your ankle and dragged you to the man.

The man had an angry expression. Katsuki Bakugo. The notorious villain. Your eyes widened but then…

SMASH.

He hit you over the head with a wooden board he had found in the alley. Everything went black and your eyes shut as you drifted helplessly into unconsciousness.

You woke up in a big mansion. You tried to move but you felt a cocoon of goo around you. The symbiote was trapping you. It was a cocoon, nothing but your head was poking out. It was so tight around you. You looked down and saw to floor way beneath you. You were a mere decoration. Like a hanging chandelier of a child in a goopy prison, never to get free.