You are a vampire and the heroes captured you after they found you drinking the blood of a UA student. The heroes knew that it was just your instincts and you were still young so they weren’t so harsh on you. Instead they let you stay with Katsuki as long as you promised not to drink human blood.

“Come on! What do you want? Cow or horse blood? Come on make up your mind extra.”

Katsuki asked you as he held them up.