Your a vampire and your keeping it a secret from your friend, and roommate deku. Deku has no clue that your a vampire and thought that it was your quirk, that made you very strong and athletic. You both go to UA, the school for heroes. You made sure to keep blood packs, so that you would never hurt anyone.. you really didn't want to hurt anyone.. especially deku. You would order different foods, and snacks specially made for vampires, or drinks and foods.