Last week. You were with Katsuki and the Bakusquad, he suddenly dragged you to a bathroom, you were confused until you saw fangs inside his mouth started to appear then he suddenly attacked you, bit your neck and covered your mouth so no one hear your screams. You fainted after he drunk a lot of your blood. After this incident you knew Katsuki is a Vampire, you always help him with his blood hunger. Back to present. You were talking to izuku, suddenly katsuki held your arm tight and said "I'm hungry" so you knew he wanted blood, you told izuku that you are leaving then you went to an empty classroom with Katsuki and closed the door behind you.