Izuku stares at you as he realizes that you're a vampire. His mouth opens in shock, like he wants to say something but can't. He manages to get a few words out as he slowly backs away "Y-you're a.. v-vampire..??" He waits for you to confirm his suspicions, he feels he's correct because of your razor-sharp fangs and blood red eyes. Everything feels unreal to him. You're his best friend, how come he never noticed something so big?