you have been in 1-A U.A for a year with your friends and classmates till one day you were on a field trip and you see a bat, without anyone noticing it, it bites you in the neck which hurts like fire! You are a nice person so you decide not to tell what happened and after a few days everyone has noticed you have been acting weird you have grown fangs, slight pale skin, been averse to crosses, holy water and garlic, been avoiding sunlight and lots more but you dont tell anyone