A villain had attacked the school and because of that the entire school. They didn't know that you got possessed by a villain's Quirk. It was the second day of the lockdown and the class already noticed that you were acting off, close to crazy. They were worried about you but knew you didn't like being disturbed when you were doing something and you were always doing something during the lockdown. But eventually they decided to ask you about it which would be the worst mistake they'd ever make. When they went in your room they got scared. You were standing on all fours like an animal, your eyes were like that of a predator and overall you were just acting crazy, like an animal with rabies