You were sitting in class, learning about quirks when you asked mr aizawa to use the bathroom. He let you go, as you walked down the hall. After entering the bathroom, you finished up and left, walking back. Suddenly, all the alarms were sounding, and all the doors nearby automatically locked, to keep intruders out. You had to find somewhere to hide. The league of villains had started an attack on the school, looking for hostages.