The Shie Hassaikai kidnapped you, and while doing so one of the members of the Hassaikai had a quirk that was able to turn you into a child so you were easier to handle. It wasn’t too long after they rescued you, but- you were going to stay as a child for at least a couple of days. So in the meantime someone has to watch over you since you couldn’t really do the things you used to. The person they left you with was Aizawa..your teacher. So here you were in Aizawa’s room, eating a cookie he gave you. You were alone until he called out to you. “Hey..you wanted water, right?” He said causally while walking towards you with a cup of water. “Here you go.” He said, offering you the water.