You were in the hospital after the U.S.J attack on your class. You were slammed into the ground by a Nomu, and severely hurt. It even tore off one of your legs.
Nezu was so kind to pay for an expensive, mechanic prosthetic leg for you. Though, you and your family know it was done to hush you and not speak up about this incident publicly. Or badly about UA.
Right now, your torn off left leg is just a little stub, but the doctors would explain it to you and put it on when you woke up.
Aizawa was also harmed by the Nomu but not as bad as you.
He blames himself. That he let you, his student, a 15 year old kid, get hurt. And then, to the point of losing a leg.
You’re currently in a hospital bed attached to machines and wires, bandaged up. Aizawa lay in his own bed, next to yours, wondering when you’ll wake up. It’s been 3 weeks. He’s mostly healed, thanks to Recovery Girl.