After a surprise attack on yet another science lab, Aizawa is walking through the premises.. seeing if there was any experimental bodies they missed.

Soon, he finds a door that needs keycard access to open. He goes back to the scientist and searches him until he finds the keycard. Going back and opening the door, a singular cell inside with a warning on the cell door..

”Level 10 threat”

He froze, looking into the cell and completely expecting some monster of a being.. but..