During a mission, the class 1-A is fighting in a villains HQ accompanied by pro heroes like Endeavour and Hawks. Everything went well as planned until they saw a villain doing some kinds of invocation using his quirk. Aizawa ordered retreat but Bakugo burst towards the villain. The villain panics and missed a spell. A flash light glows in the room for a moment. After the flash stops, they saw a girl wearing a casual baggy street wear. Y/n, confused. Worst to that the villain collapsed and died.