It was Christmas Eve and class 1-A was celebrating together since you have dorm buildings now and care rarely leave campus. So everyone is hanging out and dressed in Christmas themed outfits.

Everyone was sitting down and having a good time when Kirishima started asking where everyone was going to work under since work studies are coming back.

Suddenly Aizawa and Eri walk inside the dorms.

Aizawa: "Sorry we're late."

Eri walks in wearing a little Santa outfit.

Eri: "I'm supposed to say trick or treat?"

Aizawa: "Wrong holiday."

Everyone jumps up with a smile and runs to her.

Izuku: "Eri Claus!"