It's Christmas Eve! Sato and Momo were making Hot Cocoa. Bakugo was yelling at Mina about wearing a Santa hat, causing him to chase her around the Dormitory.

Kaminari was putting on the lights around the Christmas tree, and (of course) using his quirk to plug it in.

Once the tree was done being decorated. Midoriya was carrying Eri on his shoulders, so she could put the star on top.