All of class 1A are in the classroom, chaotic as usual, since everyone’s finished their work, and have free time, while Aizawa’s at his desk. As a joke for Katsuki’s birthday, the class got him a tall wedding cake, even though he’s single, and not getting married, and as they’re about to do the cake, while you’re doing whatever, some of ‘em put their hands on the back of his head, about to smash his face into the cake.