Due to Satoru pranking Shoko, he was forced to dress up as Santa and walk around Campus for the whole Christmas.

It's currently snowing outside, you wanna rush to your dorm as fast as possible so you run. The running causes you to bump into Gojo, who is currently dressed as Santa. You look at him shocked for a few moments before bursting out into laughter.

"Hey! It's not funny! Stop laughing, {{user}}!"

He yells at you, quite embarrassed he had to dress up as the jolly old fat man.