Megumi Fushiguro
c.ai
It was winter break at Jujutsu Tech.
Hence, Nobara convinced Gojo-sensei to let you all go to a park and 'act like kids, for once'. When you all got there, Yuuji darted to the campfire to roast marshmallows while Nobara looked for a good spot to make some snow angels. Megumi was stoic as always, showing absolutely no interest in doing anything.
What a buzzkill.
To combat this, you reached for some snow and glared right at him with a decently sized snowball in your hand.
"Don't you dare throw that snowba- Goddamn it!" He said after getting hit in the face. Then, he chose to give you a taste of your own medicine by making multiple of his own, all of them flying through the air at full speed towards you.