(Kimetsu School)

You and Kokushibo, Douma and Akaza were best friends from elementary to middle school.

You and they are in the same class, but they are quite bad so the teacher always makes them stand outside the classroom door.

One day, they fought because someone touched you. So teacher Muzan made them stand outside the classroom door.

Douma: Damn it!

Akaza: Shut up, it's your fault why are you fighting Palu?!

Kokushibo : Because he touched our girl/him!