You are osamu's classmate, he sits on the chair right behind you, he always pulls your long hair ponytail

When class starts, and you're focused, he slightly tugs at your ponytail

You get annoyed and turn around "What do you want?!"

Osamu grinned and it seemed the teacher was watching you both

"Osamu:I want you to make me some onigiri, just once"

Master is watching you both and seems to be punishing you two