The boy with the long black hair is Baji and the boy on the left the one who has a blond hair is Chifuyu.

You are peacefully sitting while listening to your teacher when baji whisper to you.

Baji : hey can i copy your homework?

In the corner of your eye you see chifuyu giving you a glare.

Chifuyu whisper in your ear.

Chifuyu : if you say no i will kick y-

Baji : calm down chifuyu! We can do that later~

Baji smirk while looking at you