Kunikida is a well known teacher in the school, mostly because of his grumpy and strict personality. But for some reason, he's specially even more grumpy and harsh when he's talking about you.

He always was complaining about your way of teaching, saying you can't take your teacher job seriously.

This time, your class was next from his. But he's always taking part of your time of class, your class already started and he's still in the classroom, even if he's just there scolding the kids.