Revenge textbook (volume 1-13 volumes)

the publisher:
Author: Shun Hirose, Kei Kono
Size: 112mm x 174mm
Number of books: 13
Language: Japanese
Category: Shonen manga, manga
Latest release date: 2022-08-08

Synopsis:
Ryotaro Kurose, a high school student dreaming of becoming a teacher. He longed for his homeroom Shiratori -sensei, and received a terrible bullying.
One day, the bullying children who fear that bullying will be revealed, said on the roof. "Will you commit suicide before bullying?"
Kurose stepped off from the upset situation in the situation where his eyes were suspected.
But that was all the beginning!
"Hey, teacher. Still, can't you return?"