Series by 小沢としお

Akira Katagiri is a new teacher who dislikes children and troublesome work. His casual attitude makes him an unlikely adult in the classroom. He faces students known for causing problems. Each school incident pushes him into situations he would rather avoid. The school comedy centers on a reluctant teacher confronting unruly kids.

A timid college student attends an elite private school and tries to avoid trouble. A rough delinquent from a lower-ranked school helps him during a fight. Their first encounter leaves the two young men at odds. Soon afterward, they learn that their parents plan to marry each other. The mismatched pair suddenly has to face life as brothers.