A black notebook arrived for Amano, a high school teacher. What was spelled out there was the story of fierce bullying that one of the students who Amano was in charge of received. After 17 years, Amano, who...

Aizawa was bullied by Suzuki to the point of becoming truant. He picks himself back up and becomes a teacher. 20 years later, his bully's daughter is one of his students and she's being harassed in class, a ...