Mari, a female teacher, notices that bullying is happening in the class she is in charge of. She tries to get the truth out of the victim student who was being bullied, but he is completely closed off and won't say anything. Mari has made up her mind and calls Kato, the leader of the students she was bullying, to her home in an attempt to persuade him to change his mind. Mari, who is serious and has a strong sense of justice, desperately tries to persuade him, but Kato doesn't listen to Mari at all...
