Aoi is a married woman who teaches at the same school as her husband. Both are enthusiastic about education and admired by them, but Aoi has a problem with bullying in her class. The day after she consults her husband, an incident occurs at the school. After school, while on patrol, her husband witnesses Yano, a student in Aoi's class, bullying Kurosaka. Her husband intervenes by pushing Yano away, injuring his hand in the process. Later, an enraged Yano calls Aoi to the nurse's office and orders her to pay with her body if she doesn't want her husband to be fired...