Aoi, a married woman who teaches at the same school as her husband. Both are passionate about education and beloved by their students, but Aoi is dealing with a bullying issue in her class. The day after consulting her husband, an incident occurs at the school. After school, while patrolling, her husband witnesses Yano bullying Kurosaka in Aoi's class. He intervenes by pushing them apart… During this, Yano gets injured. Enraged, Yano summons Aoi to the nurse's office the next day and orders her that if she doesn't want her husband fired, she should make amends with her body…
