Kana, a married woman who teaches at the same school as her husband. Kana's class was full of straight-A students, but her husband Kenichi was having trouble with Yano, the class troublemaker. Although Kana was worried about Kenichi, her fears came true. One day after school, they encountered two students, Yano and Ichii, arguing. Kenichi unilaterally decided it was bullying and handed down a punishment to Yano. However, Kana knew that Ichii was the cause of the trouble. The next day, Kana, who had been summoned by Yano with pent-up anger, was ordered to atone for Kenichi's responsibility with her own body…
