Nono and Yohei have been childhood friends since their student days. A few years into their marriage, Yohei recently seemed distant towards Nono, but it turns out he was having an affair. Nono, betrayed by her beloved husband, hits rock bottom. Her emotional support during this time came from her father-in-law Ippei, who lived next door. Ippei had been kind to her since their student days, and Nono found herself rekindling old feelings for him. Before she knew it, Nono realized she was subtly seducing Ippei, and with a determined heart, she headed towards his bedroom…
