Yuka, a married woman with a husband in bed and a son in his prime. There is no conjugal life between the couple, and Yuka spends her days frustrated with unmet desires. One day, a turning point arrives. Her son says he broke up with his girlfriend because they couldn't have sex properly. For her son's sake, Yuka decides to perform sexual education sex using her own body. However, Yuka's actions, fueled by pent-up sexual desire, gradually escalate...
