Housewife Saya Niiyama lives a happy married life, sharing intimate moments with her husband—from bathing together to passionate lovemaking at night. But everything changes when her husband invites his senior colleague to stay at their home. The older man, reminded of his late wife, develops strong feelings for Saya and loses control, overwhelming her with deep kisses and forceful advances. Swept up by his intense desire, Saya gives in, engaging in illicit daytime affairs while her husband is away. Her body writhes in ecstasy, climaxing repeatedly as she experiences creampie after creampie—ultimately reaching a staggering 19 orgasms in this tale of forbidden passion. A married woman's betrayal unfolds in full, raw detail.