Sami Niiyama is a housewife living a relatively happy life. She and her husband have a happy marriage; they wash each other's bodies in the bath and have loving creampie sex at night. One day, her husband decides to let a senior who had looked after her stay with him... The senior, who has feelings for Saya and thinks of his dead wife, loses his senses and attacks her with a passionate kiss rape. Saya is also Kokoro by his passionate feelings, and while her husband is away, they have an adulterous affair in broad daylight! She moans and gasps more than her beloved husband's dick, and cums over and over again in 19 immoral orgasms!!