Rika, a wife who dreams of a happy future after purchasing her long-cherished home and only having children. However, her husband has weak libido and often becomes incapacitated. Knowing this, her father-in-law, Kiyoshi, deceives her by telling her that there is a perfect stretch for her sex life, and blocks her movements in order to let out her excess libido with her daughter-in-law. It was already too late, and he was helplessly violated by Kiyoshi's sticky caress. Rika is shocked when her father-in-law takes control of her.
