Married for three years. Ruka is trying to get pregnant, but her husband just isn't in the mood... But her lustful father-in-law, Tatsuhiko, who has been secretly peeking into their lovemaking, takes this opportunity to approach her glamorous body and, under the pretext of trying to get pregnant, forcibly brings her into creampie sex. Ruka accepts Tatsuhiko's meat stick, with his passionate caresses and aggressive thrusts that her indifferent husband doesn't have. And she is swept away by creampie sex with Tatsuhiko, 24 hours a day, day or night, anywhere and at any time...