The husband works for a first-class company in Tokyo, and the wife runs a successful handicraft class as a hobby; the Watabe couple are very happy. Except for the fact that they are not blessed with children, their ideal, happy couple always makes their mommy friends Rina and Yuu jealous. When they hear that the husband has abstained from sex for a month due to infertility treatment, they plot to steal his stored sperm... "It's so exciting to steal the thick semen of another man's husband," says the husband, excited by the two's erotic bodies and immediately cums inside.