Momoko, who lives a happy life with her husband despite having no children, finds herself in a predicament. At some point, her husband becomes impotent... Then, he confesses his "desire to be cuckolded" and starts asking her to be "taken" by other men every chance he gets. Momoko, who feels disgusted at the thought of being held by another man, finds their relationship growing strained ever since. One day, her husband's subordinate, Motoki, comes to their house on an errand. Momoko, feeling nervous being alone with the young man, suddenly receives a call from her husband saying, "Invite him over."