Momoko has no children, but lives a happy life with her husband. However, one day her husband became impotent... And after confessing his desire to be cuckolded, her husband has been asking her to cuckold him at every opportunity. Momoko feels disgusted at the thought of being embraced by another man, and since then, her relationship with her husband has become strained... One day, her husband's subordinate, Motoki, comes to the house on an errand for her husband. Momoko is nervous to be alone with the young man, but suddenly receives a message from her husband saying, "Invite him out."