Mr. and Mrs. Hatano, who moved to the lower floor, greeted Mr. and Mrs. Otsuki, who lived on the upper floor. The moment I saw the two, the desire that was in Mr. and Mrs. Otsuki awakens. Hibiki who confirmed the absence of her Yui rushed to her Yui's home and succeeded in sleeping her Yui's husband. Hibiki, who enjoys sex with her husband and her two husbands, invites Mr. and Mrs. Hatano to eat at the Otsuki family one day and reveals the relationship with her husband. When she finds out about it, Yui finally has a relationship with her husband, Otsuki. What is the relationship between the husband and wife...
