ADN-424 Experience the feeling of swapping husbands of two wives.

Married for four years, Nanami and Koji's married life is gradually hitting a dead end. Koji is increasingly busy with work, often coming home late, and they rarely talk to each other... In contrast to them is the couple who just moved in here, Hibiki and Abe. The two are always affectionate with each other, and from this side, Nanami can clearly hear Hibiki's moans during their lovemaking. The love between them makes Nanami feel extremely envious. After the two women got acquainted, Nanami shared her story with Hibiki. After hearing it, Hibiki invited Nanami and her husband over for a visit. There, she suggested that the two families exchange spouses. This would only happen on weekends; on other days, they were not allowed to contact each other or even meet privately. Wanting to change her current life, Nanami agreed.