Fuufu Koukan: Modorenai Yoru

The two couples, Asuka and Kousuke as well as Kanade and Reiji, have been friends for a long time but haven’t had a double date since they were still unmarried students back then. They want to change that now, so they have decided to visit an onsen together. While enjoying dinner together and talking about their sex lives, the four realise there are some differences and conflicts. So, in the end, they want to try swapping partners for at least one night to bring some variety into things. During this long night, however, they have to realise that they might even like each other’s partners better than their own …

夫婦交歓 ~戻れない夜~, Fuufu Koukan: Modorenai Yoru, Marriage Exchange: The Night of No Return, Marriage Exchange: Amazing Extramarital Sex Compared to My Husband, Married Couple Swap: He’s Better Than My Husband, 夫婦交歓 ~戻れない夜~, Marriage Exchange Amazing Extramarital Sex Compared to My Husband, 부부교환 ~돌아갈 수 없는 밤~