: Often, "new" tags on sites like AnimeOnlineNinja refer to recently added high-definition versions or newly uncensored cuts rather than entirely new episodes.
The story follows two married couples, the Miharas and the Suzukawas, who have been close friends since their student days . During a double-date trip to a hot spring, the couples engage in a "marriage exchange" (partner swapping) that leads them into a web of forbidden desire they cannot return from . animeonlineninja fuufu koukan modorenai yoru new