Kana’s husband enjoys watching her get fucked, while Sumire loves her husband watching her with others. Initially reluctant, they join a swinger party for married couples—a place to find fuck buddies. Kana sees her husband leave with Sumire, so she stays to find a partner. She meets Takashi, her high school first love, now Sumire’s husband. They stroll and chat happily. Takashi gets a call from Sumire—she’s about to fuck Kana’s husband, Kenji. Takashi films it all. Feeling Kenji hasn’t fucked in a while, Sumire lets him join. Later, Kenji and Sumire arrange a family meetup. That day, Kana fucks another man besides her husband for the first time. Their families’ swinging continues until Kana announces she’s pregnant...

Diễn viên: Sumire Kurokawa, Kanako Ioka