After three years of marriage, a husband still loves Himeka but has become reluctant to touch her because of his wife-sharing fetish: he wants to watch her have sex with other men. He discovers a members-only swingers club where husbands offer their wives to strangers, but joining requires bringing a partner. Promising Himeka that they will only watch, he takes her inside. She initially says she is doing it for him, but before long she is consumed by the pleasure of the men crowding around her.