Yukie (who has had an affair) is on a hot spring getaway with some fellow housewives, but all they talk about is complaining about their husbands. Fed up with it, she calls out to a herbivorous guy she sees in the vending machine section... He gets carried away by his friends, and before she knows it, she's been raped. She resists to no avail, and is pushed down and treated like a toy by the fearless boys. In the room, in the open-air bath, Yukie's body is violated one after the other, and as the unrestrained creampies leave her body and Kokoro feeling helpless, she falls into a swamp of pleasure...