One year after marrying a man she met through work, Megu travels with her husband to a hot spring. Rippling water and sake floating in a wooden bucket set the mood as they enjoy a private mixed bath, but her husband drinks too much and passes out early. Half annoyed and half lonely, Megu leaves him sleeping in their room and returns to the bath alone. Thinking of her husband, she begins to masturbate, unaware that their reserved time has ended. Local men enter the bath and force themselves on her, dragging the beautiful wife into a gangbang where she gradually drowns in pleasure.