One day, two compatible women visit a hot spring inn located in a tourist destination. After tiring themselves out during the day, they fall into a deep sleep in their room. Quietly approaching, a group of men sneaks into their room. Seeing the two women lying naked and unconscious, the men decide to have their way with them and enjoy themselves thoroughly tonight. Though startled by the unexpected intrusion, the women must find a way to endure the situation. An unforeseen night at the inn begins.