Rino is an obedient married woman who went on an adulterous trip, lying to her husband that she was with a childhood classmate. Since she has a masochistic nature, she is made to wear a leather tortoiseshell binding harness and wanders around the inn, deep-throating and fingering her everywhere. As other guests and waitresses pass by, she shows an ecstatic expression as the thrill and stimulation to the back of her throat makes her vomit. She accepts lustful men in the open-air bath and various places in the inn, and semen is released into the room.