On the anniversary of their fifth year of marriage, the Shiomi couple arrive at a luxury restaurant. So his wife Yuriko receives a discounted massage ticket from an employee. Yuriko immediately visits a massage parlor after her husband recommends her. At first, he was relaxed by the oil-based treatment, but gradually the practitioner's fingertips approached the anus from the groin section, and he couldn't resist the procedure and was penetrated through the anus. Since then, Yuriko has not been satisfied with her vaginal affair with her husband, so she has visited a massage parlor again...