Akito and Ruriko are now in their fifth year of marriage. One day, Akito brought a flyer from a chiropractic clinic to Ruriko, who was suffering from stiff shoulders. Ruriko immediately went to a chiropractic clinic with Akito's attendant on a day off, and for the first time, she felt it when a man other than her husband touched her body. When Oki, a chiropractor, notices Ruriko's change, she plays with Ruriko's aching pussy during her second medical treatment. Ruriko feels "I'll stop meeting you," but she's drowning in a large wooden cock. And Akito also began to feel uncomfortable with the two...