A self-employed couple, exhausted by life and work, with a failing sex life. They visit a psychosomatic clinic, but it turns out to be a horrific place where a corrupt doctor named Ozawa performs lewd brainwashing and sex training under the guise of treatment. Through his malicious diagnosis that digs into the gaps of her heart, the wife, Miki, gradually becomes a nympho... The couple has sex in front of Doctor Ozawa, and later at home. While the husband rejoices, thinking everything has improved, Miki cannot forget Doctor Ozawa's thick cock... "This isn't a consultation, but would you like to come to my house for dinner next week to celebrate your recovery?" Invited by Doctor Ozawa, the couple visits his home, where the husband discovers Miki's true feelings. "Miki-san, please choose. If you choose me, you will live as my sex slave for the rest of your life. Now, which will you choose?" "Doctor, please make me your sex slave." The two engage in intense slave sex right in front of the husband. Miki reaches the peak of pleasure with Doctor Ozawa's thick cock...
