Three years into their marriage, the Oishi couple are ready to have a child but have had no luck conceiving. When a flyer for a fertility massage salon turns up at home, Kaori decides to give it a try. The therapist's meticulous massage stimulates her deep inside until pleasure overwhelms her entire body and she gives in to a rock-hard cock. Addicted to the salon's increasingly obscene treatments, Kaori keeps coming back for more.