A married couple who have been together for several years but haven't had sex in a while. One day, their masseuse friend comes over to visit. During conversation, they reveal their sexual frustration and the friend suggests a threesome involving NTR (Netorare). After some back and forth, the husband agrees enthusiastically. He then calls his wife over to explain the situation. Intrigued by the idea, she decides to go along with it. They both visit the salon again another day where things escalate further... What happens next?