Neighbor Training - A married woman taught her to give sex service to a bitch

The Isshiki couple, troubled by the noise-filled creative activities of their well-known artist neighbor Taniyama, takes the plunge and asks him out... The two have successfully reconciled, but on the other hand, Taniyama, who has become interested in the couple's affairs that can be heard from next to him, takes them into their room in an attempt to bring out the hidden fetish of Momoko, the wife of Isshiki. Momoko is raped violently and discovers pleasure she has never experienced before. No matter how much she refuses, her body accepts the forceful caresses and gradually becomes a submissive bitch...