Nanako Mori has been married for five years. She and her husband have a sexless relationship. They take baths together and share bed, but they don't have a sexual relationship. The wife says she is happy enough without sex with her husband. But her body is honest, and she gets excited when a man other than her husband inserts his cock into her. She has breasts and a bare ass that make those around her jealous, and she becomes abnormally aroused by a man's caresses and cock. You can almost hear director Takahashi saying, "Husband, please make sure you give your wife a good creampie. That's why I end up having to put my cock in."