The Kurokawas, who lived in the neighborhood, were the ideal couple in Kayama's eyes. Meanwhile, Kayama lived alone after his wife ran away from him. However, at a soapland he happened to visit, the woman who greeted him with a traditional three-finger bow was none other than Sumire, Mrs. Kurokawa. While she was bewildered, an excited Kayama told her, "I'll keep it a secret!!" and made her suck his cock... From that day on, Kayama became a regular. Despite her confusion, Sumire spent her days being taught the pleasures of womanhood by Kayama's huge dick. But one day, when Kayama visited the shop...