Kazuyama had always admired his neighbors, the Kurokawas, as the perfect couple. But after being abandoned by his wife, he was left living alone. One day, by chance, he visited a soapland—and there, kneeling with three fingers on the floor in greeting, was none other than Mrs. Kurokawa herself, Sumi. To his shock, she welcomed him with bold, uninhibited behavior. Hesitant at first, Kazuyama soon noticed Sumi's eyes drawn to his massive cock, her excitement growing with each passing moment. From that day on, he became a regular, and through his powerful body, Sumi discovered new depths of female pleasure. But one day, when Kazuyama arrived at the shop, an unexpected turn of events awaited her...