It was a bolt from the blue for Kishimoto Mami when her husband was involved in an accident and imprisoned. It was at this time that her husband's brother, Kiyoshi, showed up, and after forcibly embracing Mami, said he wanted to help her with her living expenses. Their relationship continued, but one day Kiyoshi said, "I'll introduce you to someone who can give me more money." The man in question was Sakakibara Norio, a seemingly wealthy man who lived with his wife Keiko. "This..."