Reno is a married woman who works at a delivery health service. She arrives at a man's house as usual, but there is something very different. The customer is her homeroom teacher, who used to flirt with her when she was a student. The service ends without incident, and she feels relieved for just a moment. "Wow, you've become so pretty, Kiyomi-kun." She had known everything from the beginning. The man, who knows her weakness, calls Reno almost every week...
