I live alone, and there's one thing that bothers me: Mako, who lives across the street... Every night, she and her husband have sex, but I can see them from my room. Unable to suppress my Kokoro and ulterior motives, I peek... But one day, I give in to my desire and peek out the window, and my eyes meet with Mako's! When Mako notices that I'm peeking, she starts bringing me into her house and milking me to vent my desires while her husband is away on a business trip...