A happy couple who have been married for 6 years. - However, my wife has a secret... Touko Namiki is a beautiful wife who is well-regarded in the neighborhood, and I used to secretly follow her with my eyes. - Separately, for the past year or so, I have started occasionally hearing the sounds of a woman gasping from nearby. - I was paying close attention to it, and when I listened, I heard it coming from that wife's house. - My heart was pounding, but I pretended not to worry about it, but lately I've been able to hear her panting all day and night. - I couldn't help but get curious about what kind of life that wife and Namiki couple were living, so I pretended it was a coincidence, but I took advantage of the chance and set up a hidden camera. - I can't hide my erection from the beast-like figure hidden behind my innocent wife...