This is an amateur video sent to an SM magazine. Names have been changed. The author reveals that they learned about anal pleasure during their high school days. They had relationships with men afterward, but were too shy to ask them to touch their buttocks. Their husband was also a normal and kind man, so they lived a life of hiding their true self. Then, they met a man named Kanemaru who lived on the same floor of their apartment building. The reason they got involved with him was a slight curiosity... They saw an anal vibrator peeking out of his garbage bag. "Are you interested in anal vibrators, Mrs.? Did you want to put it in your own butt hole?" It's a story like a manga, but I confessed everything because she was stabbed by his whispered interrogation that hit the mark. From that day on, I fell into being a masochistic slave in Kanemaru's apartment.