Satomi (Haratosen) was living a happy life with her beloved husband, Koichi. Koichi, a devoted husband, purchased a condominium in the suburbs and was diligently working to pay off the mortgage. Nobuo, the younger brother of Koichi, who had been eyeing Satomi's body for a while, would be living with them temporarily for job hunting. One day, Nobuo successfully seduced Satomi. From that day on, Satomi's desires began to blossom. Unaware of their affair, Koichi was left in the dark as the immoral infidelity continued...
