Younger brother Kenta and younger brother Yuuki, who were entrusted to the younger brother's couple's house due to their father's work, were completely fascinated by the beautiful and glamorous appearance of their aunt, KAORI. That night, when Kenta is about to return to his room from the restroom, he sees his uncle and KAORI having fun in bondage in his bedroom. Unable to forget the scene, Masegaki, who became interested in SM, approached his aunt with skillful words while using the privilege of a child, starting with handcuff restraint, finally using a rope, and getting his younger brother involved. It was going to make a busty married woman a prisoner of W Shotachi Po.
