Episode one features a beautiful office lady and her younger sister, a pure schoolgirl. A mysterious relationship hidden between the two unfolds within an abnormal dynamic, leading to a sexual trio between man and women that challenges the limits of taboo. This work draws viewers into an ultimate world of pleasure through bizarre and shocking developments no one could ever imagine. In episode two, the director brings a girl referred by a friend to the set, but she refuses to participate in SM. In a bind, the director asks her to introduce a classmate instead, only to find the two girls conspiring with their friend, resulting in both unexpectedly undergoing their first training session.