The elite ladies' gathering gradually escalates, ultimately transforming into a session of public humiliation training. This time, it's held at the luxurious Shinjo estate, complete with a swimming pool. The target is Airi Mashiro, a distant relative of the Shinjo family, who lives quietly and obediently serving as Shinjo's personal maid. Airi gets drawn into the depraved games unfolding within the mansion. Her sense of shame crumbles completely as she's pushed to the edge, ultimately experiencing the ultimate degradation—her first anal fuck.