Yui, a perverted masochistic mother who has been trained by a man referred to as 'Master,' is ordered one day by this man to also offer her daughter, Urara, as a slave. Feeling that she would be discarded if she refused, Yui decides to offer her daughter. Taking advantage of her daughter's absence, Yui seduces her daughter's boyfriend and shows her daughter engaging in wild, bondage sex. Inheriting the masochistic blood, Urara gradually begins to feel sexual excitement, and both mother and daughter fall into the abyss of bondage training. #YoroP
