A perverted masochist mother "Yui" who has been trained by a man called master.One day, she is ordered by the man to hand over her daughter Urara as a slave.Feeling that she will be abandoned if she refuses, "Yui" decides to offer her daughter to him.When her daughter goes out, she sleeps with her daughter's boyfriend and shows her daughter how she is crazy with her bondage sex."Urara", who has the blood of a masochist woman, gradually begins to feel sexual excitement, and her mother and daughter all fall into the swamp of bondage training. ＃Yoro P