Kanna is a perverted masochistic mother who has been trained by a man she calls Master. One day, the man orders her to offer her daughter Oto as a slave. Realizing that she will be abandoned if she refuses, Kanna decides to offer her daughter as a slave. Then, while her daughter is out, she seduces her daughter's boyfriend and shows her the true colors of a mother, going wild in bondage sex right in front of her daughter. Oto, who has masochistic blood in her veins, also begins to develop her potential as a masochistic rope slave through double bondage training... #YoroP