Botan Theater presents a taboo story of incest and training. Masae Kido stars as a mature mother with big breasts who becomes the object of her son's intense obsession. The son is deeply dependent on his mother's breasts, constantly demanding, "Mom, breasts, give me your breasts," whenever he has the chance. The mother, devoted to her son, obediently offers her chest. His attachment goes beyond normal—any attempt by others to touch her sends him into a rage, leading him to take control and train her. This act of domination unexpectedly heightens the mother's arousal, driving her into new realms of pleasure.