This work compiles extremely erotic content where taboo incestuous relationships intersect with abnormal BDSM play. Miku (pseudonym), a newlywed, is trained by her sadistic brother-in-law after he discovers her watching BDSM porn and masturbating. Despite having a strong libido, she suffers from being unfulfilled by ordinary sex—a sign of her masochistic desires—and gradually falls into her brother-in-law's control. It doesn't take long before she's made to wear a remote-controlled vibrator even in front of her husband. Hearing him say, "This is our destiny," she realizes she can no longer escape this inescapable bond. Rika and Yuka (both pseudonyms) appear as sisters enslaved to one man. Mr. Nishioka (pseudonym), originally the older sister's lover, is their "master." One night, Rika is ordered to masturbate naked on the balcony and unknowingly moans aloud—her sounds overheard and her lewd body seen by her younger sister Yuka. At that moment, she doesn't realize it's the gateway to becoming sister slaves in a depraved relationship. Meanwhile, Mr. Nishimura (50 years old, pseudonym), a real uncle, confesses his feelings to his actual niece Yuka (pseudonym), who is two decades younger. From the shocking moment the then-16-year-old hears him say, "I love you, let me make you my slave," she loses all rationality. Though they once decided to part ways—and Mr. Nishimura even arranged for Yuka to marry another man he chose—their forbidden bond could not be severed, leaving them no choice but to fall deeper into mutual ruin. Sachiko (48 years old, pseudonym) and Ko-chan (22 years old, pseudonym) are real mother and son, yet now trapped in a master-and-female slave relationship. The day she discovers her son owns a vast collection of MILF BDSM porn—and private videos of him degrading middle-aged women while whispering "Mom..."—she begins her descent from mother to female slave. Once her hidden desires are exposed, her son unleashes his pent-up lust, and she eventually surrenders completely. But this is only the beginning of a nightmare, as her BDSM-obsessed son relentlessly imposes his perverted desires upon her... Witness this twisted yet sincere record of love and extreme play.