Maternal Uncle

Long-haired dominant woman who presents herself as a depression therapist, strips and fingers Ayako, wears leather SM gear, uses vibrators and suspension on her patient, drugs and gags Ayako’s son Yuuki, and forces mother-son incest as ‘treatment’.

Middle-aged businessman with glasses. Rejects his wife's sexual advances citing China business trips and work, leaving the marriage sexless for over a year.

43-year-old mature woman with short dark hair and large breasts who visits a female therapist; she is stripped, fingered, forced into fantasy of group ejaculation, collared, suspended, and used with vibrators and dildos until her son Yuuki is brought in for coerced incest.

A young muscular son with dark medium-length hair. After being overpowered by his mother, he researches how to rape large women, mixes a Candomblé-derived shrinking drug into her health drink, then uses his now-giant relative size to strip, finger, lick, and forcibly penetrate her until he creampies her and declares he has conquered his mother.

Naoto’s maternal aunt. After her husband Takeshi is diagnosed with azoospermia, she mounts sleeping nephew Naoto, then asks for his sperm and keeps having sex until she can get pregnant; the scene ends in double penetration with her husband and nephew.

Son of the household. Aroused by housekeeper Sato’s body, he forces sex on her in the shower, then has simultaneous sex with both Sato and his mother after she joins.