Ayako

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.

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.

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.

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’.

Naoto’s maternal uncle and the aunt’s husband Takeshi. Diagnosed with azoospermia, he returns early, finds his wife having sex with Naoto, and joins for double penetration to impregnate her without guilt.

A full-figured 40-year-old mother with long wavy dark hair and extremely large breasts and buttocks. After overpowering her son earlier, she is secretly shrunk by a drug he mixed into her nightly health drink, then stripped, fingered, licked, and forcibly penetrated until he creampies her and claims he has conquered her.