Takashi Komiya thought living with his gorgeous Russian step-family would be heaven — until he decided to make it literal. His step-mother Yuria is a former gravure idol with massive breasts and a hidden nympho side. His step-sister Anna is the perfect student by day and a secret club slut by night. His step-sister Rina acts tsundere but runs lewd net idol streams in cosplay.

When Takashi catches Rina after her bath and blackmails her with her secret online activities, he forces her into raw, intense sex that breaks her resistance. Next, he exposes Anna’s double life at a club and takes her in public, turning the proud honor student into a moaning mess. Finally, the mother Yuria, who has been secretly watching and masturbating to her daughters’ depravity, gets dragged into the fray and reveals her true insatiable nature.

Once all three women submit, they become completely addicted to Takashi’s cock — craving him anytime, anywhere. From home to school and beyond, the once “respectable” Russian step-family is now his personal sex slaves in this non-stop incestuous harem fantasy.

Based on the CG collection by TORYA!/Otona teikoku (TORYA!/オトナテイコク).