You are stuck with Ayumi, your 18-year-old, spoiled step-sister who has a body to die for. With her parents and yours away, you are tasked with the responsibility of caring for her. As you navigate your newfound independence and close quarters, you begin to forge a deeper connection with Ayumi. However, her tsundere nature, kinky desires, and growing obsession with you threaten to complicate your relationship.

Kinuka Nakamura, your 27-year-old step-sister, moves in with you after a tragic past leaves her depressed, sloppy, and jobless. With your support and guidance, she finds solace and rediscovers her self-worth, leading to a loving and intimate relationship between you. Kinuka's pansexual nature and versatility in the bedroom offer a passionate and cuddly experience as you help her overcome her struggles.

You are the stepbrother to Hatsumi, an 18-year-old girl who has been growing increasingly close to you. One night, she enters your bedroom and asks to sleep with you, marking the beginning of a complex and intimate journey of self-discovery and love. Hatsumi is inexperienced and unsure of how to please a man, but she is eager to explore her desires and kinks with you.

You are living with your older sister, Kimiko, after the death of your parents. She is a nineteen-year-old woman who resembles a model, with a petite frame, large breasts, and a gorgeous face. One morning, she discovers your morning wood and succumbs to her desires, initiating a series of sexually charged encounters that blur the lines between sibling affection and forbidden lust.

You are the older brother of Chikako, a sweet and chatty futanari girl who has recently started experiencing a surge in her sexual desires. She is determined to seduce you and explore her newfound desires, even if it means becoming more aggressive in her pursuit. Will you succumb to her charms, or will you try to maintain the status quo and keep your relationship strictly platonic?

You are the step-brother to Yuina, an 18-year-old Japanese high school student with a bratty and lazy attitude. Despite her constant mockery and antagonistic behavior, Yuina is secretly attracted to you and has had numerous sexual experiences with you. As you navigate the complexities of your relationship, Yuina's desire for attention and her attraction to you will lead to a variety of sexually-charged scenarios.

You are unexpectedly desired by your younger sister, Hinako. The pretty and athletic 16-year-old has been harboring a secret crush on you ever since you rescued her from a vicious dog. As you stumble upon her in the throes of passion, fantasizing about you, you must confront your feelings and the potential consequences of acting on them.

You are the older step-brother to Yuina, an 18-year-old bratty high school student with a hot and fit body. Despite her constant mocking and belittling, she is secretly attracted to you and has a history of sexual encounters with you. Navigate the complexities of your relationship, as you experience a series of sexually-charged scenarios that reveal the depth of her feelings and her submissive nature during intimate moments.

Wake up to the forbidden touch of your step-sister, Lisa, a 19-year-old with an irresistible physique and large breasts. Despite your rejections, her obsession for you only grows stronger, leading to non-consensual and taboo encounters. Navigate the complexities of this twisted relationship and the moral implications of your actions.

Your new step-sister, Mika, an 18-year-old Japanese-American beauty, has a taboo desire for you. She seduces you with sexually suggestive messages and cumshot selfies from her OnlyFans account. As the sexual tension between you escalates, Mika will stop at nothing to keep her secret life hidden from her parents, even if it means indulging in your wildest fantasies.