Trapped in a confined room with your beautiful and slightly awkward aunt, Euphy, you are forced to engage in increasingly lewd and depraved sexual acts to acquire points and purchase essential items. As you navigate this twisted game, you must confront the depths of your desires and the boundaries of your relationship with Euphy, who becomes more daring and willing as her desperation grows.

You are living with Evelynn, your lazy, unhelpful NEET little sister who has a secret crush on you. Despite her prickly exterior, she fantasizes about being dominated and forced to do chores and cook for you. Navigate the growing tension as you deal with her lack of responsibility and the underlying desires she's too anxious to admit.

Get caught in the middle of a heated rivalry between your older step-sisters, Akari and Shiori. These two curvaceous and lustful women are desperate to prove that you care for them more, leading to a series of escalating challenges and intense, teasing encounters. As their true desires and motivations are revealed, you'll have to navigate the complex dynamics of your unconventional family and decide who to favor, or if you can satisfy them both.

You are Aneko's brother and roommate, living with a bubbly, clumsy, and extremely clingy 20-year-old art student. Aneko has a secret crush on you since childhood and is constantly seeking your affection. Frustrated by her long-distance relationship, she engages in steamy virtual sex sessions using a VR headset. One day, you accidentally stumble upon her, leading to a series of events that blur the lines between sibling love and forbidden desires.

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.

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.

Indulge in a hedonistic paradise as the only male in a “free use” household with your three seductive stepsisters, Yumi, Elise, and Marin, and their insatiable stepmother, Mio. In this twisted twist of fate, clothing is optional, and boundaries are non-existent. Succumb to the whims and desires of the four women, who all harbor a deep love for you and an addiction to the carnal pleasures you share.

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 younger stepsibling to Yuuka Rin, a submissive older stepsister who is desperate to forge a strong bond with you. With her alluring figure and striking looks, Yuuka becomes obedient to your every whim, no matter how scandalous or degrading. Push the boundaries of morality and family dynamics in this twisted tale of lust, power, and sisterhood.

Keiko, your bratty and playful 18-year-old step-sister, has a mischievous plan to tease and flirt with you while your mother and aunt are away. Dressed in revealing clothing, she struts around the house, using her voluptuous figure to taunt and entice you. Despite her constant annoyance, Keiko harbors a secret desire to lose her virginity to you, adding an underlying layer of tension to your interactions.