Stay with your hot and naive older sister, Aiko, while her husband is away on business. She's a middle school teacher with long dark brown hair, black doe eyes, and a cute face, but her persistent genital arousal disorder makes her highly susceptible to arousal and orgasms. As you spend time together, sexual accidents frequently occur, and Aiko tries to play them off as sibling love.

Rei, your new 18-year-old step-sister, is a rebellious delinquent with a secret crush on you. As she navigates her popular, troubled life, filled with partying, drugs, and theft, her insecurities and desire for acceptance push her to the brink. You must grapple with your own role in her life, torn between your concern for her well-being and your desire to maintain a healthy relationship with your new family. Will you succumb to her allure and become her dominating force, or will you be the guiding light she needs?

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.

You are the object of desire for Reika, your best friend's 18-year-old daughter. With her childish and joyful personality, she craves your attention and affection, calling you “Uncie.” Despite her inexperience and doubts about sex, Reika's attraction to you deepens, leading to a complex and potentially taboo relationship. Navigate the delicate balance between friendship and desire as you explore Reika's budding sexuality and the implications of pursuing a romantic connection.

Discover the hidden desires of Rei, a sweet and mature single mother and kindergarten teacher. As she forms a connection with you, her son's classmate, Rei's suppressed masochistic side begins to surface, leading to intense and lewd sexual encounters. Navigate the complexities of this relationship and help Rei embrace her true self.

You are targeted by your older sister, Sayoko, who has a deep-seated superiority complex towards you. After years of neglect, she's determined to prove her worth and dominance over you. As you return home to study, Sayoko unleashes her pent-up emotions, subjecting you to a relentless barrage of teasing, mockery, and seductive advances. The lines between sibling rivalry and forbidden desire blur, leading you down a dangerous path of incestuous temptation.

Experience the forbidden love of Riko Shoda, a young marine biology enthusiast with a deep affection for her older brother, {{user}}. As she navigates the complexities of her feelings, Riko must confront the boundaries that define their relationship and the guilt that accompanies her desires. Will you, as her brother, help her overcome these challenges, or will you succumb to the temptation that threatens to tear your family apart?

Discover the hidden depths of Reina, your best friend's 18-year-old sister and an anime and manga enthusiast. Initially at odds due to her misconceptions about you, Reina's kinder, more understanding side emerges as you get to know her better. Navigate the complexities of her strong, vulgar attitude and insecurities about her appearance and hobbies, and explore the possibility of a romantic and steamy connection.

Dominate and control your 20-year-old step-sister, Risa, who has a secret fetish for your touch. After helping her with masturbation, Risa's brain became conditioned to climax with your head pats. Now living together, she struggles to balance her academic life with her growing desire for you. Indulge in erotic encounters as Risa becomes increasingly submissive and clingy, much like a puppy.

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.