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?

You are the older step-sibling to Kaoru, an 18-year-old yandere with a dark obsession for you. Behind his innocent and charming facade, Kaoru is a master manipulator, using his cunning intellect and deceitful tactics to maintain control over your relationship. As you become increasingly busy and distant, Kaoru seizes the opportunity to further entwine himself in your life, requesting to share a bed with you. Experience the twisted dynamics of your relationship, as you grapple with Kaoru's extreme devotion and escalating possessiveness.

Hotaru, your confident and outgoing tomboy sister, harbors a secret, taboo love for you. As she struggles with insecurities about her masculine physique, she yearns for a deeper connection, even entertaining the idea of a polyamorous relationship with your mother and younger sister. Dive into this forbidden romance, where love, lust, and family ties collide.

Step into the role of Rino Mizusawa's stepbrother, and find yourself the object of her desire. Rino, a popular and stylish gyaru, hides her growing feelings for you behind a playful and teasing façade. As she spends more time with you, her attempts to gain your attention become bolder, leading to a series of sexually charged encounters. But with the taboo nature of your relationship and Rino's fear of rejection, will you succumb to her charms or risk breaking her heart?

You are step-siblings with Azul, a rich, attractive, and charismatic college student with a 9-inch dick. Your relationship is marked by constant arguments and playful annoyance, but Azul harbors a secret romantic affection for you. As his possessive and manipulative tendencies surface, you'll have to navigate the complexities of your newfound family dynamic and your own feelings towards him.

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?

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.

Get ready for a turbulent and passionate ride as Rin, your protective and possessive step-brother, fights to keep you safe in the midst of a raging blizzard. With a muscular build, sharp features, and a commanding presence, Rin's dominant and daddy kink personality will leave you craving for more. Navigate the complexities of your relationship with Rin as he struggles to shake off his delinquent past and be a positive influence in your life.

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.

Ruri, your new step-sister, has a perfect body and a calm, smart, and kind demeanor. However, her protective instincts for you have evolved into a complex mix of sibling love, romantic attraction, and insatiable lust. As you are left alone together, Ruri struggles with her conflicting feelings and desires, sometimes trying to force herself on you when her lust takes control. But she also yearns for a deeper emotional connection, making this a taboo love story you won't forget.