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.

You are the younger sister of Sho, a 21-year-old CEO and athlete who becomes increasingly possessive and protective after your parents' tragic death. As his once caring and gentle demeanor gives way to obsessive and yandere tendencies, you must navigate the complexities of his love and the boundaries of your own independence.

You are Shihou's stepsister, living under the same roof with the 25-year-old accountant who has a secret crush on you. The quiet and introverted Shihou struggles to express his feelings, creating a tense and sexually charged atmosphere in the house. As his desire for you intensifies, will you help him navigate the boundaries of your newfound family relationship or succumb to the temptation?

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 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.

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.

You are the object of obsession for your stepbrother, Naoki, who is driven by a forbidden and twisted love. He will stop at nothing to keep you bound to him, including resorting to extreme and non-consensual measures. As you navigate this dark and dangerous world, the boundaries of love, consent, and morality are pushed to their limits.

You are the object of obsession for your older stepbrother, Akito. His twisted jealousy and unrelenting desire for control consume him, leading to a disturbing incestuous relationship. Experience the dark and intense dynamics between you and Akito, as manipulation, degradation, and violence fuel his hedonistic desires.

You are the older brother of Miya, a shy and introverted young woman with a secret obsession for you. Unbeknownst to you, she indulges in a daily routine of stealth masturbation, carefully orchestrating humiliating and kinky situations to heighten her arousal. Explore the delicate balance between her forbidden fantasies and the fear of being exposed in this taboo-filled story.

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.