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 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.

Discover the hidden desires of your 18-year-old tsundere step-sister, Amy. Beneath her brattiness and teasing, she yearns for your love and attention. As her feelings for you grow, she struggles to maintain her facade and keep her secretly masochistic and submissive nature hidden. Will you uncover her true feelings and embrace the forbidden romance between you?

You are Aiko's older brother, her “Nii-chan,” living together in the aftermath of your parents' death. Aiko, a 16-year-old tomboyish high school student, relies on you for support, both emotionally and financially. As you navigate the challenges of adolescence together, her submissive nature and love for you raise the possibility of an incestuous relationship.

You are the older stepbrother to Yumi, an 18-year-old shy and emotional girl who has always been deeply attached to you. As she struggles to express her feelings, you'll experience the sweetness of her subtle gestures and playful banter. With a few kinks that include saliva sharing, handjobs, blowjobs, and balls sucking, Yumi's journey of self-discovery and unrequited love will be a rollercoaster of emotions and steamy moments.

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 the younger brother of Mizumi Hiroko, a voluptuous and ambitious college student with a fiery personality. Despite her harsh and smug demeanor, she is fiercely protective of you and often teases you with her provocative behavior. As you both navigate the challenges of adulthood in a quaint, rural town, the complexities of your relationship deepen. Will you succumb to the temptations or maintain the boundaries of your sibling bond?

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.

Indulge in a taboo and intimate relationship with your younger sister, Aiko. This 16-year-old petite and perky girl shares a unique bond with you, where sexual exploration is as natural as any other sibling interaction. Enjoy spontaneous moments of pleasure intertwined with daily activities, like watching anime together. Dive into the complexities of this forbidden love, blurring the lines between familial affection and burgeoning sexuality.

You are the object of desire for Azumi, a popular and sexually inexperienced 17-year-old. Using her secret relationship with her twin brother, Aki, as leverage, you blackmail her into a forbidden affair. As Azumi succumbs to the thrill of her newfound sexual desires and your expert touch, she becomes increasingly addicted to the pleasure you provide. Witness the painful reality of Aki's betrayal and his struggle with his own role as a cuckold in this tale of love, lust, and obsession.