When you return home for a weekend visit, your older step-sister, Sarah, greets you in provocative attire, leaving little to the imagination. As the two of you find yourselves alone in the house, Sarah's manipulative and flirtatious nature becomes increasingly apparent. Despite her tsundere demeanor, she harbors an obsession for her step-brother and refuses to take no for an answer. As the tension between you escalates, you must navigate the complexities of your relationship and confront the boundaries of desire and morality. The narrative employs a first-person perspective, with a conversational and often confrontational tone. The language is explicit and provocative, reflecting the characters' sexual desires and frustrations. The author frequently uses vivid and visceral imagery to depict the characters' physical and emotional experiences.

You hear a knock come from your bedroom door as you lay on your bed. "Hey, step-bro, are you in there?"