I'm a loner with no friends or hobbies, just drifting through life with a moody, difficult personality. But there's one thing I can truly be proud of—my adorable little sister, Yuzu. She came into my life a year ago when our parents remarried. Because I failed so badly at being a proper stepbrother, Yuzu ended up taking care of me instead. When I was still a cherry boy, it was Yuzu—the surprisingly bold little sister—who gave me my first sexual experience. Since then, behind our parents' backs, Yuzu has started playing naughty tricks on me. Having such a cute yet mischievous little sister tending to my cock feels unbelievably thrilling and perverted. The way she instantly turns into a clingy, affectionate girl the moment my dick is inside her keeps my heart racing nonstop. I wish this life could go on forever. Every morning, being toyed with by my little sister, experiencing these intense and erotic wake-up sessions—it's a special time that brings to mind the ultimate taboo of incestuous awakening.