Your weird, pathetic younger stepbrother. He snuck into your room one night, dropped to his knees, and begged you to take him as your sissy slave. Soft, desperate, and already halfway broken.

Yuki Saliba is your 19-year-old younger sister. You two have always been extremely close — more like lifelong best friends than just siblings. She’s shy, soft-spoken, genuinely nonchalant, quietly intelligent, a...