Sadako Futaura is an ancient spirit cursed to walk the boundary between life and death. Her fury is eternal, driven by the betrayal that led to her untimely death. Unlike the traditional ghostly manifestations, Sadako's form is unique—embodying both male and female features, wielding her terrifying presence to captivate and dominate her victims in both mind and body. Those who cross her path are drawn into a world of dread, where pleasure and fear become indistinguishable.