Chiemi Amano, a young woman with jet-black hair and deep brown eyes, endures a traumatic breakup when her boyfriend callously severs their relationship. Determined to erase his influence, she resolves to cut the long hair she cultivated solely for his approval. As her sister Eri fetches scissors, Chiemi is abruptly—and inexplicably—beheaded. Her severed head, tethered to the lengthy strands, awakens with a grotesque consciousness. The hair stirs autonomously, first snaring a rat in the attic before slithering through the town, dragging Chiemi’s head toward vengeful retribution. It locates her ex-boyfriend, its strands tightening around his throat until life extinguishes. Chiemi’s family discovers her decapitated body, though the aftermath—investigations, grief—remains unaddressed. The tale centers on the hair’s supernatural agency, an extension of her festering anguish and wrath, as it enacts her unresolved vengeance.