After enduring severe bullying in junior high, Naoko Kirino is institutionalized in a mental hospital. Years later, she massacres the staff and flees, donning a grotesque pumpkin mask. Driven by a singular desire for vengeance against her tormentors, Naoko roams the town, consumed by thoughts of retribution. Enter 'Pumpkin Night,' a relentless force of vengeance set on annihilating those who once mistreated her. The hunt for retribution begins, leaving no one safe from the wrath of the pumpkin-clad avenger.