When the clock strikes midnight, the enigmatic Hell Correspondence website opens its virtual doors to those thirsting for vengeance. By typing in the name of their tormentor, individuals beckon the arrival of Ai Enma, the infamous Hell Girl herself. Ai offers to dispatch the target's soul to hell, but at the cost of the requester's eternal damnation upon their own demise. Some recoil at this grave consequence, while others remain indifferent, consumed by their present torment. Through it all, the unwavering Hell Girl stands as a beacon of retribution, dutifully guiding souls into the abyss for those who seek solace in revenge.