A high-impact dark fantasy anime illustration in a medium shot and low-angle view, centered on a long-haired black-haired girl undergoing a violent "demonization" in a desolate night shrine. The girl stands crookedly, her head tilted back with a distorted expression of agony and black tears streaming from her eyes; her hands are gripping her chest tightly as her skin cracks open from the sternum, revealing thick black mist and crimson bloody fissures, while her hair roots transform into spiked black horns and her fingers elongate into sharp claws. Simultaneously, a colossal demon—a pitch-black entity composed of flowing smoke and shattered masks—violently erupts from her chest and back, featuring a distorted version of the girl's face with three pairs of blood-red eyes and arms flinging wide like a cocoon breaking. The environment features a ruined shrine with broken torii gates, weathered lanterns flickering in thick fog, and withered paper talismans scattered across the ground. The atmosphere is oppressive and dynamic, utilizing high-contrast chiaroscuro lighting, a dark color palette dominated by deep blacks and vivid reds, and swirling black mist that stains the air, rendered with cinematic composition and extreme detail.