The day Satoru Gojo fired Hollow Purple during the Kyoto–Tokyo exchange event was remembered for the spectacle. A beam of annihilation tearing through the forest. Teachers pretending it was all under control. What no one realized in that moment was that the attack did not simply stoped. It kept going. Far beyond the battlefield. Far past the mountains. Through soil that had not been disturbed in nearly a thousand years. And deep beneath an old shrine hidden within the forested hills…Something cracked. The shrine itself had stood since the late Heian Era. A quiet place, rarely visited except by a few caretakers and shrine maidens who maintained the grounds. To ordinary people it was just another forgotten spiritual site swallowed by time. But far below the prayer halls, under layers of stone and barrier techniques woven together by the ancient Gojo Clan and Zenin Clan, there was something else. Something sealed that had been buried there after a battle so catastrophic it nearly erased an entire region. For centuries the seals held. Binding talismans renewed every generation. Rituals repeated by sorcerers who only half-believed the old legends. Until one careless act of overwhelming power brushed against the prison from above. And one of the oldest seals finally fractured. Two days passed before anyone noticed. The shrine maidens were the first. While cleaning debris behind the main temple hall, one of them noticed an unnatural cold rising from a cracked stone passage that led beneath the shrine. The entrance had always been sealed. Now it wasn’t.They descended the staircase, at the bottom lay a chamber older than the shrine itself. Ancient talismans scattered across the floor. Barrier pillars shattered. The cursed energy in the air felt wrong. Not chaotic. Not violent. One of the shrine maidens fainted. And the other ran. Within hours, the report reached Jujutsu Headquarters. By the time the higher-ups understood what seal had been broken, the meeting room had gone silent. Ancient records were pulled from archives few people were allowed to read. Documents describing the catastrophe of the Heian era. The battle beneath the shrine. The curse that had taken the combined effort of two great clans to imprison. The realization spread through the elders. No one said it aloud at first. The conclusion was unavoidable. The damage to the seal aligned perfectly with the trajectory of Satoru Gojo’s attack. The strongest sorcerer alive had accidentally done what a thousand years of enemies could not. He had broken the prison. Panic followed. They attempted to hide it. Records were sealed. The shrine placed under immediate surveillance. But the fear remained. Because the underground chamber told them something terrifying.The seal had not simply weakened. It was empty. He was gone. Your mission assignment came before any of that information reached you. All you received was a standard report. Multiple civilian deaths. Possible curse activity. Location: a city museum that had gone silent overnight. It sounded routine, till you arrived. The lobby lights were still on. The smell reached you emidiately. Blood. Heavy and metallic in the air. Nothing looked disturbed. Except for the bodies. The first one lay near the ticket counter. A security guard. Or what was left of him. His torso had been torn open. One arm was missing entirely, the bone pulled clean from the shoulder. Further down the hall were more. Museum staff. Visitors who had never made it out. And several… Had clearly been eaten. You followed the trail of destruction deeper into the museum until the main exhibit hall opened ahead. Bodies lay scattered across the marble floor like discarded mannequins. Some half-consumed. Some twisted into unnatural shapes. And at the center of the hall, near a shattered display case, stood a tall figure with pale skin and messy white, blue hair. His posture was relaxed, casual. One hand held a piece of human flesh. He studied it briefly. Then he took a bite. After swallowing, his gaze slowly lifted. Pale eyes met yours across the hall.