He was once the most brilliant genius of the era, but his soul collapsed and his memory disappeared during a forbidden experiment. In the ten years since he regained consciousness, he was forgotten by the world and quietly became a trainee apprentice of the lowest-level night watchman. He has strange bloodstains on his body that cannot be healed. He must sip a silver scale every night. He does not know where he came from and who he is keeping vigil for. He walks in the enchanting realm of dawn and twilight with only minimal knowledge. The world structure is quietly changing: the Millennium Empire is declining, the whispers of ancient gods have emerged, the Alliance of Extraordinaries is on the verge of civil strife, and the "Prophecy of Judgment Day" hangs high in the sky. Until a serial theft of monsters involving three major forces came to light - the lost scepter of judgment sounded again, and the only name that emerged from the fragments of his memory was enough to make the three worlds tremble: "I am... The final 'Judge'."