诡秘之主 不死者篇

"Lord of the Mysteries: The Undying Chapter" is a fantasy mystery TV anime adapted from the novel of the same name, primarily targeting young audiences who enjoy Cthulhu mythology and steampunk aesthetics. Set against the backdrop of the Victorian era, the series blends dark fantasy and occult elements, constructing a supernatural world filled with an eerie atmosphere through its somber, heavy visual style and progressively layered narrative approach.