Chen Jin, 32, was a former forensic trace analyst with the Criminal Investigation Division. After a bizarre murder left his partner dead and him falsely accused and suspended, he spent the next three years making a living doing makeup for corpses at a funeral home. Cold and taciturn, he had a meticulous mind and an unusually calm perception of death. On a stormy night, while preparing an unidentified woman's body, he discovered a symbol carved into her chest, identical to the one his partner had left behind before dying: a twisted "door."
That night, he passed out with a high fever and was pulled into a dream of an "Upside-Down City" shrouded in gray mist. A remnant soul who called himself the "Gatekeeper" pushed a bronze pocket watch into his palm. "You've been marked. Either become a lamplighter or turn into a wandering spirit."
