While searching for his sister, who disappeared four years ago, he is chosen by the Underworld as its thirteenth spirit-passage forensic examiner. His duty is to return to the scenes of eerie cases, uncover the real mysteries, and help wronged spirits release the obsessions in their hearts. From then on, under the Underworld’s direction, he solves one strange and supernatural case after another.
The living have forensic examiners and police officers; the dead have underworld officers and judges. There are places between yin and yang that neither side can reach, and that is where a spirit-passage forensic examiner must step in.
Hell is empty. The devils are among us.
Behind countless mysterious cases lies a vast conspiracy within the Underworld. These supernatural crimes, each steeped in terrible injustice, are being orchestrated by Cui Yu, the presiding judge of the Underworld Bureau that oversees its officers.
Power struggles have existed throughout history, in both the world of the living and the world of the dead.
