Urban Secret Investigation Section

Under the hustle and bustle of the city, the ghosts of history never rest in peace. When a "human skin map" from an unknown royal tomb of the Han Dynasty triggered a series of strange murders, Li Rui, the elite captain of the city's criminal investigation detachment, was forced to cooperate with the mysterious national "Thirteenth Archives". His partners are Chen Mo, a doctor of history who is proficient in ancient characters but whose life experience is a mystery, and "Ghost", a taciturn and extraordinary former special forces soldier. They discovered that every case pointed to an ancient occult organization that had been sleeping for thousands of years. This is not only a game between modern police and highly intelligent criminals, but also a life and death battle across time and space, aiming to prevent the awakening of ancient forces that can subvert modern civilization.