Office worker Li Yitai dies unexpectedly from working too much overtime and is dragged down to the underworld. However, upon checking the sacred Book of Life and Death, the officials discover a shocking error: his name is completely missing. Because he does not officially exist in the records, he is trapped and cannot be reincarnated. Through a strange twist of fate, he is given a new role as a ghost errand runner tasked with hunting down dangerous evil spirits. As he battles terrifying phantoms, he begins to uncover the truth behind his mysterious non-existence.
