I, after a sudden death in 996, was bound to the "Underworld Justice Law Enforcement System" and "resurrected" by earning yin virtues to work as a courier in the human world. From then on, I delivered express delivery during the day and "delivered" evil ghosts at night. Until I bumped into the mysterious master of metaphysics who was rumored to kill without batting an eye in the haunted house. He grabbed my wrist and said, "You smell like the dead."