The Underworld Courier Station

After Chen Jiu takes over a courier station on the outskirts of the city, he discovers that every night at two, the System automatically generates a batch of deliveries from the dead, with no sender listed. Some recipients are already dead, some will die tomorrow, and others should never have been born. If he delivers each package on time, he can rewrite an old case. If he refuses, the contents will come looking for him. Paper wedding contracts, headless photographs, and coffin delivery receipts appear one after another. Only then does Chen Jiu understand: this isn't a courier station, but the last lost-property route connecting the worlds of the living and the dead.