The night when Su Ming, an unemployed college student, signed for the bronze bell, the [Yin Yang Express] system was automatically installed on his phone. Sending a mahogany comb to a female ghost in a haunted house, bringing a corpse elixir to the morgue for a live broadcast, and delivering a divorce agreement to a thousand-year-old fox demon - every time he completes an order, there will be a bloody mark on his book of evil deeds.
