This game modernizes and deconstructs the traditional and mysterious underworld setting to create an "underworld" with an independent economic system and business logic. The identity of the protagonist "Underworld Deliveryman" is no longer a simple delivery, but as the only channel for resources and information in the two worlds. By completing "orders" (tasks), he accumulates the first pot of gold (underworld coins and merit), and finally completes his revenge through commercial means, and establishes an unprecedented cross-border business empire. Career novelty: The career setting of "Underworld Delivery Agent" is naturally mysterious and interesting. The things delivered are all kinds of strange (offerings, memories, yang energy, and even a life experience), and the customers you encounter are all kinds of ghosts and gods. Dual world management: The protagonist establishes a business territory in the human world and at the same time accumulates power and wealth in the underworld. The two influence and assist each other, forming a unique dual-line management experience. The wisdom of revenge: The revenge line does not rely on pure force, but uses commercial means, information advantages and underworld resources to carry out dimensionality reduction attacks on the enemy, with a more sense of wisdom and layout. Modern Underworld: A modern underworld full of black humor, with KPI assessment ghosts, ghosts who pay with "underworld pay", and even the "Dianping" of the underworld, which is full of cuteness and imagination. Sense of empire development: From a debt-ridden deliveryman to a business tycoon who controls the economic lifeline of Yin and Yang, the growth path is clear and the sense of cultivation is strong.