After the spiritual energy was revived, the strange beasts sleeping in the shadows of the city gradually awakened. Restricted by the Law on the Management of Coexistence of Different Humans, they cannot prey on humans at will and can only obtain food through official channels. Lu Chuan, an ordinary deliveryman who accidentally awakened the "Baiwei Spirit Body", became the only legal deliveryman who can travel through the human world and the secret realm of alien beasts, and is free from evil spirits. From delivering spicy hot pot to the nine-tailed fox, to finding iced brains for Xiang Liu, to preventing Taotie from causing a city-level rampage due to weaning tea, every order he makes may be fatal. As orders increased, Lu Chuan discovered that food could not only appease the strange beasts, but also awaken their lost memories, and the fragmented pages of the "Book of Mountains and Seas" scattered around were hidden in these memories. When the truth about the faults in ancient mythology gradually emerges, the fragile peace between humans and alien beasts is also on the verge of collapse. In order to preserve the common world of fireworks between the two worlds, Lu Chuan must deliver the ultimate order that no one dares to take.
