Special Forces soldier Shen La was born with the ability to see ghosts and ghosts. During a mission to capture a drug lord on the Yunnan border, he accidentally entered a cave in the ancient Dian Kingdom and encountered an ancient sacrificial corpse that had resurrected. Shen La's team was almost wiped out. At this critical moment, a mysterious white-haired man, Wu Mian, rescued Shen La and anti-drug police officer Sun Desheng. After the corpse incident, the two of them entered the "Folk Affairs Investigation and Research Bureau" by chance, gradually growing up in supernatural events and unveiling the veil of another world. This is a world that is everywhere but unknown. In this world, there is a mysterious department with great magical powers hidden from the sight of the world, there is a group of mortals who live a prosperous life with secret skills, and there are legends who have transcended the cycle of reincarnation but still mingle in the mortal world. To the general public, they are an invisible and intangible yet real strong shield. To the evil demons, they are thorns in the eyes and flesh that people want to get rid of as soon as possible. But to themselves, they are just flesh and blood people with love and hate, joy and sorrow. They are in the world but have the world in their hearts. They are insignificant, yet extremely important.