Lu Jiu, heir to the legacy of the Mojin Colonel, code-named “Ghost Hand,” enters the “Tomb of the Nine Netherworlds’ Mystic Maiden” in response to a mysterious commission. Deep inside the tomb, where traps lie at every turn, he accidentally triggers the central seal and releases Su Li, an ancient demon who has been imprisoned for a thousand years. As her nine fox tails sway, a life-and-death contract takes effect, forcing them to share their lives and powers. One is a top tomb raider, irreverent yet fiercely loyal; the other is a proud and cunning peerless demoness whose powers have yet to return. From scheming against each other to risking their lives for one another, they face pursuit and ambushes from every side as they escape the tomb, then cause a string of hilarious mishaps while she adjusts to city life.
As their explorations deepen, the secrets of more small and medium-sized hidden realms and tombs come to light. Su Li’s demonic arts gradually reveal their full power, while the mystery of Lu Jiu’s origins begins to unravel. But a cult leader covets Su Li’s power, an old enemy among the demonkind plots revenge, and international organizations watch them closely. Even the seemingly neutral “Secret-Keepers’ Society” hides its own mysteries. From the Kunlun Ruins to the rifts of the underworld, from the burden of racial prejudice to the truth behind the betrayal of an ancient pact, can they stay true to each other amid conspiracies and war? And can the ultimate meaning of their symbiotic contract become the key to opposing an ancient evil and rewriting the fate of the world?
A tomb robbing adventure in a modern urban setting, where a thousand-year-old ancient demon was accidentally unsealed, and were forced to form a symbiotic relationship. From being wary of each other and exploiting each other to accompanying each other in life and death, they worked together to uncover ancient secrets and fight against all forces. It organically combines the suspense and horror of tomb robbing, the magnificent imagination of fantasy, the delicate emotions of romance, and the modern sense of the city.