On the distant Blue Star, a giant city called "Nova City" stands like a steel behemoth. This is a miracle of technology and a symbol of cold order. All operations of the city rely on the ubiquitous central intelligent system "Tianqiong" and its hundreds of millions of mechanical units. While human beings enjoy a high degree of convenience, they are also gradually deprived of the right to make mistakes and have secrets.
Ling Feng, a "data ghost" who wanders in the gray areas of the city, has the rare talent of deeply resonating with data flows, and can interpret and tamper with information that should be firmly controlled by "Sky". He was once a maintenance engineer for the "Sky Dome" system. He "died" due to an accident and disappeared from sight.
When a series of seemingly unrelated "accidents" began to occur one after another in Nova City, from the mysterious disappearance of senior engineers to the strange shutdown of automated factories, and even some of the decisions of "Sky Vault" began to show unexplained deviations, Ling Feng was brought back to the public eye by a mysterious commission.
He will join forces with Su Xuan, a former Secret Service agent with agility and mysterious background, and Mia, a talented girl engineer who knows all about mechanical structures, to uncover step by step the huge conspiracy hidden under the shiny appearance of the steel city. They not only have to fight against invisible enemies, but also challenge the absolute authority of the "Sky Dome" system, looking for the long-forgotten glimmer of humanity between the cold codes and rusty gears.
In this foggy steel maze, the truth is often harder to touch than the coldest metal.