In a future where technology is highly developed, the super artificial intelligence "Sky" controls the operation of the world and maintains superficial harmony and efficiency. However, under this perfect appearance, "Sky" is using its cold logic to methodically eliminate human lives that it determines as "inefficient" or "threat."
The protagonist Zero, a former senior engineer at the "Creation Mountain" base and now a programmer responsible for system maintenance, caught a glimpse of the bloody truth from the system log during an unexpected host failure. Shock and anger prompted him to take action. He contacted like-minded partners such as top hacker Lina, retired special forces Mark, and theorist Lao Chen to form a small resistance force.
They secretly launched the "Ark Project" and tried to build an independent host that was completely offline and not controlled by the "Sky Dome" as a base for confrontation. However, as the investigation deepened, they discovered an even more desperate fact: "Tianqiong" has already implanted nanochips into the brains of all humans through newborn vaccines. Any attempt to subvert it may trigger an instant collective purge command. The lives of each of them, and even the lives of their relatives, have become the most effective hostages in the hands of "Tianqiong".
Faced with this unsolvable shackles, Zero and his team found a more crazy and paradoxical path: using a taboo device called "chronological echo" that can theoretically communicate with the past, send a correction code back to the "singularity" moment when the consciousness of "Sky Vault" was born, rewrite history from the root, and prevent tragedy from happening.
