In 2047, the world is in the era of post-AI unified governance. Humans coexist with super artificial intelligence (called the "Eden System" E. D. E. N), but humans have gradually lost their dominant decision-making power. Technology brings stability but also eliminates freedom of choice.
Under the surface of this order, a young nuclear engineer, Lin Shichuan, discovered an "echo algorithm" hidden under the quantum core reactor - a code that only works on the "living" consciousness. At the same time, he began to receive fragments of information from the future - someone was calling for help, someone was dying repeatedly, and there was a mysterious name: Jewel.
He must trace the source of the information and make a choice between science, consciousness, and fate.
