The machine city of Yunyuan Continent is suspended above the sky rail, and the coldness of metal flows in the meridians of the immortal cultivators. When Mo Xian exchanged twenty years of his life for a gear that suppressed the ferocious beast in his body, he did not know that this transaction had already been written into the prophecy thousands of years ago - that the "perpetual core" that had been obliterated by the world of immortality was slowly awakening in the giant bronze coffin at the bottom of the sea.
A young man from a run-down family has a forbidden mechanical root, and the ancient machine beast sealed in his body gnaws at his memory every month; a cold-faced androgynous killer discovers during the mission that he is a perfect puppet created by his enemy; an old storyteller who walks around the market, every wrinkle hides the heinous sins that caused the chaos of the Mechanic Immortal. Twelve fragments of the Tiangong Diagram are scattered across the nine realms, and each fragment reflects the bloody experiment that turned living people into gears a hundred years ago.
When the cultivators of immortality began to mass-produce emotional Taoist companions, when merchants in the Mechanical Spirit Market traded life spans for gears of integrity, when the bronze number on Shen Qingming's collarbone resonated with Mo Xian's Thousand Chance Umbrella - the conspiracy that had been dormant for thousands of years finally clicked on the first gear. And they gradually discovered that the so-called "mechanical calamity" devouring cultivation was just a sign of hunger before the perpetual core restarted.
At this moment, the sky rail is cutting the lifeblood of Yunyuan Continent, and the sound of friction between machinery and bones can be heard from the ruins of the Immortal Platform. Those truths sealed in the memory gears are waiting for a destined person who is proficient in both the Xuanji Point Technique and the Reversal Pulse Technique to solve the final mystery: Is what the Mohist family and the immortal cultivators jointly sealed back then a world-destroying weapon, or a foolish witness of mankind's rejection of mechanical ascension?
Conception:.