When the steam gears bite the starry sky, the shadow of Cthulhu resurrects in the cracks of the rivets. The mechanical prosthetic man Lin En carries the God-killing spine on his back. In the conspiracy of the Gear Church and the Eternal Sleeping Maritime Merchant Guild, he reveals that human beings are just "typos" in the script of the old gods. Leona coughed up the burning family fate, Irene's coat of arms was engraved with quantized love and hate, and the rusted truth was: "Those who fight against the gods will eventually become the yardstick for measuring divinity." Steampunk and the Cthulhu Abyss collide here, and the lamentation of flesh and metal plays the final chapter of doomsday - if machinery is another kind of flesh and blood, madness is the most sophisticated rationality.