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An exiled engineer discovered ancient technology that could change the world on the eve of the steam revolution. For this reason, he had to fight a bloody path for the future of mankind under the pursuit of a powerful world that regarded machinery as blasphemy.

After the Ten Thousand Tribulations Demon Lord, who unified the demonic path, retired, he sneaked into the No. 1 Immortal Sect to work as a handyman, but was forced to repeatedly jump between maintaining a small and transparent persona and casually saving the sect from fire and water. In the end, he found that the entire Immortal Sect was filled with "acting spirits" who accompanied him in acting from top to bottom.

A modern environmental doctor, his soul traveled to the Qin Dynasty and became an alchemist who was about to be executed. In order to survive, he had to package environmental science into a "fairy magic" and fooled Qin Shihuang into carrying out the "sustainable development" of the Qin Dynasty, dancing on the tip of the knife.