Li Yue, a double PhD in modern materials science and engineering, accidentally transmigrates to the seventh year of the Zhenguan era (633 AD) during a cultural relic restoration experiment. He becomes the county lieutenant of Guancheng County in Zhengzhou. Equipped with the All-Purpose Market Rescue System, he possesses technological blueprints far ahead of their time, yet must tread carefully through the rigid hierarchy of the Tang bureaucracy. When scientific thinking clashes with the splendor of the Tang, and technological innovation runs up against institutional barriers, how will he reshape the foundations of this golden age?
