When Lin Fu, a graduate student in the Department of Modern History, was inspecting the Xinzheng Museum, he accidentally traveled to Xinzheng, South Korea in the middle of the Warring States Period, and possessed the soul of a junior official in the Division of Kou who was about to be sentenced to death. When the cold bronze light of the Warring States period shines on his hand that is used to holding a pen, and when the etiquette provisions of the pre-Qin Dynasty collide with the modern historical literacy, he must rely on the fragmented memory of the historical materials of the Warring States Period in the aftermath of Shen Buhu's Reform to transform from an ant on the execution table into a middle-aged doctor who can participate in state affairs. During the exploration of mineral veins in Tieshan, Yiyang, he used the Pythagorean theorem to measure the mine passages; when dispatching ships in the Battle of the River, he used fluid mechanics to improve the ship formation; faced with the dilemma of the Shangdang proton game, he used the fragments of "Han Feizi" to deduce political tactics. There is no golden finger, only rote memorization of historical details and on-the-spot deductions. Lin Fu survives step by step in the power gap between the king of Korea and the nobles, trying to rewrite the fate of Korea from a modern perspective before the decline of "Jinhan" recorded in history books. From the conversion of cloth in the Clothing Office to the construction of Xingcheng barriers, from the inscriptions on the bells and tripods at the Zheng Palace banquet to the household registration verification for disaster relief in Nanyang, he searched for small but crucial fulcrums in the gears of the Warring States Period, and staged a drama of survival and change that spanned a thousand years.
