In the 22nd year of the First Emperor (225 BC), when the Qin State was in the process of destroying Wei, the world had not yet been completely unified, the corvee was heavy, the people's livelihood was difficult, and there were conflicts between the reformists and the conservatives within the court. The military urgently needed to improve its equipment and strength to speed up the war of unification. The protagonist Lin Yue travels with a modern manufacturing system and needs to survive in the Qin Dynasty's harsh system and war-torn environment. He uses system technology to change his own destiny and gradually affects the people's livelihood, military and political structure of the Qin Dynasty.
