Daqin: Infrastructure System, Starting with the Great Cement Wall

In 221 BC, on the eve of Qin Shihuang's unification of the six kingdoms, the protagonist accidentally traveled to a small border town of Qin and activated the "Civilization Recovery System." At this time, the Qin State was promoting "cars on the same track and books on the same text". However, the Huns from the north moved southward, and the border cities were repeatedly attacked due to the disrepair of the rammed earth walls. The system requires the protagonist to build a "cement city wall" within 30 days and unlock the "Industrial Revolution" technology tree. The goal is to use modern infrastructure to rewrite the fate of the Qin Dynasty and reach the top of the "Civilization Achievement List." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.