Chen Juan, the project manager of "Juan King" with an annual salary of one million, was unexpectedly reborn as a humble civilian on the border of Daqin. Faced with the long construction deadline, cruel supervisors and low efficiency, his professional DNA was shaken! As a result, he "grafted" modern management methods such as KPI, performance appraisal, and corporate culture construction to the Qin Dynasty construction site. Amidst all the jokes, he actually built the Great Wall to a new height, and unexpectedly became Da Qin's "national division-level project manager."