Zhou Lang, a modern delivery boy, accidentally transformed into a failed scholar from ancient times, with a poor family. Seeing that the provincial examination was about to take place, he went back to his old job - using bamboo baskets to carry cakes, wooden signboards to keep accounts, and running errands and delivering meals to students rushing to take the examination. Everyone laughed at him for "insulting the saints", but he relied on modern management thinking to make his "errand service" a hit at the college, and even rescued an examiner who was trapped on a mountain road on a rainy night. On the day when the imperial examination results were released, he was the only one who achieved first-class grades in all subjects, but refused to be awarded an official position. He knelt down and asked the emperor to open the "Wanmin Sudasi". On top of the Golden Palace, he unfolded the "People's Livelihood Displacement Policy" and pointed at the map with his fingertips: "I am willing to use the horseshoe as a pen and the post road as a scroll to weave a net for the country to have no worries about food and clothing."