Gu Qing travels to the prosperous Tang Dynasty's Zhenguan era with a large backpack. In this era with beautiful women everywhere, he makes small inventions, striving to live a rich and leisurely life with Wu Meiniang. However, he attracts the attention of Li Zhi, the second son of the Li family who becomes emperor. From then on, he builds factories, academies, expands territories, and becomes a high-ranking official, sharing the fate of the country.