Lin Yu, a graduate student majoring in history, accidentally traveled to the Warring States Period and accompanied the young First Emperor to endure hardships and grow up. Along the way, he won the hearts of Princess Zhao, Princess Qin, and Princess Yan, and married them respectively. The three princesses knew each other and fell in love. They used their knowledge and knowledge to help Qin Shihuang unify the six countries, and persuaded the first emperor to implement benevolent governance, rest with the people, attack the Huns from the north, build the Great Wall, and protect the young master Fusu, eliminating Zhao Gao.
