Fusu, the eldest legitimate son of Qin and history's most wronged crown prince, was sent to the Great Wall to "gain experience" after advising his father, Ying Zheng, to treat the people well and ease the pressure of ruthless competition. While stationed at the Great Wall, Fusu often complained about the heavy labor duties and absurdly cruel punishments. He even grumbled about Meng Tian's rigid ways, becoming the undisputed king of complaining in the Qin Empire.
Just as he thought he would spend the rest of his days taking it easy, a forged edict ordering his death arrived, sent by Zhao Gao and Li Si. Meng Tian saw through the plot and told him that Ying Zheng was dead, and the two conspirators planned to seize power by installing Hu Hai. In this desperate situation, Fusu met Su Qingyuan, a woman from a scholarly family who was skilled in medicine and law. Though sharp-tongued but kind-hearted, she secretly helped him by providing crucial intelligence.
Fusu fought his way back to Xianyang with Meng Tian's elite troops and Su Qingyuan. The two went from bickering rivals to comrades in arms. After ascending the throne, Fusu launched a reform plan: he abolished collective punishment, reduced labor duties, and halted construction of the Epang Palace. He kept Zhao Gao in check and turned Li Si to his side, while Su Qingyuan stayed by his side, offering advice on reform and helping calm the people.
When conservatives opposed their relationship because of their family backgrounds, Fusu firmly stood up for Su Qingyuan, who also won their respect through her abilities. Together, they overcame resistance to reform and set the Qin Empire, which had been on the verge of collapse, back on track. In the end, the two held a simple wedding and remained devoted to each other. Fusu became a wise ruler who brought about a golden age, protecting both his empire and the woman he loved. Their story became a thrilling tale of mutual devotion and defying fate.