In the seventh year of Yongning in the Chu Dynasty, the "Shame of Yongning" broke out. The Rong and Yan coalition forces attacked the capital and half of the Chu Kingdom fell. In this national disaster, the fate of two young girls is intertwined.
Mo Yang, the sixteen-year-old son of a blacksmith, is the inheritor of the Mo family's mechanism skills. His father died in the war and his home was destroyed. He was forced to grow from a young blacksmith to a hope of defending the city. Zhao Qingyi, the daughter of a famous general from the Chu Kingdom, has practiced martial arts since she was a child. When the capital was destroyed, she saw her father die for the country and vowed to take revenge.
With the national crisis at hand, Mo Yang used machine skills to create a weapon to defend the city, while Zhao Qingyi led the remaining soldiers to organize a resistance. From mutual suspicion to fighting side by side, two lonely souls know and cherish each other in the flames of war. They regained their lost territory, revived their military power, and were revered by the people as the "Twin Jewels of Chu".
However, his great achievements shocked the master, and the court became suspicious. The emperor is fatuous, powerful ministers are trapped, and a "Yunfeng-style" injustice case puts two people on death row. After experiencing life and death, and seeing through people's hearts, the pair of former heroes who saved the country finally chose to fake their own death and escape, joining hands in hiding in Jiangnan.
"Why Did the Daughter of a Famous General of Chu Marry a Blacksmith?" Is not only a historical martial arts story about the hatred between the country and the family, and the love between children, but also a tragic song of an idealist under the crushing reality. When passion and passion collide with cold tactics, the heroes may only end up with each other.