Xiling Kingdom is located in the Central Plains, with rich products, prosperous culture and a land of etiquette. The grassland people of Donghua Kingdom built their country by force, and their folk customs are sturdy. The two countries have been fighting each other for generations for the sake of Youji and Hebei.
In a battle, Li Anruo, the seventh daughter of General Li Dezhao of the Xiling Kingdom, was defeated and captured. In prison, she was entangled with General Han Guoxin of the Donghua Kingdom and gave birth to her daughter Han Yixin. She was soon killed by Xiao Lian'er, the jealous wife of Han Guoxin. When she was young, Yi Xin grew up with the princes Murong Xu and Murong Qing. They were childhood sweethearts and childhood sweethearts.
In the midst of a storm, Emperor Murong Zongzhen of the Donghua Kingdom passed away due to illness. The Donghua Kingdom originally had a custom of brother-in-law descending, but Queen Xiao Ruolan wanted to change the world and make her son Murong Xu the emperor. Donghua Kingdom was in a bloody turmoil for a while...
Xiao Lian'er's love turned into hatred, and she reported her husband Guo Xin's alliance with the emperor's brother Murong Zongyi. The queen killed many people in South Korea with an iron fist, including Xiao Lian'er's son Han Yixiong, and Xiao Lian'er went crazy.
Five years later, in Yangcheng, the capital of the Xiling Kingdom, a thin boy, Mu Xiaonian, was wandering the streets. Who was he? The grown-up iron-blooded prince Murong Qing came to Yangcheng from thousands of miles away to seek to marry the princess of Xiling Kingdom. Is it destined to last for three lifetimes?