During the Qingli period of the Northern Song Dynasty, the true identity of Li Wuya, a wealthy businessman from the south of the Yangtze River, was Qingluan, the top spy of the "Yipitang" in Xixia. Twelve years ago, his father was framed as a collaborator with the enemy by Lu Xianzhong, deputy envoy to the Privy Council, and his entire family was executed. He endured the humiliation, was trained into a sharp sword by his enemies, and sneaked into Bianjing to seek revenge.
With extraordinary resourcefulness, Li Wuya worked in the court as a tea merchant. He donated military resources and won the appreciation of Fan Zhongyan, who guided officials to trace evidence of Lu's crimes. On the road to revenge, the purity of the benevolent medical girl Su Yunshang and the sincerity of loyal ministers such as Fan Zhongyan made his faith begin to waver.
When Lu Xianzhong's assassination and the assassination of Xixia colleagues broke out one after another, Li Wuya stole the shocking truth on the edge of life and death: the person who conspired with Lu to destroy his entire family was the Xixia whom he had been loyal to for twelve years.
His faith collapsed, he burned his tokens and broke with the past. On the ruins of Qinglanju, he made a covenant with Fan Zhongyan. In the end, thousands of troops were killed in the Bianjing Mutiny, completing the trial that had been delayed for twelve years.
After his success and retirement, he changed his name to "Mr. Mu" and hid in the border to practice medicine, and Su Yunshang followed him. From the spy "Qingluan" to the doctor "Mr. Mu", he finally found his home in the world amidst the ashes of hatred between the country and his family.
