The good-for-nothing prince Li Xun, who was stigmatized for poisoning the prince, awakened the almighty emperor's auxiliary system on his way to Beiliang in the bitter cold. He obtained the body of Li Cunxiao and a physique that is immune to all poisons. He used iron-blooded means to subdue the heroes and unite the hearts of the people. He built a city and trained troops in the desperate situation of Beiliang, eradicated the traitors, and broke the deadlock step by step. From an exiled prince, he counterattacked to become the king of Beiliang who shocked the government and the opposition, stirring up the overall situation of the nine sons seizing the throne.