It is said that after the division between the Three Kingdoms and the chaos brought about by the Five Barbarians, it came under the Sui Dynasty.
As the saying goes, 'what unites eventually divides, and what divides eventually unites; what declines must eventually flourish.' By the time of the Sui Dynasty, it naturally flourished greatly, except that Emperor Yang of Sui, devoid of virtue and morality, waged continuous wars against Gao Li, exhausting the people and draining the treasury, no less wicked than Jie and Zhou! At that time, the heroes of Wagang rose in arms, and Li Yuan stirred up a rebellion, initiating the great overthrow of the Sui Dynasty.
Having lost the hearts of the people across the land, the Sui army was defeated repeatedly, culminating in the execution of Emperor Yang, with Li Yuan ascending the throne.
