Sui Dynasty: a Scholar Actually Served as an Imperial Guard

[No system + funny + nonsensical + steady development] Traveling to the Sui Dynasty, Emperor Wen of the Sui Dynasty eavesdropped on his heart. [Hold the grass, in the 600th year of the Sui Dynasty, Emperor Wen of the Sui Dynasty abolished the elders and established the younger ones, and selected a person who would ruin the country. Emperor Wen of Sui Dynasty: What? Will Guang'er lose his country? The position of prince is temporarily vacant. [Eighteen years later, the Sui Dynasty will be destroyed. I need to find someone in advance. Emperor Wen of the Sui Dynasty: I want to run away, Wu Aiqing, let's see who can become the prince? Ask me? None of your sons have any future!