[Tang Dynasty] Working Hard to Be the Crown Prince Today, Too

Three-and-a-half-year-old Li Chengqian was bound to a powerful nation-building System designed for the twenty-first century. During the years he was forbidden to leave home because a fortune-teller had read his fate, Li Chengqian used the System to learn about the outside world. He learned that it was peaceful and stable, with flourishing technology and a convenient life for its people. It was far better than his own impoverished home. Later, when Li Chengqian finally left home and saw the real world outside, he at last realized the painful truth: It wasn't just my family that was poor. The entire Tang Empire was poor! A backward nation will be beaten. Li Chengqian pulled himself together and vowed to build a prosperous new Tang and withstand the invading powers' artillery. He studied diligently and worked tirelessly to strengthen the nation, eventually transforming the Tang Empire and securing his position as Crown Prince. With the people praising him and all nations paying tribute, even those across the ocean bowed in congratulations. Sitting high on his throne, Li Chengqian looked utterly confused. What happened to those foreign powers? * Everyone knew that Li Chengqian was a disruptive force in Tang politics. He pushed himself and everyone around him, just in a somewhat different direction. When three princes competed for the throne, he said, "What's the point of ruling a poor country? We should build more paved roads and make more money." When the remonstrating officials tried to control everything, he said, "Use that time to farm! Grow rice that yields eight shi per mu, and you'll earn a better reputation than by picking fights!" After Li Shimin ascended the throne and got a little carried away, Li Chengqian looked up at him and asked, "The people still don't have enough to eat or warm clothes. Do you think you've earned it?" Everyone: "..." But everyone also knew that Li Chengqian was the new hope of the Tang Empire. P.S. Alternate history. Theme: Knowledge changes the world