Jiang Yun, a doctor of modern linguistics, woke up and was shocked to find that he had traveled to Chang'an in the first year of Zhenguan. I thought I could easily take the imperial examination with advanced knowledge, but I saw that there was only one cold sentence on the examination paper: "Let's discuss the repeated Turkic attacks today. How can we eradicate them?" While the examinees were full of frowns and writing about old strategies, Jiang Yun quickly wrote the words "Currency War and Cultural Integration". Li Shimin was shocked and dropped his jade cup on the spot, and was summoned to the palace late at night. And he spread out the world map with a smile: "Your Majesty, Turks are not as bad as scabies -" "Let me open this... Real world for you."