A young man who graduated from a modern graduate school traveled through parallel time and space to the Tang Dynasty due to a car accident, and became the eldest son of Li Xiaogong. He first planned Li Shimin's Xuanwu Gate Revolution, and then was reused, opening a restaurant and doing business in the Tang Dynasty, helping the court solve financial difficulties, establishing schools to cultivate talents, reforming the imperial examination, reforming the official system, and reforming the army. Vigorously develop the economy and lead everyone to work hard after the Weishui Alliance. Finally, the Turks, Tuyuhun, and Goguryeo were destroyed. During Li Shimin's Zhenguan Dynasty, the surrounding countries were unified. After Li Chengqian came to power, he assisted Li Chengqian in ruling the world. Finally, he retired and retired from the world.
