[Datang, time travel, farming, system flow]
Chen Ping'an, a doctor of agriculture and geology, traveled to the late Sui Dynasty and rescued Princess Li Xiuning of Pingyang Zhao who was being surrounded by pursuers at the beginning. With his superb medical skills and the immortal method of conjuring high-yielding grains out of thin air, Chen Ping'an was regarded as an honored guest by Li Yuan who launched an army in Taiyuan. When the wine was full of wine, Li Yuan took Chen Ping'an and worshiped him, granting him the title of the only King of the Tang Dynasty with a different surname.
Li Shimin looked at Chen Ping'an, who was two years younger than him, and called out "uncle".
The eldest grandson Wugu often came to the house to ask for advice on arithmetic.
Chen Ping'an's ambition is simple: to be the largest landowner in the Tang Dynasty and dominate the world's business.
Li Jing wants to fight the Turks but has no money? Chen Ping'an waved his hand and said, "I will cover all the military expenses. The only condition is that the grassland in the north will be fenced off for me to raise sheep!"
