Datang: It's a Showdown, I Am Erfeng's Illegitimate Son

The protagonist travels through the Zhenguan period of the Tang Dynasty and opens a modern farmhouse outside Chang'an City. A high-ranking official who calls himself "Old Li" often comes to have a meal, and the protagonist brags to him about "extending favor orders", "spreading people into acres", and "the pattern of the world." With the severe drought in Guanzhong and the invasion of Turks, the potatoes, curved plow and steel-making skills brought out by the protagonist came to fruition one by one. Finally, Lao Li showed his cards: "I am Li Shimin, son, come back and take over the throne."