He traveled back in time and became the prince of the Tang Dynasty, Li Chengqian. As soon as he opened his eyes, he was kicked out of the palace by Li Shimin because he "understood the sentiments of the people" and suffered a huge loss. Faced with the court's plot and the family's troubles, he relied on modern knowledge to create a heating iron stove in an attempt to make a comeback. Unexpectedly, the emperor was alarmed, and he even met a free clinic girl who was being made trouble by a wealthy family on the street. Let's see how the little prince managed to survive in the early years of Zhenguan and stir up trouble!