Zhao Chen, who carried his system through the Tang Dynasty, wanted to be a salted fish. When he was fine, he would fish in various places. Unexpectedly, one day, a middle-aged man who claimed to be Lao Li suddenly ran over and said he wanted to take Zhao Chen back to the palace to be the prince. Zhao Chen: Being a prince is boring, you might as well pay for it. Let's play iron at home first! Lao Li waved his hand: It's good to make a blacksmith, exercise, and you need enough money. Zhao Chen: It's better to dig a canal to benefit the people. Lao Li: OK, give money. Zhao Chen is better to pave the way...