Traveling through the Tang Dynasty, Zhang Nuo just wanted to run the tavern safely and securely. When the economy improved, he would buy a maid and marry a beautiful wife to live a good life. As a result, a special guest came to him on the first day of business-Li Shimin. As a time traveler, he has vision and knowledge far beyond this era. His casual remarks were deafening to Li Shimin's ears. Soon after, Zhang Nuo discovered that what he casually said turned out to be Datang's policy for governing the country...