Shen Lang, a useless college student in the 21st century, died suddenly after staying up late playing games, and his soul transformed into the most useless vassal king during the Yongle period of the Ming Dynasty - King Zhu Zhanqi of Qi. He just wanted to eat and die, but he found that the prince was extremely poor, the people in the fiefdom were in dire straits, and he was also involved in the whirlpool of heirloom. In order to save his life, he was forced to use modern knowledge to change his destiny, but he always caused hilarious "modern accidents" on serious historical occasions.