A young man from the modern era transmigrates into the body of Zhou Dazhuang, a young villager from Hexi Village in ancient times. Despite his family's poverty, he refuses to accept his fate. By chance, he discovers wild chili peppers on the back mountain and tells his grandfather, Old Man Zhou. The Zhou family makes its own chili sauce to supplement their household income, then gradually expands into other businesses, including braised meat and roujiamo. Their lives become increasingly prosperous. However, their growing business attracts schemes from competitors, while disputes over money also arise within the family. Zhou Dazhuang cleverly resolves each problem one by one. After saving enough money for his private-school tuition, he changes his name to Zhou Ruhan and begins studying at a private school. While dealing with family affairs and conflicts, he studies diligently in preparation for the imperial examinations.