Xu Fei, a doctor of Chinese language and literature, was born as a five-and-a-half-year-old peasant boy. Due to his grandmother's partiality, he was forced to work to support his uncle and cousin. Unwilling to be buried, Xu Fei relied on his previous knowledge and showed his talents by reciting the "Three Character Classic" at the dinner table, and won the opportunity to attend a private school. After enrolling in school, he easily got through the difficulties faced by his teacher at Qian's Second School, and even won the first high school case in the county examination, making him famous. Faced with Dafang's successive slanders and frame-ups, Xu Fei skillfully used his knowledge of chemistry to dispel the rumor that "Wenqu is evil", and used the "Frontier Grain Policy" to prove his innocence in front of the Minister of Civil Affairs, completely shattering the conspiracy. Xu Fei cleared his grievances, got the opportunity to go to Beijing to meet the saint, and opened up a broader career.