This is a wonderful story that combines "waste's counterattack", "time-traveling", "knowledge changes destiny" and "feelings of family and country"! The male protagonist (Lin Mo) once again accidentally traveled to the ancient scholar (Chen Shuo) who came to Beijing to take the exam. He was moved by the simple qualities of Chen Shuo and the villagers, and finally succeeded in gaining fame and living a happy life.
This is the synopsis, no details.