For five years, Lin Zhiyuan paid out of his own pocket to provide free after-school tutoring for left-behind children in his own courtyard. He bought school supplies with his own money, politely declined gifts from villagers, and even converted local specialties he could not refuse into learning materials to distribute among his students. Zhang Cuifang, a selfish parent, maliciously cropped chat screenshots to falsely accuse Lin Zhiyuan of charging for tutoring and accepting gifts after he refused her demand for exclusive lessons for her child, resulting in his suspension. Without his tutoring, the children's grades plummeted, and the villagers finally came to their senses. A hundred households jointly petitioned for his reinstatement, and Lin Zhiyuan produced the complete surveillance footage to prove his innocence.