High school senior teacher Shen Yan tutors students for free, collecting only a small meal fee entrusted to Grandma Zhang to cook for the children, but is maliciously reported by parents like Wang Guilan to avoid fees and is forced to resign. After resigning, he continues to tutor students at home, and former students fund the creation of a compliant tutoring agency for him. Troublemaking parents come to provoke and are exposed by law enforcement officers. Shen Yan produces double top scorers in arts and sciences, and all students exceed the key university line. Troublemaking parents come to apologize, and Shen Yan does not forgive the parents' malice, but is still willing to accept children seeking to study, upholding his original intention as a teacher.