Su Wan is the biological daughter of head teacher Zhou Jianguo, taking her mother's surname, and never makes this relationship public at school. She habitually asks Lao Zhou for various small favors, which the new poor transfer student in the class, Zhao Xiaotang, dislikes, and begins to copy her in asking Lao Zhou for help. When Lao Zhou refuses to pay an advance of a thousand and two for material fees for Zhao Xiaotang, Zhao Xiaotang publicly spreads rumors at the flag-raising ceremony that Su Wan and Teacher Zhou have an improper relationship. Zhou Jianguo publicly exposes the father-daughter relationship on the spot. Zhao Xiaotang then colludes with others to edit a video, attempting to use public opinion about "privileged oppression of poor students" to cause secondary harm to Su Wan. After the school investigates and clarifies the truth, Zhao Xiaotang is disciplined and transferred to another class, and Su Wan's life returns to normal.