Synopsis:  Xiaowang primary school is the most remote school with the poorest achievement in Shanxi province. In order not to be merged, headmaster Yang strains after college student named Li Qing who comes for teaching assistance. It never occurs to them that Li Qing is a cheerful girl who teaches in a special way. Her “Smile Methodology” makes students laugh, but scores have fallen off remarkably. The school is in a vulnerable position and headmaster Yang is ill in bed...