In a remote mountain village, a 13-year-old girl, Wei Minzhi, takes on the responsibility of substituting for a teacher who has left for a month. Despite the challenges, she is determined to bring back the class troublemaker, Zhang Huike, who has been forced to leave for the city to work due to poverty. With the help of the remaining 26 pupils, Minzhi embarks on a journey to find Huike, who is struggling to survive in the city. Her unwavering stubbornness may be the key to saving Huike and the village school.

Not One Less
A young girl, Wei Minzhi, is unexpectedly thrust into a teaching role in a rural mountain village, prompting the mayor to scramble for a suitable replacement.