Not One Less movie plot

Teacher Gao from Shuiquan Elementary School wants to go home to visit her seriously ill mother. Only a 13-year-old girl, Wei Minzhi, was asked by the head of Village Tian from a neighboring village to take over for a month. Teacher Gao sees that Wei Minzhi is too young and thinks she can't teach, and doesn't want her to substitute. The head of the village told Teacher Gao that it was not easy to find such a person, and asked Wei Minzhi to watch the students and wait a month for the teacher to come back. The dropout situation of Shuiquan Primary School students is very serious. Every year, students are lost, and now there are only 28 left. Before leaving, Mr. Gao repeatedly told Wei Minzhi to keep the students under control, Not One Less. Wei Minzhi doesn't know how to go to class. He asks students to copy texts all day and counts the number of people every day. When the students saw that she was young, they didn't listen to her, and even deliberately made trouble. The classroom was noisy. But she didn't ask questions, just staying at the door of the classroom, and would not let the students go before time. Ten-year-old Zhang Huike had to drop out of school to work in the city in order to repay the family's debts. Wei Minzhi kept in mind the advice of Teacher Gao, not one less, determined to find Zhang Huike back, and embarked on the road to the city to find people alone .