Zhang Guimei (Song Jia)Zhang Guimei is an ordinary female middle school teacher in the mountainous area of ​​western China. Over the years, she has witnessed her female students drop out of school due to family poverty, get married and have children, or go out to work when they are 15 or 16 years old. This makes Zhang Guimei extremely sad.and regret.

She is determined to run a free high school for girls so that these girls in the mountains can have the opportunity to receive an education, go to college, get out of the mountains, and completely change their destiny.In 2008, the only all-free girls' high school in China was established. Under the difficult situation of no teachers, no students, no funds, and no experience, Zhang Guimei led the teachers and students of the girls' high school to complete the impossible task: making the learning foundation extremely backward.All female high school students have been admitted to university.

This girls' high school has allowed batches of girls to come out of the mountains and change their destiny.However, as the school develops, more and more poor girls from the mountains come to apply for the exam, and new problems and difficulties also arise...