By chance, college girl Zheng Qingyuan learned that the school would hold a summer teaching activity in the countryside. With the support of his senior Ming Heng, Qingyuan decided to do his best to help children in impoverished mountainous areas.
However, after arriving in Qingliu Village, Qingyuan discovered that the living conditions here were much worse than imagined. Can Qingyuan persevere for her faith, and what story will happen to her...