కీవర్డ్ Substitute Teacher

When Zhang Nan was a child, his mother was imprisoned because she had fought with the villagers over irrigation water. From then on, Zhang Nan was determined to leave and take root in the big city. Just when he has graduated with a master's degree, his mother was diagnosed with cancer. Zhang Nan is forced to abandon a promising future in Shanghai and returned to his native village of Baiguo to serve as the team leader. Zhang Nan takes on three years of poverty alleviation work. Through his journey, he manages to untangle the knots from his childhood and also comes to understand the true meaning of his work. Along with his girlfriend, they invest their time and effort to focus on helping the countryside.