Desc: Agreement: Directed by Flint-lee, Lin Sheng. With Yi Qin, Shulin Yang, Hui Yu, Xinghuo Zhong. The film is based on the true story: Shanghai resident Xu Hongwei (Yu Hui) is an ordinary hotel attendant, the monthly salary is very little. But for eight years, she helped poor students of Hani nationality in Yunnan, Longga (Pu Wei) and Danyi (Longli), to go to school.