It was shortlisted for the New Generation Competition Unit of the 68th Berlin International Film Festival. The film was written and directed by La Huajia, a graduate of Beijing Film Academy, supervised by the famous director Wanma Caidan, photographed by the famous photographer Lv Songye, and produced by Chen Zhongguo of Qingying Studio and Meng Zhong of the Department of Literature. It is adapted from the short story of the same name by Cailang Dongzhu, telling the story of Wangza, a little boy living in the agricultural area of Tibet who has always wanted to have a pair of beautiful rain boots. However, after he got a pair of rain boots, it never rained. He hoped that it would rain heavily so that he could wear the rain boots on rainy days...