What is the main problem in the story where the mountain meets the moon?

The main character of the novel is a little girl who lives in a poor village with her parents. While her life is tough, her only enjoyments are the stories told by her father. The village is cursed because it lies near a God and the main character looks for a way to bring prosperity to the village. The little girl begins her journey, freeing a dragon and becoming his companion. The two then start their journey, protecting one another and becoming closer as the days pass by.