It is Yoon's birthday and all she wants is a jump rope so she can play with the other girls in the school yard. Instead, Yoon's mother gives her a Korean storybook about a silly girl who is tricked by a tiger. Yoon also receives a jade bracelet that once belonged to her grandmother. The next day at school, a girl offers to teach Yoon how to jump rope, but for a price: she wants to borrow the jade bracelet. When Yoon tries to get her bracelet back,...