1. Because it is very mysterious and interesting.
2. Sisters Anna and Elsa, a boy, snowman Olove and the prince.
3.This cartoon about friendship and love, about the importance of family in life.
4.When Elsa learned about the misfortune with Anna, she tried to save her. After a long period of divorce, her sister saw her cold heart, Elsa, thawing back into the kingdom's spring. I liked this episode by revealing the theme of love and friendship saving everything!