Another beautiful Christmas is coming. Barbie (voiced by Kelly Sheridan) is about to attend the Christmas charity ball with her sister Kelly (Amelia Henderson), but Kelly lost her temper. So, with the help of snowballs, Barbie told her sister a story that happened in the Victorian era. At that time, there was a beautiful and proud opera named Itian Starling (voiced by Morwenna Banks). She thought highly of herself, hated Christmas and sang carols during the holidays. The troupe staff get along well with the actors, but everyone is afraid of being bitter and arrogant. Everyone was going to celebrate Christmas Eve, but Yi Tian asked everyone to stay and rehearse. No one could persuade her to change her mind, and the superior queen made everyone unhappy with her arrogance. At this time, an accident happened to Yi Tian, which changed her cold soul a little.