Having fought with her mom, Usagi runs away from home, and ends up taking shelter at Rei's Hikawa Shrine. There a girl name Erika is working on an animated picture show for the children. The story of the picture show is ""Kaguya Hime."" Erika believes the mother she had lost has returned to the moon. Rei, who just like Erika lost her mother, feels as though she is meeting a version of her child self. Usagi, learning this fact for the first time, reflects upon her own complaints about her mother. As these events are occurring, accidents involving people and places which have to do with the word ""Princess"" are beginning to happen. The princess of a certain country suddenly collapses, somewhere else a picture book of Snow White catches on fire. And so finally Erica, who thinks that she is like Kaguya hime, gets in trouble as well!