Luna

Luna is one of the main character in the book.

Luna was the princess and the original girl who changed to Night Mare Moon. She first appeared in chapter 1 of the story. She was the sister of Moonlight and the adopt sister of Celestia. She have light blue hair whenshe was young.

History
Luna was the bigger sister of Moonlight. She and Moonlight were best friend till she left her mother and got adopted by Sunlit. She missed her sister so much that every night she cried... Then, a mysterious person had made her forget her own sister.