For any age I would say, the story is about Luna being bored, having nothing to do and being alone. Until she finds her old book of her constellations, then she decides to make new constellations and show the world of what beauty the night can actually have using her newly designed constellations to light up the dark sky! The story also includes Celestia, the main six and Nightmare Moon. There will be no gore or anything over 18's, since im not 18+ xD