A Magician At Sea (One Piece Fanfic)

(L/N) (Y/N) is a princess from the (K/N) Kingdom. At only the age of 6, her kingdom was attacked by creatures called nightmares, those creatures we're searching for (Y/N) because she was the future vessel of the Heart of Magic. She escaped thanks to her older Brother Mitsuki and settled on an island that's mostly habituated by Pirates. (This starts at Sky Island) At a certain bar, a man with a Straw hat caught your interest and you decided to see what was going on. What will happen?