This is going to be a Fairy Tail/ Harry Potter crossover, being GaLe romance. I don't know who made the picture, but credit goes all to them.

Captain Gajeel Redfox is one of the toughest pirates across the seven seas, a ruthless treasure hunter who was surrounded by the sea for as long as he can remember. When a shadow from the past that he can't remember emerges, will the girl before him make the already stormy seas unbearable?