Fairy Tail: The Celestial Priestess, Keeper of the Crystal Key (a Nalu Fanfiction)

Not much is known about Celestial Wizards or their powers. For Lucy Heartfilia, a celestial wizard at the infamous guild Fairy Tail, any bit if information on the rare magic is a great welcome. So when two strangers arrive at Magnolia claiming to know the great secrets of celestial magic Lucy is more than a little i...