Roads Untraveled

After purchasing a new Celestial Key, Lucy is asked to go on a mission that requires her to leave Fairy Tail behind and help defend a world that she's not a part of. If she chooses not to, Earthland will be in danger. It is up to her to work side-by-side with new comrades to save the people she has come to call her family, as well as the rest of her world. Semi-AU, eventual GraLu