Did You Forget Me? (Fairytail Fan fic)

(F/n) has lost everything her real family and her new one. She only has a exceed named Shiro. (f/n) doesn't remember a lot about her past they start to wander Trying to find clues. She remember's her sister's because of the special locket she has. (f/n) and Shiro are very strong and can finish any job they get the names of the Dragon empress and Shape Shifter. But what if (f/n) see's someone familiar at the grand magic games......