fairytail 4th dragon slayer

Don't read please spare yourself! This is the author 4 years later, cringe so bad my 'weaboo' stage technically. I'm rewriting it under the same name

One day while Lucy was taking her normal walks she saw a girl with icy blue hair blue with a black hoddie and a pair of short cut up jeans on holding a map with it marked fairy tail. With her an dark blue exceed with black paws and blue luggage. Who is this mysterious girl who might want to join fairytail and should fairytail trust her?