She had been alone for many years without a place to call her own. Luckily she found a place to call home, and even though it wasn't perfect she would do everything she could to make it so. Though she had been warned to avoid these lands
Outliving your friends is something that is hard to get over. When a young kitsune realizes that she has a long time to live and is now without her friends she heads out to find the one place she may be able to belong.
500 years is a long time to be gone. How will Equestria react to the not only the return of an old friend, but a race that had been lost for millennia.