Humanity, a species long thought exterminated by Celestia during her early reign, and now regarded as a terrifying legend. However, this changes when one reappears near the Everfree forest after a sting of dissapearances, all vastly unpleasant. This human, however, is vastly unlike the creatures of lore, being much larger and uncivilized than humans of legend. Also, unlike known humans, this one turns into a great, reptilian beast when angered, among other abilities. Luna, never having never seen a human before, wants to civilize it, and possibly use it as a secret weapon. Celestia, having supposedly eliminated humanity in the first place, wants it gone. But what say does the poor human get in this? None, as he can't speak Equestrian. That's not going to stop him from having an opinion, though.
(please read the author's notes when you can, they are usually important.)