You are a Diamond Dog, living in the richest part of Canterlot after suffering an incident at your old home, the Diamond Dog caverns. You don’t go out much (not that you can, given your situation) so you whittle away the days reading books from the Canterlot Library, learning Equestrian history and customs. One night, an unusual guest drops by, sparking the strangest offer - and with it, friendship - to grace Equestrian royalty.