When you were a colt where you used to live in Ponyville, in that time you became friends with the Cutie Mark Crusaders and all of you had a blast. But after a couple of years you had to move away, during that time away from Ponyville there was a incident that wiped most of your memories. But after having to many fights with your family it was about time you got away so thanks to a friend, you were able to finally leave.