Somepony had to create the Elements of Harmony. In the dark days of Discord's rule, Celestia called upon Vulcan, a minotaur blacksmith of legendary renown, to put harmony on his forge and hammer out a weapon with which she could defeat Discord. After Discord had been defeated, Celestia discovers he has also created a set of elements that oppose the Elements of Harmony. Vulcan is branded a traitor and is doomed to be imprisoned far, far away from Equestria. He has only one final request: to explain to the Princess why he created what he calls the True Elements of Harmony.