Two twin brothers named Hikaru and Kage made the biggest mistake of purchasing the Arcle and N-Daguva-Zeba's Gurongi Buckle. As a result, they were flung into the most chaotic times of Equestrian history. After helping the Sirens escape and as punishment, Starswirl the Bearded sealed them away in separate coffins into the dungeons of the Castle of the Royal Sisters in a state of suspension and hibernation.

A thousand years later, they awaken from Discord's release of chaos into the world (that and they were released by the Master of Chaos himself). Now, they must protect Equestria and hopefully lessen the damage that is happening to Equestria to make it as peaceful as possible.