"The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently." -Friedrich Nietzsche

Over 1,000 years ago, Luna and Celestia, the two regal pony sisters, were just fools to love.....at least, they believed it was love.
Celestia spent all of her time with the draconequus, Discord, while Luna spent all of her time with Sombra, the powerful king of the North. Both of them believed it was love, and neither expected it was betrayal.
Soon, both Celestia and Luna were puppets of evil. Though they didn't realize it, they were slowly being turned against each other, and their harmonious bond was being broken by the ones they believed understood them most.