Future universe. "Sister" Princesses Sunset Shimmer and Twilight Sparkle mourned the loss of Equestria's favorite Princesses - The royal natural-born alicorn sisters Celestia and Luna. In an attempt to win them back, they resurrect them - as fillies.
Who is this Anon a miss? During her reign, Sunset Shimmer has been discriminated again and CHS thinks she's responsible. Her world shattered when her friends left her.