In a fallen world, alicorns do battle as ponies cower in fear and hide from their insane overlords. Gods and monsters roam the world, and two alicorns must face each other to save themselves and their souls.
For the past year, the four rulers have gathered in the unassuming town of Ponyville for meetings of the highest secrecy and order. If the ponies of Equestria knew what really happened behind these doors, they would probably switch to democracy.
A scroll summons Trixie for a night with the Princess of Equestria. It would help Trixie though, if she knew which of the possible princesses actually sent it.
As a princess, Cadence is used to the slog that accompanies any fundraiser, though it quickly becomes clear that Twilight doesn't have the same issues. That doesn't mean that Cadence can't help in her own way however.