Starlight Glimmer ends up in another world. Only it's not her body.
Pulled from a battle with Twilight for the fate of Equestria, Starlight is summoned to another world through the use of a sacrificial ritual gone wrong. Now she is trapped in the body of a young heiress. Ellen Dey Hunt was the only direct descendant of a noble bloodline, in a family of nine siblings, each with their own mother but all having the same father.
Only instead of the royal treatment, Starlight learns this world plays by a different philosophy: The strong survive and the weak are cast aside. And poor Ellen was the weakest of her family. But Starlight isn't having it. She volunteers to help Ellen in her endeavors. She has her memories and her knowledge of magic, but can she really change the fate of the one who summoned her?