By order of Celestia Twilight Sparkle princess of friendship attempts to create a reformation formula that can change the nature of a pony, imagine a world where evil doesn't exist.

You might say that's a great idea you be right if you were one of those ends justify the means type. Fortunately or unfortunately the princess has chosen one ingredient to the added to this formula.

The dark water and Sweetie Belle was unlucky enough to be exposed to a messed batch of Twilight's formula. Her thoughts, Ideas, Sweetie Belles Id now center stage.
The question isn't can she be saved but, does she want to be.