A thousand years is a long time to neglect one's heart.

A long time ago, a young princess opened her heart to a pony she thought she loved, and in doing so, she doomed an empire and forever changed her kingdom. Now a thousand years later, Celestia finds herself haunted by the memories of her past failures as she faces an uncertain future. As she struggles to keep her guilt from consuming, she finds support in the most unexpected of ponies.

But can a heart that has remained closed for a thousand years be reopened, or is she destined to repeat the mistakes of the past and doom a kingdom once more?