(Takes place within the universe of My Little Pony, Friendship is Magic; Stallion Edition, set before Chapter 217.)

Prince Shining Armor's coronation is drawing near. But recent events have him thinking back to a time shortly after he first gained his wings and became an alicorn.

Taking part in a royal summit held at the Crystal Empire, Shining Armor struggles to adapt to his new alicorn status. But that night a new problem presents itself when an unexpected intruder manages to steal his crown and get away.

Forced to pursue the thief through a magical mirror, Shining finds himself in a world unlike any he has seen before. A world populated by creatures called humans. And if he wants to gets his crown back, he'll have to deal with a particularly nasty human called Sunset Shimmer, the very thief he's sworn to apprehend.