Before befriending his best friends like Silver Arrow and Twilight and falling in love, Emerald learned to be a pony in the Crystal Empire. Not even the Princes of Love and her husband were initially sure about this odd pony from beyond the mirror.

After a love filled wish, A young man wakes up on the chamber of the Crystal Mirror before finding himself as a stallion in Equestria. Befriended by farm mare and her friends, he unwittingly finds himself aiding in fighting an ancient northern evil.