Celestia is in despair. The future for her, her sister Luna, and the future of Equestria does not look bright. Prince Blueblood, always on the hunt to expand his power, has dug up an ancient law that dictates that not only should Princess Celestia take on the title and role of Queen of Equestria, she must either choose or produce an heir within a 6 month period of time or be forced to choose the most senior member of the royal family to succeed her. This member would be Blueblood as Princess Luna can only cover the duties of the moon. To Celestia all seems lost.
Until one night, she comes across a strange child in the Canterlot Gardens. The child is a human, all alone with no family to be heard of in Equestria.
Celestia, out of the kindness of her heart chooses to adopt the child as her own son and declares him her heir to the throne.
Now the young human must face the challenges of being the heir to an entire country while under the scrutiny of ponies like Blueblood and the care of ponies like his mother.