Everypony knows that Princess Cadance is the sole ruler of the Crystal Empire, right? With her husband Shining Armor, she works as hard as she could to keep her subjects happy and safe.

But how did the Crystal Empire really begin?

That part of the story will come later. What is being focused on now is how their sole rulers, Princesses Sterling, Gold Lily, and Crystal Prism came to be, grew up, and why they were so different from everypony else around them...