It was a duel, a battle between two powers; sisters. One ignored and practically rejected from society, the other adored by all her subjects. This is the duel between Nightmare Moon and Princess Celestia.

As the battle rages on though and Celestia prepares to use the Elements of Harmony she hesitates. And for a brief moment she recalls how her actions turned her sister into this being, and how she had played a roll into turning Luna into that beast. That hesitation, that slip up is where Nightmare Moon takes advantage and overcomes Celestia's power.

And just as it looks like everything is over and Nightmare Moon has won, a human appears. And that human decides to challenge her to a duel.

A young Netero has entered the stage.