Twilight went alone to the Crystal Empire at the request of Princess Celestia, but unfortunately, she failed to save the city from King Sombra, and now she is trapped by King Sombra's trap and needs to find a way out.
Sombra has now taken over the world! All his enemies have been defeated, and all the Equine race are now in chains. But on this moment of triumph, a single voice of laughter broke out. Now that traitor is asking him one question: "Now what?"