After an unprovoked attack against the Crystal Empire, executed by Princess Twilight Sparkle and her Friendship kingdom, The Confederation of Equestria is once again embroiled in the Second Crystal War. This war has put the New Lunar Republic and Solar Empire in a very delicate position which is that both lands can’t support either side in this conflict without breaking their own Peace Treaty. This would result in the death of Celestia’s beloved foals; an outcome the two sisters could never stomach.

To safeguard Grand Solar Princess Blueberry Swirl Silverlight, her parents have recalled her from the Crystal Empire and placed her under the guardianship of her oldest sister Grand Princess of the Sun Aurora Silverlight. Now the two sisters must sits back and watch the conflict between the Friendship Kingdom and the Crystal Empire come to a conclusion. Both sisters know whoever wins this conflict will be seriously weakened and be unable to maintain harmony in their land; a result that Princess Circe Static, the ruler of the kingdom of Dark Star, wants.