Sunset Shimmer gets a surprise visit from Twilight Sparkle, but Twilight gives her a even more surprising news, she has a chance to study under a Princess again......but its not Princess Celestia.
After being abandoned by her sisters and both physically and emotionlly tormented by the students of CHS, Sonata has no place to go until someone was willing to help her out.
Trixie wants to challenge Twilight one more duel, to prove once and for all, who's better at magic. Twilight doesn't want to fight Trixie a third time, so she instead wants to get to the root of the problem, the reasoning behind Trixie's ambitions.
It have been nearly two weeks since Sunset Shimmer became Princess Luna student. Now Sunset must face herself and the darkness within her with Princess Luna's help.