After the Battle of the Bands, Sunset Shimmer is still having trouble fitting in at CHS. People still stare at her, her efforts to make new friends are not very successful and to make it all worse, she has been having increasingly annoying headaches.
As she helps Sonata Dusk set up a concert, she meets an odd woman, that has a strange interest in Sunset. What does she want? Why does Sunset feel like there's something behind her mocking grin?