So what if Anon-A-Miss destroyed every effort she made at CHS and turned her into a social outcast again? She has one friend left to turn to. Sunset Shimmer is gonna be fine. Really.

When demons begin to manifest all over Canterlot in search of Equestrian magic, Sunset Shimmer decides to use the demonic power left in her since the Fall Formal to return to her original passion: monster slaying.