The Canterlot High girls never took Sunset in. The students despise her. The only one who helps is her knife, decorating her skin. Maybe she'll raise the knife a little higher...or rub out her life with an eraser. After all she's a monster.
When Sunset Shimmer was turned back by the Elements of Harmony, some of her demonic power remained. Now, she has to deal with it before it consumes her.
Sunset Shimmer is having a bad night. She turned into a demon, was forcefully turned back, and now has to deal with all the people she's wronged in the past. As luck would have it, it seems her demon self isn't done with her, either.
When the portal to Equestria is destroyed, Sunset Shimmer's planeswalker spark awakens in a moment of despair. Upon arriving in a world where souls are transformed by nightfall, the very foundation of Sunset's identity is broken in two.
