Sunset Shimmer, the Princess of Valor, is the happiest Sunset in all of the multiverse; A fact that will be painfully obvious to her, when she's cursed to travel the multiverse meeting other failed versions of herself.
After losing her family in a fire, Sunset wanders the streets of Canterlot, doing what she has to do to survive. She finds a fellow filly on the street and the two work survive together.
Alone on Valentine's Day, Sunset is refusing to admit to herself she's upset about her relationship status. Trixie is a bit more bitter about her own lack of a relationship.
Sunset as the rest of Equestria is looking forward to the summer sun celebration until the main attraction goes missing and Sunset is determined to get her back.
When she was in middle school, Sunset Shimmer suffered from what is called 'Middle-second syndrome'. Finding her past embarrassing, Sunset will try everything to start her high school journey quietly after moving out from her city.
Sibling diplomats Sunset and Sunburst, travel to the Changeling Kingdom for the end-year holiday. They each bring their secretary, accidentally gifting romance to one other.