The young Twilight, Trixie, and Sunset are taught by Princess Luna in her castle. Exposing the fillies to everything that comes with being the Princess of Equestria.
Diamond Tiara runs away from home without her tiara, and moves into Carousel Boutique, much to Rarity and Sweetie Belle's surprise. Later, when Diamond is kidnapped by the diamond dogs, an unexpected pony comes to her rescue.
Takes place after "Crusaders of The Lost Mark" but before "The Mane Attraction". When Filthy Rich gets called out of town, Scootaloo agrees to let Diamond Tiara come to her home for a sleepover. The two soon learn just how much they have in common.
Taking place during and after the events of "Legend of Everfree", the girls from Crystal Prep become aware of magical oddities taking place at and near their school.