There lived in Canterlot a Prodigy Unicorn, who was the personal student of Princess Celestia; her name, Sunset Shimmer.
She was arrogant and thought little of those she saw beneath her, testing Celestia's limits. Now, with the final limit broken when she snuck into the forbidden sector of the Canterlot Library, she was to be expelled. In her attempt to avoid capture, she fled through the magic mirror just as it was about to seal again for another 30 Moons.
Principle Celestia and Vice-Principle Luna were ready to call it quit for the night at the Canterlot High School. (CHS) On their way out, they find a young girl passed out on the front sidewalk of the statue.
Rushing over to help the young girl, scattering around her were items that question her origin; their school is about to be dragged into a world of craziness and some wacky shenanigan.
Further Details
Others: There are other characters who will be focus in the story (Too many to add) so I will mention them here. Chrysalis, Discord, Vice-Principal Luna, Dean Cadance, Twilight Velvet, Night Light, Shining Armor, (Sci)Twilight Sparkle, The Dazzlings, and 'He Who Should Not Be Named' . . . *Cough* Flash Sentry *Cough*
Changes may be added to tags in later time (I will try to keep Rating down to Everyone, just mild use of blood and fighting. I won't go too dark in them.)
I may also throw in some Romance in later chapters.