Needing advice on an important project, Twilight, Tempest, and their friends work to reopen the mirror portal, and rescue a former student of Celestia's... Sunset Shimmer.
Twilight thought she'd had enough excitement for one day after meeting her human counterpart. Or so she thought until she was met with the uncanny feeling that Pinkie Pie was acting, well, a bit too equestrian.
An accident with the Mirror Portal ends up with Twilight stuck as a small pony in the Equestra Girls' world. Her friends can't get over how cute she is.
In a former life, Vice-Principal Luna took the world by storm as the heavy metal queen known as Nightmare Moon! But what will happen when Rainbow Dash discovers her long-held secret?
As punishment for her crimes, the Elements have cursed Sunset Shimmer to do favors for anyone who asks. Lucky her. And then there's that other Twilight Sparkle she keeps running into...
Sometimes the girls at CHS forget Sunset is a pony, so when Rarity finds a rather odd bottle of shampoo in Sunset's bathroom, the confusion is understandable.
After an incident regarding Twilight's browser history, the true extent of Twilight's nerdiness is revealed. With her secret found out, Twilight Sparkle must introduce her friends to the wide, strange world of Live Action Role Playing Games.
Too much of a good thing is filling the human universe, and Sunset Shimmer is the only one who can solve the problem before it annihilates her new home.
Twilight is a human in a world of monsters, although she's never met one. So when she finds a vampire dying on her front lawn one day, she's not sure what she's found. A new friend? Or her demise...
As kids, Twilight and Sunset were best friends, but a tragic accident cut their friendship short. Years later, Twilight investigates the incidents at Canterlot High and comes face to face with what appears to be a literal ghost from her past.
Applejack asks Sunset if she ever misses an aspect of her home. Specifically, one aspect that can possibly be filled in a big way this side of the portal.
In the face of anon-a-miss, Sunsets runs away to Equestria to get a break and finds a welcome relief in her old life as a pony. Cultures clash as her CHS friends, determined to win her back, discover just how little they know about Sunset.
In preparing for the Fall Formal as Chairman of its planning committee, Sunset Shimmer meets her greatest opponent yet: Schadenfreude. Her co-chairman.
Sunset Shimmer has never needed anyone or anything - she had her magic, she had her ambition, and she had intellect. Others just stood in her way or held her down. So what do you do when your plans for world domination fall through?
A week after the Friendship Games, the Shadowbolts return to Canterlot High in the name of closure. However, they may get more of it than they planned.
Stranded in Equestria after Anon-A-Miss, Sunset is done with friendship. Unfortunately, the human Twilight's new device pulls not just energy from the portal, but a unicorn as well. Now the two must work together to get Sunset home.