When she was in middle school, Sunset Shimmer suffered from what is called 'Middle-second syndrome'.
It is a term used to describe young teens who have grandiose delusions, and in some cases, have convinces themselves that they have secret powers.
She used to call herself 'The God Princess of Flames', an immortal being capable of manipulate fire, alienating herself from her classmates.
Finding her past embarrassing, Sunset will try everything to start her high school journey quietly after moving out from her city.
But not everything went as planned when she meets Twilight Sparkle, a girl in her class suffering from the very same syndrome, who calls herself 'The God Princess of Night'.
Sunset will do everything in her power to avoid being around that girl, but she will find it to be a difficult task since this girl literally lives next door.

Art Cover by @IoNaomichi on Twitter.

Chunibyo re-written as Equestria Girls with my own changes and implementations.
This is not a serious story, just writing stuff for the fun of it, don't take it too seriously.

Day one, already featured ahah, thanks guys

Sunset's favorite alley cat has always been distant, only sometimes letting her get close enough to actually pet her. Not wanting an old friend to suffer out in a terrible storm, she's determined to show her a little kindness and a better life.

In an Equestria where Princess Luna was never possessed by the Nightmare the world thrived under both Celestia and Luna's rule. As such, the timeline diverted. After rigorous evaluations, Sunset Shimmer was chosen by Princess Celestia to be her student. Twilight Sparkle, having been glossed over by the Sun Princess, was selected by Princess Luna to be her pupil. One day, the Immortal Sisters send their protégés on a mission to a small town. When the villain named Starlight Glimmer appears all of their lives will be changed forever.

For a human that ended up in an alien world full of talking ponies, you've been living a surprisingly boring life. Sure, you have friends and go on adventures and stuff, but you don't really have a "purpose" per se. At least, you didn't until about a month ago, when a "heinous villain" that had been turned to stone went missing from Canterlot. Now, there's a washed-up queen crashing in your basement and stealing your love.

If only you could get her to admit that she doesn't actually steal it from you.

Sunset has decided to return home... wherever that may be.

The orphanage where she was left?

The castle where the princess had emotionally abandoned her?

She walks the foreign but familiar world, hoping to find something to make her life worthwhile.

Will she find somewhere, or someone, to call home?

[Cover by Mirrored Sea]

Nightmare Moon returns and is hit once again with the Elements of Harmony rendering her a mischievous little filly.
Much to Nightmare Moon’s annoyance, Anon thinks she's cute as all hell and is the only one willing to put up with her antics and evil, so Celestia tasks him with reforming the bundle of misery and mischief.

Cover Image is by EvetsSteve, may he rest in peace.
Chapters 1-21 were converted into prose from my greentext stories with the help of Nav/WhatMustIDo

Sunset Shimmer takes the mantle of her old master Sir Sunburst Starwatcher in a fit of desperation. Now, having had a taste of the glory and victory that has so long been out of reach, she throws herself into a delicate balance between fighting her way to riches and the noose that awaits if she is discovered.

And the lie she and her friends are trying to keep is getting harder and harder to maintain. Oh, and of course, there's the maiden fair who seems determined to get the truth of the matter.
*Based loosely on A Knight's Tale, you do not need to have seen the movie. This will have substantial differences.

Sunset didn't realize just how different other dimensions could be before going through the portal. Now she finds herself in a world where people never age or grow, they just attend high school forever. Whether she's entered a paradise or a nightmare remains to be seen.

There’s no end to the monsters that lurk in the dark.

Ghosts, werewolves, mad scientists, cultists, mutants, zombies, vampires, aliens and more lie in wait in the dark corners of Equestria, terrorizing the night. But the most infamous and dangerous of them all is the legendary witch Twilight Sparkle, with a five hundred million bit bounty on her head.

Seeking fame and fortune, Rainbow Dash sets out to defeat the legendary witch and collect the massive reward. The one thing she wasn't counting on was Twilight being less evil than she expected.

More stories set in this AU can be found here.

Cover art is a work in progress by Abode_WTF

Lemon Zest is pretty lucky for a pony who just got fried to death, as she scores the one in ten thousand chance a pony has at becoming a ghost. Knowing nothing about how to survive the afterlife, Zest seeks out the guidance of a far older and more experienced specter named Sugarcoat. Fittingly finding herself haunting an abandoned schoolhouse, Lemon Zest will need to learn the basics if she ever wants to be a pro-ghost.
Of course, tuition isn't entirely free, and Sugarcoat will expect Lemon Zest to help her recruit more ghosts to the lonely Shadowbolt Academy.

More stories set in this AU can be found here.