A young girl, having been robbed of her childhood and very life by illness finds herself given a second chance in a strange world and with an even stranger body. With a new life, family, and even a brother, she tries to cope with the bizarre world she's found herself in while also trying to embrace her role and become worthy of the gift she has been given.
Being a princess can be hard however, even if it's only an honorary title, especially when you're the twin sister of Prince Blueblood.

Warning, very slow burn.

The journey to be the best. Many have taken this road and many have fallen to the wayside, for this is a road that few can conquer. But it is the road that a certain warrior takes, no matter where it leads him.

And now Ryu finds himself in the land of Equestria, a strange land for one such as himself. But here he shall seek to improve himself while fighting the best ponies in the land to reach the pinnacle of fighting. For Diamond Tiara he is a master who can help her overcome her foes and herself. For Rainbow Dash he is a rival to defeat so she can prove that she is a great fighter. And for Zecora he is a student that she hopes to keep on the right path.

But the ponies must be careful of this noble soul, despite his calm and kind demeanor. For if pushed too far they might see that even the most kindhearted of fighters...can house deep within a raging demon.

Uncle lives a very fulfilling life at his antique shop. It's peaceful and quiet for the most part, just how he likes it. Of course, he's a skilled chi wizard, so he knows better than to actually let the universe know that he's content. So he complains.

A lot.

Then one day, a basket containing three infant magical ponies arrives, and his peaceful life goes out the window...to be replaced with, perhaps, something a little more than contentment.

The universe, apparently, is smarter than he gave it credit for, because now he has "Three More Things!" to complain about to hide just how much they mean to him.

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Part of the PWNY-verse.

First chapters take place approximately 10 years before the events of the first episode of the show.

Edit: Cover Art put together by Shadow Bolt
Edit 2: New Cover Art by Swan Song. Link to his page in image source.
Edit 3: Level Dasher commissioned an image of the CMC with their new Cutie Marks from Katakiuchi4U over on Deviantart. Here's the pic!

After years of shame and ridicule, archaeologist and explorer Lyra Heartstrings stumbles across a discovery that validates all her theories and ideas in one fell swoop. Along with her best friend, Bon Bon, and her old classmate Cadance, they find themselves faced with a mystery and marvel that may change everything.

Following the next greatest lead found in the database of an ancient race, another international team is formed. Led by Doctors Carter and Jackson, they strike out to explore another network of Stargates discovered in a galaxy on the edge of the local cluster. In the process, their findings will cause them to question much of what they thought they knew.

The adventures continue and unlikely allies will face dangers new and old as the Legacy of the Ancients continue to unravel in the latest chapter of the universe.

[Co-written by Thunderclap and Shagohad12] Formerly co-written by Grey Cait. [Edited by: Lithl and m2pt5][Cover art: 1, 2 modified + vectors]
Now with a Russian reading by SviMik

As the Princess of Friendship, the only thing Twilight Sparkle loves as much as books, reading, books, making new friends, books, spending time with her friends, and...books...

...is spreading the magic of friendship. And one easy way to do that is to introduce your friends to each other.

In need of a weekend away from the castle before heading out to the Crystal Empire to spend time with her family, Twilight decides to take a little vacation to the human world...and brings three of her newest friends along.

After all, if Princess Ember, Moondancer, and Starlight Glimmer are all Twilight's friends, surely they'll get along well with each other and with Sunset Shimmer!

Right?

(Cover compiled from various source vectors.)