Equestria's Guard. A proud, elite Defense Force that traces its roots all the way back to the Lunar Rebellion. Members of all walks of life serve in Equestria's defense. Their pasts do not matter, but those long since passed do not heed these same rules when they haunt the minds of those who had been left behind.
The Canterlot Courts. A cutthroat collective of the most powerful Equines plus one, in Equestria. Some seek to further their goals, others still remember why they fight. The "Plus One" realizes both.
An Ambassador and a Guard. In her eyes, she was, is and forever shall be a simple Guard. In his eyes, a chance to fight against that of which poisoned his home.
Both wear masks to achieve their wishes because the pain underneath, the pain that they cannot bare themselves, is still raw and sharp. Both will come to find their absolution in each other.
What's discord's role in this story? Does he get shipped with somepony?
5675296
No shipping but he does play a pretty important role in the story, giving back story, give context to what happened before the story starts and at a few points, help move things forward.
You're real fucking lazy, you know that?
Anyways, I'm gonna track this and try to give you some feedback.
5675943
Any sort of feedback I'd appreciate, but as I said, his name isn't really Anonymous and its something that is going to be addressed by the second or third chapter. Its not something I did out of laziness, it was an action chosen by a character who immediately realized that he was in a world where names could have had an immense amount of power.
And as said in the description and by Celestia herself, it was a mask he came to wear for so long that he seems to have mistaken it for himself.