The Sorceress From the Forest (Attack On Titan/ Shingeki no Kyojin Fanfic)

Everyone knows the names and stories of the heroes of humanity, like Erwin Smith, Levi, Eren Jaeger, Mikasa Ackerman, and the like. However, there's one person that not everyone may know or remember: the greatest warrior of them all, Roe Cyprian.
Born in the forests of a small district called Cyprus, Roe, after witnessing the death of her beloved mentor at the hands of a mysterious golden Titan, swears revenge upon the giant monstrosities. Aided by strange new Titan powers gained from an experiment that genetically modified her body, Roe blazes through the ranks of the military until she becomes a living legend within the walls, and becomes a shining ray of hope for humanity.
However, as Roe continues her fight against the Titans, unknown forces are at work, doing whatever they can to get rid of her, who they believe poses the biggest threat against their plans of eliminating humanity. And as Roe is soon to find out, sometimes your enemy turns out to be your closest friend.
Blades will clash against Titans. Blood will be shed. Deaths will be mourned. And the dead will rise. Join Roe as she struggles to protect the humans she has always loved and cherished from the very monsters who killed her own family years and years ago, and find out for yourself the horrible truths that she uncovers, stretching all the way back to the beginning of time and the very beginnings of humanity.