Black Night, White Butterfly-A Bleach Fanfiction

Within the Espada and Quincy arcs, a new addition to the ever-twisting story of Bleach arrives; Khristalyn Dixon, a 15 year old girl with a rough life-but, it's about to get much, much more complex...
Before she realizes it, she's thrown straight into the two brewing wars, but is still tightly tethered-tighter than she knows-to a certain outside force, someone who has been on Soul Society's side before as an ally, and also as an enemy, one who know just how to bend things to his favor...
Aizen Sôsuke.
To gain leverage over Soul Society, he recruits the specially-gifted Khris within his forces, easily subjugating her allegance by promising to bring her longlost sister back to her-that is, if she does his bidding.
All runs smoothly, until she finds out her superior's true intent of becoming Soul King.
It's evident she must prevent Aizen's victory at all costs, so she devises a plan to destroy the very Hogyoku.
Then come the dreams.
The dreams that have her questioning her past, if she's even human...
But, nothing, not even that will keep her from destroying that evil orb-not even Aizen himself.
Yet... the two share much more of a bond than just superior and subordinate...
Khris's roots run much deeper in the Spirit Realms than she realizes.