Prologue

Loyalty. It's funny how that word has no meaning to hollows yet, in some twisted, satiric way it has become a word that holds some true, even though tainted, meaning to us. Us, Arrancar, who supposedly near in certain qualities to humans.

To us, beings with meaningless existences, created and used by and for the greed and the arrogance of one man, stronger than any shinigami the Hueco Mundo has ever laid eyes upon. A man able to sow fear in the very core of the most powerful beings of this world. His name, Souzke Aizen.

He arrived in the Hueco Mundo, taking king Barrigan's self-proclaimed throne and offering strong hollows the power to become stronger, obtaining powers similar to those of shinigami, using the hokyoku to shatter the boundary between shinigami and hollows. These new beings, us, Arrancar, were given numbers and used as his army, the Numeros. Out of all the Arrancar, the ten strongest were chosen by Aizen and ranked from cero to nine, cero being the strongest. He called this division the Espada. And, with the Espada, the Fracción were born: The Espada's personal soldiers. Espada were allowed to have as many Fracción as they liked. My master had 6. 6 Fracción, like the 6 marked on his back.

Like the rest of the Fracción, I owed complete and absolute loyalty to my master. The one who had saved my life. The one who had acknowledged me as someone worth keeping around, as someone worth-while. And for this matter, he had argued with the new lord of the Hueco Mundo himself, a man which I had quickly learnt to despise.

I opened my eyes and focused on the big, white doors which I knew would open any minute. And as soon as they did, I remembered my train of thought.

Loyalty. You could say all my story revolves around that word. Around it's meaning...around it's effect on one's life...around the choices one makes due to it...and around how far the feeling can drive you. How far it can push you. How much you're willing to sacrifice in it's name.