Disclaimer: I do not own Bleach

What is a Hollow? It is a soul that died with regret, then later consumed with madness. At least that's what they told him. But in his case, however, it is a different story. Since he first entered his inner world, in attempt to learn his zanpakutou's name, he noticed a small dot of negative power. He ignored it, considering it unimportant. As the years went by, the dot became a bolt; the bolt grew even larger taking a shape of its owner. Now, it is as if he is looking at the inverted image of himself. Where he has steel grey eyes, long black hair, face of indifference and is fully clothed in his black shinigami clothes and white haori, his hollow has burning red eyes, short white hair, that ill grin over it's face, and the top of his loosely white robes open, exposing it's chest and the hole where it's heart should have been.
It has no open intentions of taking over him, but its way is subtle. And while the shinigami has a short temper, but of course, doesn't let anyone know that, the demon is a most patient predator. Whatever he does, wherever he goes, whatever decision he makes, it is whispering in his ear, tempting him in the every step he makes. It made him close; afraid he might hurt someone by just existing.

"Don't forget that I'm here, Byakuya Kuchiki." The hollow speaks in his metallic voice, eyes flickering with amusement. "I will destroy everything you hold dear. Slowly. Painfully. I will make sure your heart finally scatters, like your zanpakutou, into thousand peaces before I take over you."

"How do you expect to break something that's already broken?" Asks a noble, his voice even, not even bothering to put some emotions in it. Not receiving an answer, he turns and leaves, while his hollow smiles menacingly behind his back.

Byakuya feels great deal of relief when Gin's blade pierces through his chest instead of Rukia's. However, it ends quickly, as he realizes the blow was fatal, and that it's not his or Senbonzakura's willpower that keeps him alive. He also realizes that, in his closing and not wanting to hurt Rukia, he hurt her more that he could imagine. His hollow's laughter rings in his ears, and in that moment he sees the truth that was in front of his eyes all along.