It felt great.
The hollow had managed to combine with both Zangetsu and his king. And it felt better than anything prior. He and Ichigo slashed at Aizen again, and he felt full pride in their combined strength.
The battle was almost too easy, with Urahara's help, Aizen was toast within minutes. Of course there was one thing that made the battle quite disappointing...
The hollow would be lost forever.
Sure it was a kamikaze and he'd never exist again, but at least he'd go out with a bang. And at least he went out as one whole being, undivided deep in his soul.
As Mugetsu ended in tandem with Aizen, The hollow felt everything go black. This was it. Everything he had ever had was now nothing...
