Hueco Mundo was now, after all, Aizen's territory. Who knew whether spies of his were hidden somewhere in the seemingly deserted desert?
Tier Harribel rescuing Inoue Orihime from Nnoitra was perfectly reasonable, considering it had been Aizen's previous order.
But if Yoru Machi stepped in to help Tier Harribel, there would truly be no way to explain it afterward.
Tier Harribel was Espada No. 3, and unlike someone like Nirgel, who had been cast out, she was a current Espada.
Meanwhile, Yagami Yoru Castle was a captain of the Thirteen Court Guard Squads, as well as a Soul Reaper captain whom Aizen regarded with great interest and wariness.
If Aizen learned that Yoru Machi had saved Tier Harribel, what would he think?
In short, neither Yoru Machi nor Soi Fon had anything to gain from helping Tier Harribel themselves.
It was more appropriate for Nirgel to act instead. Besides, Nirgel and Nnoitra already had a grudge between them, so letting her handle this herself could be considered settling their old scores.
As for the final result, there was naturally no need to elaborate. Nnoitra's strength was indeed quite impressive.
But facing two No. 3s alone, he stood no chance whatsoever. His prized Steel Skin had multiple arms effortlessly severed by Tier Harribel's water blades.
When he used Cero, he was countered by Nirgel's special ability, Resonating Cero. In the end, Nirgel's Verdant Spear pierced through his head, and he died with his hatred unresolved!
After learning that Aizen had gone to the Human World, Yoru Machi felt there was no longer any need to remain in Hueco Mundo.
Although this time, Aizen had not taken the top three Espada with him to the Human World and had instead left them in Hueco Mundo.
In theory, with Aizen away, completely dismantling