User blog comment:Xilinoc/Ch. 668 - BIGGER,FASTER,STRONGER/@comment-1210805-20160401074504

I don't know how anyone could still be in denial about Yachiru being Nozarashi, it's arguably one of the most foreshadowed elements in the series. Having recently gone back over all of the series, right up to Fake Karakura, her actions and reactions during Kenpachi's battles shows a deep connection to his words, actions and sword when clashing with an opponent. Their powers have been shown to manifest in similar ways, the very nature of their meeting suggests an unrecognized spirit manifestation, and her own Shikai manifesting in a manner that is completely unheard of all suggests that she is very different to everyone else. Her disappearance coinciding with him finally releasing his Zanpakuto was what really did it for me.

I'm not surprised or put off by Kenpachi having a Bankai, he's one of the war potentials, being put right alongside powerhouses like Ichigo and Aizen, and specifically for his battle strength. Considering the offscreen curbstomping he took during the Quincy's initial attack, a major power up is hardly surprising.

On a side note, I wonder if Yachiru never being called by her real name is the reason why she always uses nicknames for everyone else.