User blog comment:Xilinoc/Ch. 579 - THE UNDEAD 6/@comment-6916556-20140507185035/@comment-6916556-20140510184429

I understand that you guys think this is illogical, but I am struggling to understand why Yachiru would leave her clothes behind, or an enemy would remove her clothes.

Nobody could sense her Reiatsu either. Maybe it is just one of the girls's abilities, but Kenpachi looked genuinely worried.