User blog comment:Xilinoc/Ch. 579 - THE UNDEAD 6/@comment-2211792-20140508131732/@comment-11051098-20140508142621

What I understood was that Gremmy's body was unable to handle Kenpachi's physical power. Or the combination of his insane reiatsu + physical power.

It is indeed strange that Yachiru's clothes seemed to be left behind. I wonder what happened. I hope we'll find out next week.