User blog comment:Xilinoc/Ch. 540 - The Sword Five/@comment-7092747-20130605175034

Yeah, you pretty much summed it up Xil, was thinking at first "Zangetsu is a Hollow? Well let's see how this goes", but of course the super curve ball of "ha ha! No, Zangetsu is Yhwach!" truly was one of the most surprising things Kubo has done in some time.

Personally I think Nimaiya's "transformation" to a far more serious individual goes to show just why he truly deserves his place amongst the Royal Guard and goes to show how he truly is an unpredictable man.