*Ahem*
The thing I'm impressed with the Queen's Blade figures aside from all of them be cast off, I'm 99% sure that you don't have to pull their bodies apart to get the clothes off. Then again, I've never seen a character with removable pants which Sheryl are wearing...?
On a closer inspection, the prototype in the first page seems like the clothes aren't removable, no visible gaps(there are seam lines though).