User blog comment:Wrath022/Chapter 517: Wendy Belserion, Review/@comment-25111584-20170115052308/@comment-25111584-20170115195158

Except Irene was energetically mutilating the body when she was extracted from it, while Wendy fainted immediately after regaining her body, despite it not having been harmed... I'd say (and believe) mental fatigue is the cause, but of course I can't prove it considering even the basic deduction above is not something I'd try to apply to FT nowadays. .-.

inb4 Irene was high on an adrenaline rush (if anybody other than me actually is foolish enough to think that far): Then that would have carried over to Wendy and kept her from fainting too. The rush doesn't dissipate instantly, just extremely quickly...

Plus, Irene's attitude towards Wendy's wounds and inflicting harm on herself makes it seem as if the physical and mental conditions are not dependent on each other, but that could not only be bad tl, but is also most definitely speculation, so would rather not go there. ._./