User blog comment:Wrath022/Chapter 516: The Truth About Enchantment, Review/@comment-24784846-20161227035636/@comment-1776824-20161227041424

Convenience for the sake of convenience is an asspull. But, in an effort to address your other point, it is possible that Irene did those things, but then that would mean that: A) Irene couldn't lose; B) Wendy would be ejected from the series (in the event she is not latched onto another body); C) Wendy is stuck in Irene's body and Acnologia slays Irene-Wendy. That means those things cannot happen. For Irene to lose and Wendy to come back, they have to share a body.