@Quirriff
She indeed more or less was. I'm guessing that this is just political/religious bullshit disguised as "retraining the hero".
Seriously though, why does the Demon Lord need to jump through all of these hoops? It isn't like his side is doing the same to various humans. For the most part, asside from making her crown princess as a formality, the demon side has been fairly hands off, or only consult with Demon Lord, and not his extended family. But now not only the hero, but the rest of her family must be "retrained"?
IMO, it sounds to me like "someone" comes from an upbringing built upon an anti-demon mentality, and is now struggling to accept the recent social/political changes, and her "friend's" new family. And instead is trying to revert it back to how it was before, if not into a better, more favorable standpoint.
I mean just look at her arguments. Nothing she has stated has shown influence from demons, besides becoming crown princess, to which she also admitted to agreeing with in the first place as a necessary evil. She criticizes her lifestyle and them points out how she tries to excuse it or weasel her way out of the criticism. I'm sorry, who the fuck asked her for her opinion? Friends don't just show up unannounced, point out all of your flaws that they personally disagree with, and then force you to attend a retraining to make themselves feel better.
Even her opening criticism was that she was wearing pajamas later on into the day, on her day off. Really? Can't a person just relax how they want to? Or is that too far outside of her personal ideals which means she feels obligated to fix it?