It's weird how many potential reincarnators there are in a story where the main problem is that everyone is a yandere.
Well, this became interesting. We totally didn't get any vibes that the heroine was like that before now, so is it a recent memory recovery or something? Though the key point seems to be that the Heroine's reincarnator might not know about the game at all. Otherwise they'd be much more anxious.
Either way, if both the villainess and heroine no longer act like themselves, then...isn't the story gonna be crazy derailed?