I have two predictions about this series that would explain certain things;
- That she isn't actually trapped in the game, she is actually, legitimately, an NPC who has just become somewhat aware of her place within a game
- and the reason that is the case is because she, and all the other NPC characters, are trained on actual people and their personalities (perhaps being trained on similar personalities to their character, or perhaps like her, have become somewhat more aware of things)
Of course I wouldn't be shocked since I'm only half-way through if things are quite different than what I'm predicting.
Though it explains why the game masters aren't too fussed about a very serious incident supposedly happening (someone being trapped in their game), and why the other game characters are acting a little odd.
This would also allow for the FMC to actually have a romance with the MMC.
