What are you doing with the Orzeca Lightstone?

Quest Text Kamasylvia no longer exists to me. There is only the queen who I once served.
I wonder what the Ganelle will say when they realize the truth behind the false queen...

Summary You were snooping around last time... What does it look like I'm doing?
I'm just lighting up this cave, that's all.
...
What are you giving me that look for?
Your eyes look different for some reason.
Haha... I thought you're foolish, but it looks like you know something now!
Now, if you've figured out how power is divided in this land,
it's time for you to carefully choose your side!
Soon, dawn will fade and the forest will be burned to ashes.
If you don't interrupt us, I'll take that as you are loyal to the new Moon.

Summary ...Ataraxia NPC Knowledge? Who's that? Should I know her?
Ah, yes. That naive Dark Knight who got stuck in the gutters?
Foolish girl... She was too clumsy and careless...
Not to mention, quite the eyesore. I'm glad she fell to that trap. Good riddance!
She was such a nuisance, let's be honest.
You should feel grateful that we got rid of her for you.