Like honestly i get it that you want to take conventionally attractive character and then have her fucked up but if you want to own chuds go write Tumblr Blog
As you might have guessed: there is no Mireya. The bloodlust is pure Camellia. She's a mass murdering psychopath, and completely unapologetic about it. She NEEDS to kill and does not give a rats ass about spirits (even if they are the source of her magic) or the Worldwound. And no, killing on the field of battle just doesn't do anything for her. That's why you end the quest by letting ther gut her father, then all his servants. Her alignement get revealed then. To everyones absolute surprise it turns out to be CE
She is honestly not written as character but as Fuck you, like i get you might not find the community welcoming but you dont write one of the companions for romance STRETCHGOAL as fucked up as this, and with no good endings. Like YOU DONT AUTOFAIL PLAYER ROMANCE