Hey, not to spoil anything ... and I should've discussed this with you earlier, but I had imagined Ikina's demon blood to be more from the cold realms of hell ... so she's have a minor resistance to coldness, but flame. Also thinking whatever demon blood is in her blood, it comes from demons that are more indifferent, cold-blooded (in the emotional sense) and obviously, more resistant to cold than fire. Figured they'd also be known assassins and somehow Ikina's elven blood has drawn that out and eventually able to match/surpass their own. Unless that ruins a part of the story, that is?

These are all just ideas, so feel free to say whatever in reply. :)