Headcanon/AU(?) - In any world where Celine is a kind of demon (gumiho, queen of demons, bonghwang, etc) she has been able to hide her demon self for years and years until the moment that Rumi/the girls are in trouble. The second she hears them scream or realizes that they need her, all rules go out the window and Celine’s main priority becomes keeping them safe, even if that means revealing her true self.
I’m picturing it like the girls are in trouble, and at first Celine arrives on the scene as a Hunter. Swords out, taking down demons with brutal efficiency. Proving that she is their mentor for a reason.
But then a demon gets one of them by the throat, arms long enough that kicks and flailing punches can’t reach the demon. And Celine watches in horror as her girl’s soul starts to travel into the demon’s mouth.
She sees red.
The girls see yellow.
The demon doesn’t see anything. His head gets ripped off before he even knows what hit him.
I'd like to image that it's Mira simply because it shows that Celine has come to value her and Zoey as much as she values Rumi. She would do the exact same thing for all of them, not just one particular person.
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The demon dies and, at first, everyone assumes it was just Celine being Celine. She wasn't Korea's sole hunter for generations for no reason.
But then they see a demon. A demon in Celine's clothes, that kind of looks like Celine, but is very much NOT human, growling at the remaining demons like they were the ones who nearly killed one of the hunters.
Celine has spent so long learning strategy and the best way to attack an opponent but, in that moment, she's looking to hurt them. No best way, no moving around debris to make sure she doesn't get hurt, no checking for civilians: the demons just have to die. That is her ONLY objective.
Meanwhile, Rumi and Zoey are pulling Mira to the side (because nearly losing your soul takes a lot out of you) and just watching Celine, or who they think is Celine, ruthlessly go after these demons until those who can, flee back into the demon realm.
(Because I’m partial the the gumiho Celine au)
Celine doesn’t look like a demon the girls are used to seeing. She’s got eyes and ears like a fox, notable fangs bared as she snarls - snarls - at the remaining demons. Multiple tails swish angrily behind her, and claws have sprung from the tips of her fingers. And what’s even stranger: the remaining demons look more scared of her now than they did before.
The resulting bloodbath gave them an answer.
(Background: I think Celine did get the fox starved out of her by her mentors when she was a kid, but they were less hostile about it and when the last of them died, she gave the bead back to Celine. That particular mentor had always felt uneasy about what they did. She had also experienced a stint of being the only hunter and knew the toll it takes, so she returned that piece of Celine’s soul with the instruction to use it only when being a hunter isn’t enough. Celine resisted the temptation for years, but as she watched Mira fading in that demon’s clutches, she couldn’t anymore. I also like to think gumiho operate somewhat separate from other demons, and as a result, most other demons are wary of them. Gumiho don’t have an allegiance either way, and as a result can be dangerous to Gwi-ma’s demons)












