Gonna dump a bunch of notes about my Black Butler AU I wrote back in 2023, just to have a backup:
-Like a lot of canon-divergent Kuro ideas I have, this is set in an alternate reality where all kinds of supernatural creatures coexist with humans.
-One of them is demons, there are different subspecies and not all of them eat souls. There was a time where all demons were feared and any human who was suspected of being in good terms with one became the target of a witch hunt. By the late 18th century, however, things have changed a lot.
-There has been an agreement or “code of honor” between soul-eating demons (commonly called Voids) and humans for centuries. Voids need human souls to survive, they cannot sustain themselves with anything else (it’s very rare for a demon to starve to death but they do become weak and vulnerable). Some of them are opportunists who roam in search of dying humans whose souls they can snatch before a reaper arrives. While others are more patient and prefer to cultivate a soul by forming a contract with someone who wishes to. Having your soul eaten is not the horrifying fate you may think it is: there’s no eternal torment, no hell, nothing. Just going to sleep never to wake up and becoming one with the demon. People accept this as another aspect of life. However, there’s one thing that’s unacceptable and it’s demons (unjustifiably) killing humans just for their souls, any demon who does this is considered a feral beast and will be hunted down (there are some methods to kill a demon for good). Even other demons look down on these individuals.
-The longer a human lives the more “nutritious” their soul is. Some Voids will form a contract with a human and serve them through all their life, and when it’s their time to go the person will willingly feed themself to the demon. Other demons even become familiars and stay in the same family for generations, swearing loyalty to the next person in line after they have absorbed their relative’s soul. People consider this an honor.
-Sebastian is a very refined demon who only consumes the highest quality souls after fulfilling a contract. The day RCiel is sacrificed is the first time someone actively summons him, as all this time he met all his contractees by chance. He eats the human sacrifice’s soul because why not, there’s a first time for everything. However, when he takes a look at all the cultists gathered excitedly looking at him he feels nothing but contempt and disgust, and slaughters them without second thought and without bothering to take their souls. They have the distinctive stench of someone who has done unspeakable things to an individual of their own species, especially to a youngling, and not even demons find these souls appetizing. So nobody would dare to judge him for disposing of them. After the fun bloodbath he senses a tiny presence nearby, and locates it in a cage in the center of the room. A small, frail human lays there, apparently dead, though he still feels their soul flickering inside. Upon closer inspection he notices it’s a young child that looks exactly like the owner of the soul he just devoured. “Ah, twins. How sad”. It doesn’t seem like this child will make it, but waiting until he finally dies goes against his aesthetic, and for some reason he can’t bring himself to either end his misery or leave him there. So he takes the unconscious child out of there, craddling him in his very demon essence, and just keeps him, like a person who has found a wet, dirty, barely alive tiny animal on the side of the road. Besides, if he manages to save the child and he goes on to live, they might make a contract and then he can claim his soul in the end. It could be a fun experiment right?
-From OCiel’s POV, the story starts off very similar to in canon: he still gets horribly tortured and abused. But since in this AU it all happens when he’s younger, his small body can’t take much and eventually he gets so sick and weak that he can’t even stand, and the cultists just leave him to die in the cage while they focus on the stronger RCiel. The day of the sacrifice he keeps slipping in and out of consciousness and can’t fully register or process what’s going on. Unable to tell dreams from reality, he suddenly feels a warm, almost velvety cloak that surrounds him. It’s very comforting and he clings to it with the little strength he has left.
#not-eli's-art #eli-rambles #kuroshitsuji #black-butler #au #canon-divergence #sebastian-michaelis #ciel-phantomhive #dadbastian #mombastian