Trying so hard to resist the Dadbastian temptation HHHHNNNNNNHGGGGG but... what if Kuro AU where the whole cult kidnapping and torturing and sacrificing happens some years earlier so when Seb's summoned he sees a traumatized 5/6 years old Ciel crying in the cage (or maybe too broken to even shed a tear anymore) and he doesn't know exactly what he feels but it's like if a human found a pathetic tiny wet animal and felt bad for it, so he takes him out of there and little Ciel clings to this weird ass creature because it's the first thing in a long time that doesn't want to hurt him. And Seb doesn't really know what to do with this little human but something drives him to stay with him and try to keep him alive. And 5/6 years old Ciel is maybe still too young to process all this and can't think about revenge now, he just wants bad things to stop happening to him so once he's 100% sure he's safe around the demon he sticks to him like a little duckling. And maybe Seb stills views all humans as cattle/potential food but honestly? Ppl irl can and often do find cattle/meat animals cute and are protective and nurturing towards them even if they're gonna be eaten, and even keep certain individuals as pets all their lives so I don't think that'd be too unrealistic. (Granted that maybe a younger child wouldn't have survived all that, but let's imagine he miraculously did).

SebasDad Tao and his Tiny God have me in a chokehold

That butler, emotional support animal. More Dadbastian AU because it brings me so much joy 🖤💙 Have something with happier vibes, a tiny Ciel with Sebascrow (Crowbastian?). The basic idea is that, after turning into a dog to comfort the kid was a success, Sebastian tries experimenting with different animal forms. He still uses his human form to perform a lot of tasks, but he knows from past observations that most human children have a fascination with animals from their world. Little Ciel is at first a bit skittish around human-looking Seb, but when he sees all the cool transformation tricks the demon can do he starts thinking he's the coolest thing and warms up to him. I'll do fully rendered pieces again someday but for now it's very fun and relaxing to just sketch anything without worrying too much about detail 🙂

Step 1: Eat the sacrifice soul. Step 2: Kill the people who offered you said sacrifice soul. Step 3: Adopt the sacrifice soul's twin on a whim even though he's on the brink of death. Step 4: ?????? Maybe the demon didn't think this through... Very messy thing I felt the urge to sketch on my journal, I should make traditional art more often. (In case the speech bubble isn't very clear, it says "What am I going to do with you hm?").

Btw y’all can bet there’s gonna be sebagni in my dadbastian AU. Not the usual way people write it tho. I write this as a world where some demon species have no concept of romance, sexuality or intimate affection and their reproduction is a bizarre demonic version of cell division. However some of them, mainly those who have lived in the human world enough, might find humans (or other sentient creatures tbh) that they develop a special bond with and become close to, tho it’s a kind of bond that can’t be described with human language. So Sebastian just meets Agni and is like “he’s the one”, I call it a queerplatonic relationship because it’s the closest human term for it but if Seb tried to explain it we wouldn’t understand a word lol. But still sebagni nonetheless 😌

Tl; dr:

(Edited to clarify a couple of things).

Ok ok I think I have this dadbastian AU more or less figured out. Gonna braindump what I have so far under the cut.

-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.

Maybe I’ll draw this one day, but imagine Sebastian carrying little Ciel (who’s fast asleep in the demon’s arms after a long play session) to his bedroom, while thinking to himself “I had never observed human younglings in such close proximity and for such long periods of time before, but I have to admit they do have an appeal. Of course, I assume this is an evolutionary development with the purpose of preservation of the species, as people are generally hardwired by nature to find young mammals adorable and thus are driven to protect and nurture them”. He tucks the child under the blankets and, before assuming his borzoi form and jumping on the bed (something that has become a habit by now) he watches him for a while with curiosity. Still fast asleep, Ciel rolls on his side and curls up into a ball. Sebastian puts a hand over his mouth to muffle a chuckle. “My goodness, he really is like a kitten”.

Your recent drawing is so cute! Bassy protecting his baby.

Thank you so much, anon! 🥰 I’m glad people are enjoying all my DW pieces, I promise I’ll catch up soon! 🙈He a proud papa uwu

SEBASTIAN AND HIS BABY BOY! THANK YOU SO MUCH FOR MAKING THIS HAPPEN!!!

Thank YOU so much for your enthusiasm, anon!! We hope everyone will have a great time 😍Have an Eiffel boi.