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encantadiafan12 · 1 year

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Muzan Kibutsuji x Lord of Chaos! Female! Reader

The Lady of Chaos

Warnings: Torture, Gore, and Attempted murder.

(A/N: One-sided on Muzan’s side.)

Two floating red Crystal came down to Earth going near to a nearby skyscraper in Metropolis and of course not until sending a wave of red energy. Afterwards the two separated one to a museum of Metropolis and the other to mine. The second crystal thing then came to the mine coming across an Adamant or diamond to which she molded using a beam of red energy transforming it into a diamond-adamant wolf. When it makes contact. The crystal then took the form of human girl of 18 years old. She wears a school uniform not without a fire emblem on collar of her blazer, she has pale skin, black hair, and red eyes.

“Hello, I would like to express my appreciation. Thank you for being my anchor in the mortal plane.” she says before patting the wolf on it's head as it howl. “I shall call you Ares.” the girl says before she then gets out of the cave with the diamond-adamant wolf following behind her. The black-haired girl then raises her hand before snapping her fingers. Before it then sends to her different world, a world so different than the dimension she, the other Lords of Chaos, and Lords of Order to maintain the balance within the universe.

She then appears in another world in the streets she believe in one country with the diamond-adamant wolf (who was her familiar) was following behind her.

The thing then looks at her before drool comes out of it's mouth. “Another human. My day would just get even more better.” it spoke before it then proceeds to attack her. However, the diamond-adamant wolf immediately caught with his jaw. The female Lord of Chaos then looks at her familiar. “Ares, eradicate this mortal.” she commands as she watches as the diamond-adamant wolf then tramples of on the monster before it starts screaming before Ares then puts an end to it's life. The female Lord of Chaos then looks around the house not until she founds a mirror. She then looks at herself. When she saw the form she's in, she giggles. “I like this form.” She says before she noticing something. “Y/n....” she mutters which is the on the letters written on the table. She then smiles she seems to like the name. “I like it. I'll call myself; Y/n.” she then says as her familiar let out a howl at that.

Meanwhile...

A man with sickly pale skin, he has coal black hair, he wears western clothing, a fadora hat, and his eyes were plum red. This man is Muzan Kibutsuji; the Demon King. He then hears a howl of a wolf from far away. This is odd he doesn't remember hearing wolves around.

He then follows where the sound leads to. Muzan found himself on a temple right outside was a woman the age of 18 right next to her was a wolf that seem to be made out of crystals. The woman then turns around to face him. “My, my I didn't expect that someone has come around to know what happened.” she says in a fake curious tone.

The Demon King could tell she's not Japanese as she was wearing Western clothing and a fire emblem on the collar her blazer with a red diamond on the center. However, Muzan could tell she's a regular human but what he didn't know that this girl is neither human or demon. Something fundamental as looks can be deceiving.

The woman in front of him then made an eye contact with him. Her eyes were red which is unusual from a human. The Demon King was about to approach as she seems to be foolish on being alone. However, she knew what he was about to do before she then chuckles. She then snaps her fingers and he then stabbed him by when she traps him in a trunk of tree. The fake smile she had on her face then turn into a sinister one.

Muzan then notices something off about this woman. She doesn't smell like neither human and demon. She's something much more. Y/n then looks at her familiar. “Ares, eradicate this mortal accordingly.” she then commands. The Demon King then notices something. Did she just call him mortal? The Demon King immediately free himself and attack the woman with his might. Muzan grab the woman's neck and lift her from the ground. “Mortal, you say?” He coldly says before showing his true nature. “Yo-You?” Y/n says with a hint of excitement into her voice.

The female Lord of Chaos then raises her hand before snapping her fingers as she vanished from where she was making Muzan surprise. The wolf then tramples on him he tries to get out but it seems too strong. The woman then appears right next to her familiar. “My, my how interesting. You're quite similar to someone I have known.” she then says as she places her hand under her chin looking rather curious. Y/n pretty much refers to Vandal Savage who have been living for 12 millennia or so.

“Well, almost.” She says before she then raises her hand as bright energy was already around it as that made the Demon King surprise. She then fires a spell on him causing him to grunt and scream. Y/n let's out a sinister smile enjoying the pain she's inflicting. Her familiar already jumped off him when she starts torturing Muzan. The Demon King then looks at her, when he did she has a sinister smile on her face as she continues to torture him. This never happened to him before. Him the King of Demons was tortured by a being that is neither human or demon? Why him?!

After a few more moments she then stop. Y/n watch as Muzan was trying to steady his breathing. She then remembers on how Klarion spent 300 days and 300 nights on killing Vandal Savage in 300 different ways the past millennia which intrigued him. The Demon King then looks at her. “Wh-what are you?” he stutters out as the woman in front of him then smirk before she then approaches him. Y/n kneels down in front of him before she then grab his chin. “If you want to know. Then you'll have your answer. I am a being that had long exist ever since the universe was created.” she tells him as Muzan look at her in shock.

Muzan gave her a confused look making the female Lord of Chaos chuckle darkly. “How pathetic...” She says in an amusing way. “Who are you?” The Demon King asks again. Y/n then smirks. “Ever since coming around here. I do not have an appropriate name but I already do. I call myself; Y/n.” she introduces herself to Muzan.

The Demon King really chose the wrong target as he finds himself at the mercy of this being in front of him. The woman was about to do something before she then hears something in her head. ‘Let’s proceed with our plan, sister.’ a female voice says as that made Y/n widen her eyes slightly in shock but before it then shifts back to her sinister smile. She then stood up before making her way to join her familiar. The female Lord of Chaos then looks at Muzan one more time before she then smirks as she then snaps her fingers. When she did, she and the wolf disappear in a bright red energy.

Meanwhile back in the dimension where Y/n came from....

She and Ares then appears in some kind of wooded area. Y/n notices someone else a blonde-haired girl but she immediately recognize her. They both look at one another. The black-haired girl then snaps her fingers creating dimensional riffs to the world she stumbled upon but it was rather something different.

In the Dimension of Demon Slayer...

The Demon Slayers were currently in the Infinity Fortress to have a final battle with the Twelve Kizuki. However they along with the Demons sense something as riffs then opens. One of the Demon Slayer's widen her eyes. This woman is actually not from this dimension as her eyes widen at the place. “Roanoke Island.” she mutters under her breath while watching what's going on. This woman is none other Alice Blood; the Reincarnation of Jason Blood and Morgan Le Fay’s eldest daughter. What she didn't know everyone else is watching as things unfold in the other riffs.

The black-haired woman then creates a magical ritual circle with her magic. Y/n then turns to look at Child. “Proceed sister.” she says as the blonde-haired girl nod. Child then approaches her familiar whom she called Flaw. “If you would obliged me....” She says as the crystal like being kneels in front of her before she then flicks it's forehead sending a signal to another Chaos Lord who disappointed them and the other Chaos Lords.

Moments later....

A boy or what appears to be a teenage boy appear moments later holding a cat as he narrows his eyes at the two females as they gave him sinister smile. He hair style what resemble to be horns, pale skin, wears a black suit but the cuffs of his sleeves were red with a red diamond on both sides, and he has black eyes. Alice then widens her eyes. “K-Klarion?!!” she says in surprised. No wonder why the aura coming from the two is so similar to the Witch boy's. They were both Chaos Lords. One Chaos Lord is bad enough but adding two more to the mix is complete disaster.

“I know why you're here and it's so not necessary.” Klarion starts. “Were here because you have made our presence... necessary.” Y/n then informs emphasizing the word “necessary”. The witch boy scoff at that. “Please! You think the oppositions new arrangements can shift the balance of power down here, but we go through all these ups and downs all the time. I don't need back up, I don't need you two, or your two sparkles over there.” Klarion says but to some Demon Slayers and Demons who are watching everything through the riffs could see it's not the case.

“You’re confused. We're not here to help you.” Child starts allowing Y/n finish. “We’re here to replace you.” she says as that made Klarion look surprise. “What?” he mutters. “Right after we de-corporealize you.” The black-haired Lord of Chaos then says as that made the witch boy even more surprise. “Ending your existence in the Mortal Plane forever.” The blonde-haired girl then finishes. “What?!!” Klarion says even louder. While the Demon Slayers and the Demons in the Infinity Fortress were shock about what they are hearing. In fact, the Demon King was shock as well.

To Alice she doesn't want to deal with two Chaos Lords as Klarion is already worse enough when she was back in her dimension. “It’s not just the latest thing of course. That's simply the last straw.” Y/n says allowing Child to finish her sentence. “It’s the way you spent the past dozen millennia or so.” she then says as both her and the other Lord of Chaos then narrow their eyes. “Acting as lapdog to the Savage.” they both say at the same time. Everyone in the Infinity Fortress were confused on what they meant but the Daughter of Jason Blood knew. The Witch boy then narrows his eyes in denial. “I’m not anyone's lapdog. We're partners.” he says as that made the blonde-haired girl then tilts her head. “Are you though? Are you really?” she asks as if she doesn't believe him. “It seems to us you do his bidding. Despite the fact his clearly stated long term goal is to bring the entire galaxy under his sole rule.” Y/n then continues the explanation. “He’s all but a Lord of Order, himself.” the two females says at the same time.

Those in the Infinity Fortress were surprise. This Vandal Savage wants rule the entire galaxy while Alice is not surprise as she had faced against Savage and his faction; mainly the Light. Of course, Muzan was surprise about this as well.

Klarion starts to reason out. “But look what we've done together. I made a whole world without grownups, I made a Project Rutabaga of Flesh monsters that was really gross. Oh, and there's that whole Earth-17 fiasco.” he then says but only when his familiar and of course Anchor correct him. “Success. They knew I meant success.” he then says. Jason Blood’s only daughter than shudder at the things the Witch boy did as he gave her and her friends a very hard time. The others seem to not like about having a world without grownups could you imagine that? They were all snap out of their thoughts when Child spoke. “No, I think fiasco is the appropriate term. In fact, your entire tenure on Earth has been quite the fiasco.” she then says making Klarion frown. Y/n then raises her hand. “That ends now.” She finishes the sentence before firing bright red fire. However Klarion managed to dodge it.

Moments later someone came around the others were so glued to the fight between the Klarion and 2 of his fellow Chaos Lords to even notice. Alice then notices Zatana Zatara one of her close friends. “Zatana?” she then mutters. “Die you pathetic knock off!!!” the Witch boy says before firing a bright red blast but only to be block by Flaw and Ares. “We are rubber in your goop.” The blonde-haired girl then says in a sing song-tone.

Right after dodging the attack the two females fires a blast against Klarion only for him to put up a barrier but it wasn't strong enough to block the attack of the two. “How are you two so powerful?” he asks as that made the two female Chaos Lords amused. “Brother...” Child starts as both hers and the black-haired girl’s familiar move to the side. “Isn’t it obvious? We're powerful because we are not fighting with our powers alone.” She then adds. “You’re not facing 2 Chaos Lords.” Y/n then adds as both her and the blonde-haired girl then smirk. “We have all the Chaos Lords in our corner.” The two females says at the same time. “And together we'll banish you to ushering a new age of chaos in this world.” They both say before they then proceed to deliver another blast towards the Witch boy.

Klarion then teleports away creating a portal saying something that the others couldn't understand. The daughter of Jason Blood then notice that the blast are about to hit her friend. She then creates a portal back to her home dimension before creating her own riffs as they can't enter the ones that Y/n created. Alice then enters the portal as the other Demon Slayers mainly the remaining Hashira, the Twelve Kizuki, Yushiro, and Muzan go right through. The magic user was able to get to get friend in time.

Before Zatana could say anything the blast was to make their way towards them. They both said a spell which not only creates a barrier around them but also moves the blast so it wouldn't hit any of them.

The Daughter of Jason Blood then looks at her friend. “Zatana, are you okay? And what are you doing here?” she then asks on why one of her close friends is here in Roanoke Island. The female sorceress then sighs as the Demon Slayers and the Demons along with Muzan look at her confused as well. “Someone sent me here that why I see is not as it was.” she then reveals as that made Alice frown on who sent her here. “I wouldn't be surprise that if it's Stranger anyway. Who is a close acquaintance to my father; Jason Blood.” she then says as Tanjiro looks confused.

However, the daughter of Jason Blood then narrows her eyes. “You know, I wouldn't say anything else because somebody is going to use it against us later.” she says referring to the Demons. Alice does have a feeling her father would come around as Etrigan the Demon; a devil demon of hell who is stuck to him.

They then diverted their attention to back the fight. After firing two blasts Klarion appear through a portal making the two girls surprise as they both scream as the Witch boy cut them in half. Seeing that some of them want to vomit at what they just saw. The Demon King was even more shock. “*laughs* Got you two.” Klarion says but he along with the others then watch as the bodies of both halves of the two female Chaos Lords then remerge. The two then look at the Witch boy. “Was our scream convincing? We try to put what the mortals call them into it.” Y/n then says in amused tone. Klarion growls in frustration. “No, I wasn't fool for a second,” he then looks at his cat. “Was I Teekl?” he asks his familiar before he meowed. “Who asked you!!” The Witch boy yells out. Child then raises her hand before she then snaps her fingers as the flames around them then combined. To Alice and Zatana they knew this spell it was particularly fire serpents. The flames then merge turning into a serpent. “Not fair...” Klarion then mutters before the flaming entity devour him as both the female Chaos Lords watch feeling satisfied.

The Demon Slayers, the Demons, and of course Muzan look horrified. So this is the power of these three?

Timeskip....

It was during the final confrontation with the two female Chaos Lords. The others (Demon Slayers, Demons, Muzan, Yushiro, Zatana, and her students) along with Klarion and Dr. Fate fought against the two Chaos Lords however the two seem to weaken quite a bit after they lost support from the other Chaos Lords. The Demon King was staring at Y/n throughout the fight as they fought against one another. Even though, she nearly try to kill him months prior and in her case was hours ago. He had to admit she was very powerful, but at the same time beautiful for a being who existed during the very beginning of the universe although the diamond-adamant wolf she has as a familiar was keeping her on the mortal plane.

One of Zatana’s student is about to attack Y/n. The Demon King ran his way towards her and took the hit surprising everyone. The female Chaos Lord is shock as well. She then approaches Muzan who pretty much she didn't notice in his combat form as they both made an eye contact with one another. “I never expect that coming from a mortal like you.” she then says.

The remaining Upper Moons were surprised. Their master protected a Chaos Lord but the Demon King doesn't care if anyone is watching them. Muzan had fallen in love with Y/n, but knowing her she would think of him as foolish.

The fight then continue however the two female Chaos Lords ended up getting blind by their arrogance that someone is able to figure out the weakness of their Anchors. Traci, one of Zatana’s student fire to spells which not only hit the two familiars of the Y/n and Child. It also destroyed them as a result the two glow bright red and turn to their original form as a crystal. The Demon King was horrified to see the woman he fallen in love with him return back to where she came from. Muzan then grabs the adamant that was used for Ares as he looks at it.

The Demon King then realizes that he won't be able to see her again as her anchor was the only thing that was keeping her to the Mortal Plane. Of course, she won't be able to know what he felt.

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