Muzan Headcanons - Tumblr Posts

マルティナさん！無惨様ために脳内設定ヘッドカノンデートしても大丈夫か？ありがとう!💗

Kimetsu no Yaiba ~Boyfriend headcanons~

Manga/anime: Kimetsu no Yaiba

Warnings: nothing

K. Muzan

You're very special if Muzan noticed you: probably, either you're a very powerful demon or, if you're a human, he thought you were a very interesting element. Either way, though, you managed to get his attention, and now he won't let you go

Muzan will probably always remember your first kiss: it was a very breezy night, and you two were returning to your house; the wind blew your hair in front of your eyes, he gently moved it and, before you two knew it, your lips were already together

If you're a human, your dates with Muzan are indoors: either, if he's with you at night, you two cuddle in your bed and sleep together, even if he isn't sleeping (he's often lying watching you), or sometimes you go out for a walk (he stays very close to you so that no demon dares to come near you); if it's day, you two spend your entire day together (for example, you stay close to him while he's working). If you're a demon, however, he spends all his time with you: during the day he makes you stay close to him while he works on his experiments; at night you two either take a walk or stand together in the moonlight and chat

Muzan's first love languages are two: quality time and gifts. Regarding the first, he's a very busy person, so he really likes having you either close to him or on his lap while he's working on his experiments; many times he says you distract him, but in reality he loves it. Instead, regarding the second, precisely since he doesn't have too much time to dedicate to you (in fact, he often goes out in the morning when it's still dark and comes back very late), he often gives you small gifts, especially jewels, he's found in the shops or stalls he's passed by; he often comes back to you with a gift in his hand, saying: "I saw this and it reminded me of you."

Muzan is a classic guy, so he uses classic nicknames, like "dear" or "my dear". When he's particularly affectionate that's almost never he also calls you "love", "my love" or "darling". Only once he used a different name: one day, you almost risked losing your life, so he ran to you and held you. He then said: "Tsuma (wife), don't you dare do it again."

💮 Rules 💮 Masterlist 💮

Another gen z reader pls!

YOUR WISH IS MY COMMAND.

Yandere Muzan x Gen Z! Reader.

Also, this will contain TRIGGERING THEMES!! It could be anything, like mentions of murder, blood, obsession, anything yandere related. Basically dark content, so if you are NOT comfortable with such stuff, please do not read this post!

Okay, so before we start this shit, just know that Muzan here is kind of gonna be like, only good to you and shit.

"My love, I'm back-" Muzan announced as he started taking off his coat like they did in those 90s shit. Or not. God, my memory is fucking shit. That does not matter, for the only goal in your mind at the moment is to find a excuse to get away from this ugly orange of a demon.

"Oh no, I forgot to water my baguettes! I am so sorry, I must take my leave right now!" Just as you said that, your baguettes in the background screamed, "Hydrate us, [Name]!"

I can't even properly tell you how hard Muzan face palmed at your so stupid attempts to try and escape his affection??? And he doesn't even wanna know who you bribed to wear baguette costumes and say to hydrate them.. What did you even bribe them with???

One of them was probably Enmu.

Muzan, himself doesn't know why the fuck he finds you so amusing. It's probably because you are like, literally playing with your life. Literally.

Evidence is the time when you once tried drinking bleach because first, it looked tasty, and second, you wanted to know what bleach tastes like.

And my God, it did not taste as good as it looked like! IT WAS A SCAM. No one ever scammed you this hard. It tasted like extremely concentrated swimming pool water.

Oh that reminds you of the time when you drank swimming pool water-

And in the Taisho Era, there is no shit like fanfics or memes so Muzan can more than often find random drawings...which are memes but his boomer brain can't process what's so funny about it. Like, talking croissants are funny- no, not the ones you find on Kids YT.

But as I said there are no fanfics, and my goodness do you love reading, proof is of you reading this. So let's hope you like reading books too.

No fanfics. What can you do? Probably read Shakespeare. I'm bullshitting my way through this, please deal with it.

Of course, after reading Shakespeare your grammar and vocabulary got a lot better! Which Muzan liked, a lot.

But,,,,, you being you, now even have more ways to insult Muzan. Like,

Thou base decayed ingested-lump!

Thou perfidious weather-bitten writhled shrimp!

Thou fawning fool-born filthy rogue!

And you could go on and on, but let Muzan have a break.

It's so funny to the uppermoons, especially Douma, when Muzan is just 'scolding' them by 'gently' smashing there heads in and you come in and go, "Awww, mama duckling scolding her ducklings..." As you pretend to make a video with your phone which you don't have because Muzan broke it because he's an asshole.

And as soon as you come in, somehow all the blood disappears and everything is normal as he kisses your forehead and asks, "What are you doing here, darling, did I not tell you to not leave your room?"

Everyone present could feel the temperature drop when Muzan said that, and that was not a good sign.

"YOU AREN'T MY MOM." As soon as you said that, you ran away faster than light because you are....idk. You were able to run away mostly because Muzan let you, but trust me when I say that he wasn't angry at you, more so at the demons who he kept at your room's door to prevent you from leaving the room.

And those poor, poor demons who were now begging for their lives as Muzan glared at them, "I gave you one job, one job.."

That's just when you had to again come in, "CUT!" You yelled, "Do it again, but this time, with more feelings." The demons and Muzan nodded, "ACTION!" You said as the scene started again, this time, with more feeling.

One time you just pointed at one ugly demon and said, "This does not spark joy," Muzan killed it. And then after seeing what Muzan did to the ones you said that to, "This does not spark joy," you said to Muzan. Pointing at him.

And after that, he was seen sulking the whole day because he thinks you hate him, which you do. I hope. I don't know.

MASTERLIST

♡Yandere father muzan,

Headcanons♡

Tw:Murder,blood,violence,cursing

~~~~~~~~~~~~~~~~~~~~~

•First things first,who is you're mother and how

Did she gave birth to you?

•Well,i will be clear here,muzan might have a

One night stand with a beautiful oiran and left

Her pregnant.of course he didn't know but you're

Mother desperately tries to contact with him.

•After you're mother gave birth to you,she will

Definetely keep you.turns out,the oiran has a soft

Spot for children,so she thinks abondoning her

Own child is too cruel so she kept you.

•While she was busy,muzan goes back to her

And finds you.a delicate and harmless thing who

Stares at him with you're big doe eyes while

Babbling thins at him.muzan doesn't know why,

But this child shares some kind of connection

With him so he took you from his arms and

Began to examine you.

•He sniffes the air and smell a familiar scent,his

Scent.he can even sense his blood pumping

Inside of you're body.he looks at you again with

Wide eyes,but you smile at him.a smile so bright

He couldn't help but smile back at you.

•From now on,he promises to be a great father

For you.

•You're mother then caught him but muzan

Quickly kills her with a cold look on his eyes.

How dare she keep you all to yourself,she didn't

Even tried to contact him to warn that she is

Pregnant with his child.

•He is incredibly mad when you're mother didn't

Tell him about you but when you started crying

At the way he looked at you're mother so

Terrifyingly,he immediately turns to you and

Tried to coo you so you can stop crying.now,now,

He doesn't want his precious spider lily to be

Sad.please don't cry..daddy is here now.

•Yup,he took you to his place and you can tell

How fucking shock the uppermoons were to

See there ruler to bring back a cute baby on his

Way back.

•Muzan is such a caring and doting father,he

Also spoils you a LOT.he literally gaves you

Anything you want.no aeriously,ANYTHING AT

ALL.just say the magic word and it is all yours.

•Muzan is also very overprotective.he doesn't

Want any chances for the demon slayer corp to

Find about you.because ain't no way,he wants

His child to be in danger because of him.also

Zero chances of his child getting any lover,cuz

Like fucking hell,he'll let his child get tainted by

Some human scum out there in the world.

•He also forces the uppermoons to take care of

You when he's not there.mostly kokushibo and

Akaza,since he doesn't trust almost any of them.

•Kokushibo is his most reliable man,so expect

To babysit by him usually.if not the six eyed

Demon then expect basketball man to babysit

You next.

•Almost every uppermoons like you very much,

Douma and daki thinks you're adorable.gyutaro

Thinks you're kinda annoying but he secretly has

A soft spot for you.hatengu usually hides from

You since he thinks you're going to cry because

Of him but you just ended up thinking him as

You're grandpa.akaza also thinks you're actually

Quite cute,and he became you're 2nd favorite

Uncle.but of course,no one can compare to the

One and only kokushibo.

•Kokushibo is you're favorite uncle,since he's

The one who usually babysits you.he at first

Distances you from him since he thinks he'll

Scare you with his six eyes but you ended up

Following him everyone.

•Imagine you,a small toddler following the

Strongest uppermoon behind as he tries to

Hide himself from you.kokushibo ended up

Giving up,he picked you up as you and him had

A staring contest.you kept staring at his eyes

Until you let out a small laugh as you tried to

Hug him.

•This made him shock,but he quickly embraces

Back.and this was the time he promised to

Protect you with all his life.

•Meanwhile,gyokko isn't exactly fond of you,

Sure you were cute but you are kinda bothering

Him with you always trying to touch his precious

Pots.of course he can't scold you or else muzan

Will kill him.one time,when you were nine years

Old,you tried to make a pot yourself to make

Gyokko like you but it ended up a failure.

•Gyokko really did want to laugh at you're

Failure but muzan was watching his every move,

So in order to live another day he told you it was

Fine.

•Muzan then found out you are half-demon,due

To his genes.so,you can still walk over to the sun

But for not too long.you can at least say at the

Sun for like 40 minutes or so,but still,that didn't

Made muzan let you to play or do any outside

Activities.since you're papa is very protective of

You and will never let you out of his sight.

•But you still manage anyway,by the power of

Cuteness.

•Muzan still had a very anxious feeling,but since

He can't go outside or he'll be burn to crisp.he

Suffers in the inside,literally.

•One time where you play outside and a boy

Picked on you for having "ugly/evil" red eyes,

He made you feel mad and sad since you got

Them from you're one and only great papa,so,

You smack him with tears in you're eyes.

•And of course the boy cried like a bitch and

Threatened you that he's gonna tell his mom,

But the mention of the word "mom" made you

Realize that...you never did have a mom.the boy

Noticed you're upset face and realized that you

Never had a mother figure and began to taunt

You in the most annoying chant ever.

•Now feeling you can't take it anymore,you

Ran fast back to you're father where he was

Busy reading a book of blue spider lily's but the

Sight of you shedding tears where much more

Important than some blue flower.

•This is the time where you asked him if you

Ever had a mother and he widened his eyes,so

He crouched down to you're level as he asked

You:

"What made you asked that,my little rose?"

•He asked in such a gentle tone that you can't

Help but tell him eveything,how a boy called you

Ugly/evil or how the boy taunt for not having a

Mother.

•Now this made muzan enraged.

•How dare a impudent little bug insult you.how

Dare that rat call you evil.how dare that pest

Taunt you for not having a mother.

•He swore to you,he will oblirate that little

Shit for you.his sweet angel,his little rose,his

Precious spider lily.he definetely gave that boy a

Taste of death,and his relatives won't survived

His wrath too.

•Muzan gave the boy a visit late at night and

Made the rascal terrified for life until his dying

Breath.and as promised,anyone related to this

Punk must suffer anyway.he torn the insides of

His mother,he smashed the head of his father,

He made sure his siblings had their limbs torn

Apart from one to another.

•Muzan scowled at the way the boy's blood

Covered his perfectly tailored suit.it disgusted

Him to the bone.he growled but turned away as

He headed home to his lovely child.

•As years pass by,you can tell men/women

Fall over heels for you by you're gradually good

Looks that came from both you're father and

Mother's genes.(damn genes stronk💪)

•*Cough* Anyway muzan had to look out for

All the eyes that look you're way,he can tell his

Child grew amazingly and healthy.it really

Relieves him that you didn't get the same

Disease he had when he was still weak.

•Of course,you learn about the demon slayer

Corps and asked you're father about it but he

Quickly changes the subject and asked how

Was you're day or where have you been?or did

You come to you're see uncles and aunts again?

•He refused to accept you are an adult,you

Are like 20 years old!(in demon years)and muzan

Is all like, "yall hear smth?" He still baby's you

Even if you are already grown up.he just can't

Accept that his child is finally an adult and will

Not depend on him anymore,worse part,you

Are going through a rebel phase.

•You finally had enough of you're father being

Such a drama ass and won't believe you that

You can finally go out there in the world.he was

Just being unreasonable,so you escaped from

You're dad and got to see the wonders of the

World.

•When muzan find out that you were gone,he

Panicked and searched everywhere to look for

You.he believed that you were kidnapped so,he

Makes the twelve kizuki to search for you.those

Demons better get you back home harmless,if

He ever get to see a tiny strand of hair from

You,he will make those lowlives wish they were

Never even born from this world.

•He became an alcholic,he misses his sweet

Child...he wished to see their smile again.he

Misses how you used to call him 'papa'.he missed

How you will cling to him for his attention.he

Missed all those from you're childhood.

•Please,just come back to him.he miss you,his

Precious spider lily.his angel of a child.his lovely

Child.his sweet little baby.just come back,he

Promise to become an even greater dad than

Before.just...please...come back to him.

"(Y/n).......where are you..?"

~~~~~~~~~~~~~~~~~~~~~~~~

Muzan Kibutsuji - SFW & NSFW Headcanons

[Note: Relationship Headcanons of Muzan Kibutsuji from Demon Slayer. Reader will be human and a regular citizen for this scenario. Will contain NSFW and slight manga spoilers (just one) so minors/anime-onlys, please do not interact.]

SFW:

Oooooo wee. Mr. Grumpy for a Living himself. Being in a relationship with Muzan can be.... interesting. It can be a lot of things. He can act "generous" and spoil you like a princess or just outright mean as hell. Either way, you'll be treated more as a pet/prized possession than an actual partner.

Muzan, or Tsukihiko, first met you while he was on a stroll with his beloved "wife and daughter." You were minding your business, and the demon just couldn't keep his eyes off you. Of course, the demon chastised himself for even looking at anyone like that, much less a mere human. But, longer he had his eyes on you, the more he wanted to know about you. So, he began planning your move into his castle and his life. This Demon King wanted his Queen. Well... to be more accurate....

He was in need of you.

From your point of view, you noticed Muzan's intense gaze on you that night. To say you weren't fazed by it would be a bold-faced lie. You tried to shake off his glare, but something within you made your eyes turn towards his. The shivers that enveloped your spine, the slight hitch in your breath and body language, none of it went unnoticed by him. Those ruby red eyes of his.... it's like they put you in a trance. One that made you want to know more about him.

The next time you saw Muzan was during a local event in your village. As you went to approach him, the alarm bells in the back of your mind began to ring. Your logic was telling you to stay away from this man at all cost. Deciding to put those thoughts behind, you approach the demon and introduce yourself. Muzan was a bit surprised that you made the first move, but all it did was make his plan of having you that much easier. Giving you a warm smile, he returned your gesture and bowed politely.

“It's a pleasure to meet you as well, (Last Name). I'm Tsukihiko. I apologize for my staring the other night.”

Such a suave liar.

From that day on, a steady friendship ensued between the two of you. Friendly trips to the market, hangouts at local events, night walks in the village. All of it made you come to like Muzan even more. To the point that those feelings became rather.... loving. Initially, you felt guilty for even developing them. The thought of being with a married father made you feel icky. But, being the oh so attentive person that he is, Muzan took note of your inner dilemma and immediately knew how to dissolve those worthless worries. All it took was a fake smile and gentle reassurance.

“(Name), I've come to sense that you're worried about Rei. Well, I can say that it is not necessary. We got a divorce as of recent, and she took our daughter with her. A factor of why is due to what I am.”

Muzan then told you about him being a demon. How he had to consume flesh to survive. This new information made you feel highly conflicted, to say the least. Before you could even process his confession, you heard a twang and found yourself surrounded by a multitude of buildings. You go to question him, but what you saw made your body freeze. Those ruby red eyes you fell for were now a harsh, blood red with slits. The caring Tsukihiko was really the ever atrocious Muzan Kibutsuji, the King of all Demons.

The devilish man stood in front of you, caressing your cheek gently, despite the look of possessiveness in his eyes. It was at this moment that you knew what you were dealing with. It terrified you, but.... it also intrigued you. It only made you fall deeper in love with him. Which is exactly what he wanted. “From this day on, you are mine, and mine only. No demon or man is allowed to be in your prescence, much less look at you. Such filth shall not matter to you. Ever. Do you understand.”

As most people say, Muzan has achieved the rich status and will pretty much spoil you. Anything you want, he's already at the place, cash in hand. That kimono you were eyeing? Already in the closet. A piece of jewelry you talked about getting? He's already putting it around your neck. This man has bought you so much stuff that you feel like a spoiled princess rather than his s/o.

Affection is very rare with him. He's not exactly the romantic type, but when he's in the mood for your touches, he'll just stop you from whatever you were doing and sit you in his lap. He'd caress your thighs and deliver small kisses to your neck. He would hold you tight, almost clingy, but these moments always made your heart flutter.

NSFW:

Now, you know this man is experienced. He's lived for over a thousand years, plus he had five wives in the past (though he treated them like complete shit). Muzan has the knowledge and skills to make the human body experience the ultimate pleasure.

If it weren't for Muzan's ability to hold himself back, he would've jumped on you then and there. The site of the soft ropes decorating the canvas that was your body made him aroused. He decided to heighten the experience by blindfolding you. The demon began to circle you, using the tips of his fingers to stroke the skin of your tummy, goosebumps appearing in their trail. He then moved them to your lips, letting them invade your mouth. You happily sucked on them, a soft moan emitting from you. An amused smirk formed on Muzan's lips.

“Such greed you have. Are you so reluctant to suck on my fingers? Perhaps my cock would be a better option for you then? Hm?”

It seemed his statement went straight to your core. As he stood in front of you and adjusted the rope to spread your legs, Muzan chuckled at the sight of your pussy drooling. Kneeling down, he delivered a series of kisses to your clit while sliding his middle and ring fingers in. To say you were a whimpering mess was an understatement. A combination of not knowing when or what he'd do, plus the feeling of his slender fingers, your cunt sang a song of joy for him.

Muzan is definitely big. He's definitely a good 9 inches and would increase its size to a 10. His cock has veins on both sides, and a pretty pink tip. You didn't know how you were gonna make it with a monster like that, but no worries. Muzan will make it fit. It's why this activity is done with you and you only. Your pussy is the only thing that's capable to handling him.

Your heart jumped a bit when you felt your body being suspended a couple inches off the bed. Was this man really about to fuck you stupid like this? Taking off his clothes, Muzan stood on the bed and used the tip of his dick to tease your entrance. You whined at him to stop the tease and get on with the show. A slap to your clit and the rough pace of his thrusts made you pause your complaint, your loud mewls ringing in the air.

“Cease your complaining. I'm the only one who gives instructions here. Are you that hungry for my cock that you decide to be a brat? To be so desperate as to beg me for it? So filthy. But nonetheless, I will gladly show you just how much I can offer this pussy.”

Muzan's favorite position is definitely between missionary and doggy. Missionary allows him to see you fall apart and mark your neck with his lovebites. Doggy, on the other hand, gives him access to smack your ass to his heart's content. He also loves to push your head into the mattress and fuck you harder. But, his number one will always be you on your knees, sucking him for everything's he's got.

Ya'll have more than likely fucked while he was in his female form. You never knew that tribbing could feel so good. And boy, was Muzan a master at the art. Crossed missionary, cowgirl, you did it all. Of course, she fucked you with dildos of all sizes. Some days, Muzan would overstimulate you with a vibrator attached to your clit.

“You can't handle anymore? How disappointing. You've only had four orgasms so far. Surely you can take more, my naughty girl.”

The overall lesson here? Muzan Kibutsuji is a god at sex, and you will always be left a drooling mess.

[Here's Muzan! Ngl, I went a bit wild with NSFW jdndnrnr💀. Thanks for reading! Likes, comments, and reblogs will be greatly appreciated 💕.]

[Tagging: @sailewhoremoon @frxxst]

“it wasn’t your fault”

[muzan kibutusuji, kokushibo and akaza x gn! reader]

╰┈➤ includes; mentions of r*pe, self loathing, death (not reader), please note this is a triggering topic so readers’ discretion is advised

╰┈➤ extras; this was a request, sadly I can’t tag them cause tumblrs’ being a bitch about it so I just hope that the requester comes across this

╰┈➤ a/n; it’s important to note I haven’t dealt with anything like this personally, so apologies if this doesn’t seem realistic or is badly done, I will try my damndest to be as respectful as possible with this fic

ʚ ═══･୨ ꕤ ୧･═══ ɞ

muzan kibutusuji

yes, he’s a demon, not just any demon but the king of demons, which certainly means he cares for no one, especially not a human of all things right?

wrong

muzan originally planned on turning you, when something in his dead heart jumped for joy at the sight of your face, he just couldn’t turn you

and so he protected you when needed and eventually you ended up dating

one thing he noticed is that whenever he goes to touch or kiss you etc. you seem to back off or hesitate, you believe he doesn’t notice but he does

he’s also noticed you tend to cover your body 24/7 with baggy clothing and never wear short sleeved shirts or shorts

when he confronted you about it, you just burst into tears, thinking he would dump you or blame you for what they did to your body

with a comforting embrace, and some time to mull it over, you decided to tell him what happened

muzan was furious to say the least, not at you, never, he was furious at the disgusting person who dared to lay their filthy hands on you without your consent

he gives you little kisses on your face (with consent of course) and hugs you close whilst assuring you “it’s not your fault”

later on when he was sure you were fast asleep, he took care of a certain someone

safe to say that that person will never touch you again

ʚ ═══･୨ ꕤ ୧･═══ ɞ

kokushibo

it’s pretty obvious he’s a demon

so as soon as you guys crossed paths, you could tell he wasn’t human by his face alone

at first you were worried he was gonna hurt you, but he simply shrugged and explained how he doesn’t bother killing people unless necessary

somehow you guys ended up in a relationship and bam!

you’re one of the most protected people in Japan

kokushibos’ weary eyes couldn’t help but notice your hesitancy towards his intimate advances, no matter how simple

he could also tell you held some sort of self hatred towards yourself, as he had been in your position hundreds of years ago

he brings it up one afternoon, explaining how he wants to make sure you’re both comfortable in the relationship

you hesitantly give him the answer, expecting for him to kill you on the spot

only for the usually stoic demon to wrap you into a tight hug, arms trembling and face contorted in anger

“it’s not your fault, you didn’t do anything wrong” he seethed, before asking if you remember what they look like

after giving him a brief description of them he was off in a flash, seemingly teleporting to god knows where

the person trembled, cowering into a corner begging for their life to be spared, kokushibo simply unsheathing his sword and landing cuts all over them so they can bleed out slowly and die from the blood loss

when coming back from his deeds, kokushibo saw you in bed wrapped up in the blanket, he simply climbed in after you and hugged you from behind

ʚ ═══･୨ ꕤ ୧･═══ ɞ

akaza

definitely the most angry out of all three demons

he will hunt everywhere for this person and won’t take a break until he finds them and breaks them himself

when he does come across this ‘human’, he will personally punch them so that they die from a slow painful death

when coming back to you, akaza will simply be there for you throughout the healing process/trauma

he hates how the monster caused you so much trauma

akaza is always there for you if you want to vent or talk about your feelings

if anything like that ever happens again, tell him, he’ll be there for you and will also personally deal with the monster that did this to you

ʚ ═══･୨ ꕤ ୧･═══ ɞ

© content belongs to @huboi, please refrain from republishing on any other platforms! I don’t own the characters in this story