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akazas-favorite-wife · 8 months

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Akaza X Muzan’s Daughter

Bare with me I’m trying 🥹

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“Kaza! kaza!” A child ran up to Akaza as he entered the infinity castle for the first time in a while. Y/n, Muzan’s daughter, he felt his eye twitch before he smiled slightly looking down at the child.

“Well if it isn’t Little Miss Muzan,” he stared as the child stopped infront of him, hands together infront of her chest, star filled eyes and a wide smile, she had adored Akaza, he was so funny with the ways he’d always fight with Douma, or how he was always so quick to kneel to her daddy, how obedient he was. It was funny in her eyes how he’d do almost any thing asked of him without resisting including playing with her and the tea set Biwa Lady had gifted her. “Welcome back Kaza! Daddy’s in his lab, Ko-Koko koku shiba,” Akaza had to refrain from snorting at the child’s failed attempts of announcing Kokushibo’s name, “kokushiba is here too.”

“Thank you-Doma!” Akaza was cut off as y/n turned to look at Doma who had just appeared, almost instantly the sound of a Biwa was heard as the three appeared before Biwa Lady. What was new in the castle was the Pillow and Slightly smaller Biwa beside her, the Biwa young Y/n was learning to play. “Well if it isn’t little Y/n” Doma pushed past Akaza smiling brightly with his eyes closed reaching a hand out to touch y/n small round face, “Where’s your Father Lord Muzan Y/n? Hm?” He hummed suddenly tripping forward as Biwa Lady had sent him to a different platform. You were currently her responsibility, no one would touch you under her watchful eye. Y/n still smiling turned to look as other Kizuki started to file in, as soon as all 12 had arrived Biwa Lady sent y/n who had been receiving younger sibling treat from Gyutaro and Daki to her father. The meeting started as the 12 Kneeled in respect to Muzan, he started to speak, announcing the hunt of something special, y/n was lost to it all studying the 12, watching them, watching her dad, she yawned from her place in the castle that allowed her to hear and see everything. She fell asleep for a while waking up when the meeting was finally closing. Appearing behind her father, he looked back over his shoulder to acknowledge her before refocusing on his last words. As everyone started to leave y/n started to say bye, calling out everyone’s names with the cute little mess ups that some found endearing in a way.”

“Bye Koko! Bye Doma! Bye Tengu! Bye Okko!Bye Gyu! Bye Daiki!” All of the Kizuki Dismissed them selves from Muzan, and giving bows to Y/n with words such as “Take care of yourself young y/n” in the end Y/n looked up at Akaza “Bye Kaza!” Waving her small hand he nodded and bowed slightly to the child “I wish you well Little Miss Y/n” before he too was gone.

Y/n turned to look up at her dad, before holding her hands up, he let out a single breathy laugh before lifting her up. “As for you y/n, we have a lot to do with our own time.”

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Over 100 years had passed, Little Miss Y/N had become Lady Y/n, the pride, joy, and Apple of her fathers eye.

She had grown strong in her fighting forms, educated and talented in many arts, being wise and just as invested and studious following closely in achieving her fathers dreams. The Demoness was año force to be reckoned with, the deceased body count of hashira, pillars, demon slayers in training she had slain were fascinating. Muzan knew if he couldn’t rely on one of his ranked demons, and he couldn’t make do himself, he’s Blossom would never fail to appease him. She’d carry out almost any task with easy, precision and with out the need of extra work or steps.

“My little blossom,” Muzan moved his daughter’s hair away from her face, she had his blazing red eyes, as she sat kneeled, he took a knee before her, “You are absolutely perfect in every way imaginable, if only the others could manage to reach your level of perfection and competence. We would be unstoppable.” You smiled up at your dad nodding slightly, “I’m grateful dad, for everything you’ve done,so I only hope even if it’s not in full, that I can repay everything you’ve ever given me.”

The soft smiles you two shared in the moment were almost enough to pull at Biwa Lady’s heart where she sat. As she plucked a note, you two were separated, your father sent to his own location as you were sent to small town to follow leads of the Blue Spider Lily, you looked up at the sky, the sun was blazing as you stepped out, the heat of the sun almost welcoming on your cold skin, your red eyes shifting to e/c.

You remember the panic and fear in your dads eyes after you brought him with you to one of the balconies in the Infinity Castle, cracking open the door just enough he stayed far from the sunlight that poured in, then he saw you, watched as you stepped out into the sunlight, he screamed your name doing his best to run to you being burned as he reached for you as you stepped out, his own screams falling silent on his ears and it felt like for once all he could hear is what would be his heart beat. Then you turned and smiled at him, he felt tears sting his eyes and he watched you smile, you’d hurt your father this way, comment an act of suicide and turning to smile at him in your last moments??? He’s not the monster, your are- then he saw you were dying and his eye twitched as you started to to explain how you had been experimenting with altering blood, altering dna, altering your existence, one of the biggest problems your father had was finding loyal followers that could walk around in the day Light, you could never find any and instead decided, “It WILL be me” walking in and sliding the door shut your dad whacked you lightly on the back of the head screaming to not scare him like that before pulling you into a hug, “I thought I was seeing the last of you, I was scared it was your end, that i had lost you.” Your father’s words were out of character, soft whispers no one would ever believe he’d said.

Refocusing on your mission, you found yourself walking through the village tracking a scent. Gyokko. You made your way around, the strip of shops dipping into an alley, and walking through the ally that led you to another strip of shops, you stopped just before coming out on the other side, that all to familiar vase sitting just on the edge of a shop table, moving swiftly you walked by picking it up and holding it to your chest as you walked hoping the shop owner wouldn’t see you, as you made your way though city again you found a place that rented over night rooms, walking in you flirted with the young male while asking for a room, he had completely forgotten to charge you as he handed you the papers and a key to your room. You thanked him with a smile letting your hand graze over his as you took your papers, you walked away smiling back at him until you turned the corner rolling your eyes, “Idiots” you mumbled before you heard a giggle come from your vase, scoffing you smiled at the vase shaking your head, “oh Gyokko it’s feels like it’s been centuries hasn’t it?” You placed the vase in the middle of the room as you went around blocking all the windows and open doors.

“Lady y/n! It’s been years since we last seen eachother, i forget you’re not the little girl who used to scream” he changed his voice to sounds babyish “Okko okko! Will you show me how to do that?” You instantly remembered that day you pointed to the mountain scape he had on his pot, it was beautiful in your eyes, the colors, the brush strokes, as a kid you didn’t know the technique it took but you knew you wanted to do it. “I remember, it was a pretty vase. Your skills were limitless Gyokko” you smiled and shook your head and he stood up straighter, “I see you’ve also grown out the name Okko Lady y/n, my heart, it aches to think you don’t love me as much as you used to, no more Okko Okko, just Gyokko”

You felt the smile on your lips, forgetting how Gyokko could be, you thought it was so funny as a kid, but now understanding why your dad had his head a third of the time. “Don’t be that way Okko, i didn’t grow out of it, I just thought now that I’m older and refined you’d all prefer to be called by your names instead.” The conversation quickly moved to what you had arrived for, Gyokko had learned some information, mostly talk and rumors of what your dad had sent them to find years ago. But it’s not what you had been sent to look for. What you were here for was to watch Enmu, you had caught word that he could be acting irrationally, and you’d be damned before you let him throw away all your fathers work. “Ty Okko,” you smiled at him, he seemed to smiled back, “I’ll see you soon, I need to find my next target.”

Just as you stood to exit the room Gyokko spoke out peaking out just barely from his vase, “Lady Y/n, it amazes me how you haven’t ranked in the 12 Kizuki, maybe you should consider giving it try.” He giggled before disappearing into his vase saying “I’m sure you could string Doma or Kokushibo along” You stopped hand on the sliding Shoji door, looking back over your shoulder at the vase that sat there. 12 Kizuki Huh, maybe, maybe you would give the Kizuki a challenge.

#Akaza x reader #Akaza x muzans daughter #kny akaza #demon slayer akaza #demon slayer insert #kny x reader #demon slayer requests #12 Kizuki x reader

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netmors · 1 year

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Muzan and Madoka 👹

Drawing Kibutsuji full body turned out to be not so easy, heh... but I'm practicing.

#Kimetsu no Yaiba #demon slayer #kimetsu no yaiba fan art #demon slayer kimetsu no yaiba #muzan #madoka #muzan kibutsuji #kibutsuji madoka #muzan unnamed daughter #muzan daughter #demon #human #anime #manga #art #my art #kiburei

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6chimeraqueen9 · 1 month

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Rei and her daughter most likely shortly died after Tanjiro met Muzan in Asakusa, and it's partly Tanjiro's fault. Just think about it.

Muzan often uses others to blend better in society, often killing women's husbands and taking their place later by wooing the women and using their status or resources for his research, if his disguise is discovered by the corps, do you think he'd leave any witnesses behind?

No, so after being seen by Tanjiro and seeing the hanafuda earrings, filled with anger and frustration of those memories, and adding to the fact he was discovered, where do you think he'll take out that anger?

If Tanjiro hadn't followed Muzan there, Rei and her daughter would've lived longer, maybe long enough for Rei to be verbally abused by Muzan to the point she offs herself(like his five previous wives).

Yeah, Muzan may be beautiful, but he's really rotten on the inside lol.

#kimetsu no yaiba #muzan kibutsuji #demon slayer #kny muzan #muzan #Kny rei #Rei's daughter #kny tanjirou #tanjiro kamado

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mochii-chan02 · 8 months

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Hello! This is my first post so if it comes out a little crappy I apologize, same goes for grammar mistake’s or anything els that may be wrong. Anyway I hope I don’t bore you too much with reading all this so here you go.

Muzan x Y/N Platonic (father and daughter)

I feel Muzan would be a VERY overprotective father as in you would not be able to leave the infinity fortress alone and without supervision from either himself or one of the kizuki. He would mostly likely not let you meet the kizuki until you’re at least 100+ years old and even then he wouldn’t let you meet them, so you’d probably spend most of your days alone or with him and Nakime. When he’s out with his fake family’s or just way to busy to keep an eye on you he’d tell Kokushibo to babysit.

One’s you’ve grow up he’d trust you a little more to do things on your own, but don’t get your hopes up cuz it’s just a little. He probably wouldn’t hit you and only yell at you if he got to stressed and wasn’t able to calm himself down, but would make it up to you by buying you something nice like a new kimono or a toy something he’d think you’d like. Unfortunately I don’t see him knocking on a door that is in his own infinity castle so he probably just walks in your room whenever he wants. You probably don’t have any siblings so it’s only you and Muzan but you’ve never really needed anyone els. It’s just you and your dad, but you wouldn’t have it any other way.

#kny muzan #demon slayer #muzan headcanons #muzan x you #muzan kibutsuji #headcanon #father and daughter #single father #demon slayer demons #kibutsuji kny #muzan x y/n #kimetsu no yaiba muzan #Muzan x y/n platonic #platonic #platonic love

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demonslayedher · 1 year

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Things that went through my head in this episode:

--I'm hurting real bad in my Kamado Tanjiro feels, for two reasons.

--First, something that stuck out to me in the previous episode, and which I just checked against the manga, which has the same--the moment the Swamp Demon's head begins to appear from the ground, Tanjiro starts going into the 5th form. Yeah, that one. He changes it part-way through when he saw there were more heads he needed to target, but his very first inclination was to try to offer mercy. (Granted, we also see him slice this same demon's mouth when he starts going off about needing to eat girls while they're fresh, Tanjiro's mercy does not impede his righteous anger.)

--Second, we all remember that understanding smile he gives Kazumi in response to Kazumi lashing out, but I did not recall the words Tanjiro says to Kazumi right before that. These words are so very familiar, though, you know why?

--BECAUSE IT'S THE LYRICS OF THE "SONG OF KAMADO TANJIRO" AAAAAAAAAAHHHHHHHHHH I was very close to tearing up at this part, aaaaaaaaahhhhhhhhhhhhhhhhhhhhhhhhhhh

--Ok, let's set aside how much I love Kamado Tanjiro and what this rewatch is doing to me by focusing on how little I cared about the Swamp Demon that I didn't even notice in my watch of the previous episode that he does not, in fact, wear a hat.

--That being said, though this battle feels forgettable now after everything we know comes after it, on my first watch, it was pretty interesting. Beside the mechanics of Tanjiro fighting in a space where he doesn't have ground and must rely on the power generated by one of the forms he has practiced, we get to see Nezuko through around her strength and it is a blast.

--There are two things that I love that the Swamp Demon points out for meta benefit about Nezuko. First, that her moves are simple--I've always stood by my analysis that Nezuko is all instinctual power and no finesse, she fights like an angry toddler, but it is so much fun to watch her ignore finesse and throw her strength around willy-nilly with kicks and punches and stomps. Second, that she must had been bequeathed a very large amount of [Muzan's] blood to be so physically powerful. I love that we never really know how much of Nezuko's strength is due to Muzan experimenting on her with lots and lots of blood (making her ability to get away from his curse all the more impressive), or due to Nezuko sheer force of fill to make herself stronger (also very, very impressive).

--I love how this fight also makes Nezuko seem delicate once she's injured, for she does still have the frame of a younger sister whom Tanjiro wishes to see no harm come to.

--I love how Nezuko still needs so, so, so much sleep at this point in the series.

--I love how we see Nezuko's thoughts and understanding of both Tanjiro's instructions, and Tanjiro's strength.

--I love Nezuko

--On the titular character of this episode, this series really wasted no time in sending us straight into the main baddie one episode after he was named, even on my first watch I was like, "wait, really?" and Muzan is as stunned about this as we the viewers are.

--He looks at Tanjiro with the disdain of someone who has just found a flea on their fur coat.

--"Kokushibo, are you seeing this? There is a flea on my coat."

--Muzan has insulated himself from the Corp so thoroughly that having this small fry, whom he couldn't even recognize as a Corp member until he had laid a hand on him and Muzan had to actually turn around and look at him, actually get within a mile of him is so ridiculously incredulous that Muzan doesn't even know what to do at first. This isn't supposed to happen. This never happens. WHAT.

--Backing up a bit, Swamp Demon's fear was totally believable.

--And here we have our first taste of what kind of villain Muzan is--a simple one, who really, truly, blatantly has no regard for anyone around him, showing zero hesitation in causing a major distraction. That's really his whole character right there, the fact that he never develops plays in perfectly with how he believes himself to be a perfect being already.

--Other note, I love the bright character lighting used in the nighttime Asakusa scenes, and they feature prominently the building upon which Uzui stands in the Yuukaku opening! I'll be reblogging that nerd post as I get into Yuukaku, but suffice to say here that they put a lot of effort into the time period accuracy of Asakusa.

#kny rewatch #my art #kamado tanjiro #kamado tanjirou #kibutsuji muzan #rei #rei's daughter

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saffron0v0 · 10 months

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Future hashira au where tanjiro isn't a demon, I've been daydreaming about how the plot would go and I'm loving how it sounds in my head so hope someone enjoys it!

Explanation of the au→

So basically, muzan had made a plan C before the final battle, (he's a tinge bit less arrogant in this au) he wanted to make sure that even if he couldn't escape from the demon slayers in time, he could still live on, and conquer the sun. It was all planned from when he saw through hantengu the earrings and nezuko, he would get into tanjiro's body, add the property of sun immunity to his blood, and then transfer his soul telepathically to his 'daughter'. Apparently, muzan made her to be the perfect vessel for his blood, and placed some of it inside her, but didn't fully turn her into a demon, she does get nauseated at human food sometimes but she's still capable of eating. She doesn't have demonic powers, because all of the blood is stored in side a small part of her brain that muzan can control effortlessly (i.e not much power needed so even if Tamayo poisoned him, he could still do the blood manifestation, she did poison him by stabbing him early on with her poison and was taken away by one of the hashira, and sent to the farthest place she could get, far from the dk's reach), on a telepathic level. What happens when muzan proceeds with the blood manifestation is as the following >

1. The daughter becomes a demon

2. She is basically muzan but in a child body

3. His original body is rendered lifeless

4. Muzan's soul is transferred to the

daughter.

5. The daughter is now partiality immune to the sun and practically almost invincible, unless you cut up all of the atoms in her body, which is some yoriichi level stuff. Another option is the antidote, which is the option they'll most probably use.

In this au, he managed to get close enough to tanjiro and poured himself into tanjiro when he just barely joined the battle, so tanjiro isn't poisoned and didn't lose any limbs yet. So he does what he does, and fully transitions into his daughter, with his wife waiting expectantly. She's a powerful demon in this au, she got turned a while ago, muzan making her an experiment, and when he found her blood demon arts useful and rare, he suggested a marriage, she consented but muzan would have done it anyways. He told her of the plan and it all worked thanks to one of her blood demon arts that helped store the blood in the daughter's brain. She wasn't actually their daughter, she was an orphan they raised to keep the facade of a happy family.

The 'wife' was kibitsuji tamaki, she was a beautiful woman of mysterious background, no parents, no siblings, no relatives. She was the perfect spouse, she had no real friends and never stayed in the same place, so no one knows too much of her existence, she had no morals and pride, she played dirty just to survive, but was loyal to those she deemed worthy and powerful. She was power starved and a liar, and she knew that. She loved and mastered the art of manipulation, she always had a smile on her face, never feeling remorseful of her actions, she was almost as much of a monster as muzan.

What a match made in hell.

Back at the battle field, everyone is confused as quack and no one has an idea of what the heck just happened. They were still in the dead of the night, 2 hours away from dawn. Alot of the hashira were gravely injured, muzan wanted to wipe out the supposed strongest out of spite, and everyone was a lot more injured, especially Obanai, he was deflecting all attacks sent his way, AND any extra attacks on mitsuri.

The hashira that died are as follows >

1. Kocho, cause of death > douma being disgusting

2. Himejima, cause of death > blood loss and demon slayer mark

3. Tokito, cause of death > split in half like a mozzarella stick

4. Iguro, cause of death > grave injuries injuries and blood loss

Mitsuri survives because the amount of damage she got was big but treatable. She had broken arms and 3 broken ribs, a concussion, and a slash that just barely missed her chest, and several bruises and cuts across her body.

Iguro does confess, and she reciprocated, but he went limp after uttering his confession of love. Mitsuri screams for him to wake up and continues to ball her eyes out, loudly confessing her love and begging him to stay with her.

The kakushi weren't expecting to be called until at least an hour later, but they were able to appear as quickly as possible.

Tamayo hears of the news, and is pissed.

She screams and curses at kibitsuji for what seemed like forever. She had to eventually leave with yushiro and return back to the butterfly mansion.

Everyone is taken for treatment, tanjiro has all of his body parts intact, kanao didn't have to use the antidote, since muzan left his body almost instantly. Tanjiro's wounds were all healed, so he doesn't have any of his scars anymore.

Since zenitsu, inosuke and kanao didn't engage too much into battle, they're in condition where they can fight again, after getting rehab and a lot of rest to heal.

Aoi and senjuro would be picking up their blades and going into battle in this au, and they're besties in my au fight meh if you disagree.

This is the au main plot, the mini skits and drabbles will explain what happens later. Hope this is a good plot, I worked so hard on the idea, and I can't believe it came out well, it actually kinda makes sense! I'm so proud of this!

Link To other posts related to the lore ➜➜➜

Muzan leaving tanjiro out of context

The beginning of the therapy arc

Random drabble (platonic inoaoi)

Taisho secret

1st patient:Shinazugawa Sanemi

2nd patient:Agatsuma Zenitsu

Sanemi gives mitsuri 'good' advice

Mitsuri decided to cut her hair as one last goodbye

I wrapped up the entire therapy arc into one post

2-3 weeks after the battle

Shinobu's loss' affect on aoi, yes, I am biased.

Kanao's character development (I have no idea if this is development though)

Aoi's exposure therapy (first post on my new blog @saffron-rose

Sayaki's character info post (it's long overdue lol)

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encantadiafan12 · 1 year

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Draco Malfoy x Nezuko Kamado’s twin-sister! Slytherin! Muggle-born! Reader (feat. Muzan Kibutsuji x Nezuko Kamado’s twin-sister! Slytherin! Muggle-born! Reader; Good ending)

Angel of Darkness Au part 2: A witch's anger 🔥

Warnings: Mentions of Death, neglect, torture, use of protego diobolica and attempted murder

(A/N: Crossover with the current timeline and Muzan of the alternative timeline feelings towards Y/n is only one-sided.)

The Slytherin lady and the chosen one were lock in a ferocious duel however being trained by her father at a young age she easily overpowered Harry. She later apperated back to where her pathetic excuse of a brother was. It continues as they were trying to kill the man she saw earlier, but oddly strange he is not easy to kill.

Y/n then sees someone she hasn't seen in a very long time. Her duel against Harry was almost an hour. She recognize her sister who is about to turn back into a human approaching for their brother. The Slytherin lady then flies to her into a black mist. Through those moments Nezuko was turning back into a human from her gaining the memories when she was a demon. Her memories when she was human. The night Muzan Kibutsuji killed her mother and her other siblings while Tanjiro is away. She later regain back her identity. When this happened, Y/n appears in front of her while her twin looks in shock. “Y/n??” she asks as the Slytherin lady smirks. “Hello, Nezuko...” she says in a monotone.

While this is going on. Tanjiro, the Hashira, and Tamayo then continue to fought against Muzan. The Demon King was far too strong. With Y/n and Nezuko with the Slytherin girl then pointing her wand at her. “Tanjiro can say goodbye to his precious favorite sister....” she then says as she was about to cast a spell. That is until she hears a the sound of a biwa as diverts her attention towards where her pathetic excuse of a brother was. Shoji doors were at the bottom of him and everyone. They some them open making each slayer fall and of course Muzan and Tamayo. Nezuko scream calling out to their brother while the Slytherin lady smirks before turning into black mist following them. This is going to be interesting however what she didn't know Draco and Harry witnessed everything unfolded as they were surprise as they decide to ask help from someone but not somebody back in their home dimension but rather those from a different timeline. They then made their way to the gate way leading to the alternative timeline.

5 minutes later....

They found themselves on America?! The Wizarding World in this country is more strict back on England. They found themselves at a mansion. Harry and Draco say two figures the first being similar to their Y/n except she seems calm and the other similar to the man they saw from before except he has white hair. The two then notice them as the Slytherin lady's look alike look at her in surprise. “Potter, Draco I didn't expect you would come around here.” she says as the man beside her glares daggers at the blonde Slytherin as if he wants to kill him. Y/n then notice this as she narrows her eyes at him. “Dear, no....” she says in a warning tone.

He then huffs as he crosses his arms. The Slytherin lady sighs. “Sorry, about my husband. Draco, you shouldn't have come. You knew how much Muzan wants to kill you.” she then carefully says as the two look at them surprise. Wait? The man who stand right beside her was her husband in this timeline and not to mention he wants to kill Draco’s counterpart in this timeline. For what reason?

Harry then clears his throat. “Actually we are not the way you know. We are actually from another timeline and we need your help.” he says as this time Y/n and Muzan are surprise. The Slytherin lady then read their minds while the former Demon King then sniff them to see if they are telling the truth to which they are. The chosen one and the blonde Slytherin start to explain about the timeline they came from to which Y/n and Muzan frown. “A timeline where father died and I gotten crazy trying to kill everyone in mine and my husband's home dimension. Just to make them feel the pain I felt.” the Slytherin lady then says as her husband hums. “So in your timeline I was one of the people that my wife's counterpart wants to be killed. Well, that's strange and a bit upsetting.” he says as he refers to the last part that his counterpart didn't knew Y/n. “We only need your help, Y/n. In other to stop the version of yourself from our timeline on what she was doing.” Draco then says as he looks down. “We also need your father's help as well. I know he's the only one who can calm you both down when you're angry.” Harry adds as the two were surprise. “You need mine and my father's help?” The Slytherin lady then questions as the two then nod. Y/n sighs before they then took a portkey to England. Pretty much they appear at the forest when no one could see them. When they came to the location they arrived at Spinner's End.

The former Potions Master then notices them. “Y/n, Muzan...” He says a bit surprise to see his daughter and son-in-law. He later notice Harry and Draco. “You and Draco as well, Potter.” Severus then finishes as he crosses his arms. The Slytherin lady alongside with her husband looks at him. “Dad, we need your help.” she then says.

They then explain to the former Potions Master about what's going on. At that Severus cross his arms. “So in this alternative timeline. I died, Y/n’s counterpart wanting to kill the people in her and her husband’s home dimension. With my son-in-law’s counterpart not knowing my daughter and of course was one of the people she wants to kill.” he then says as slowly starts taking the information that he was given. “Figuring that my daughter's counterpart wouldn't be able to calm down if it was herself trying to understand. Well, she seems to calm down around me.” He then adds. The chosen one then looks at him. “Will you help us, sir? We can't risk of losing her.” he pleads.

The former Potions Master then thought for a moment before he then sighs. “Alright, I'll help you.” he then answers as that made the two males look relieved that Snape of this timeline is able to help them. Muzan then looks at his wife. “Are you sure you don't want me to come along?” he asks as he holds her hands. Y/n then gives him sad look. “I really want you to come but we couldn't risk about your other self to know that you were my soulmate and the part that were married. As we know our counterparts don't know each other.” she then says as Muzan sighs they have a choice. “Alright, but promise you'll come back safe.” he says. “I will. I promise.” the Slytherin lady then says.

Afterwards, they then open the gateway to the other timeline. The former Demon King hopes that his wife would be safe. To where Y/n’s counterpart was, they then end up in a place that has a lot rooms and shoji doors everywhere like a big maze. Harry was surprise to know that the Slytherin lady he knew would follow her brother here. As they then observe from a far to see Demon Slayers attacking Lower Moon Demons at easily cutting off each Demons head. From a far they also Y/n (Bad ending) torturing a Demon Slayer who dare stand in her way from making her brother suffer the pain she felt.

Y/n (Good ending) and Severus have invisibility cloaks around them to avoid anyone from knowing that they are around. Throughout each battle in the Infinity Fortress, the Slytherin Lady (Bad Ending) attempt to kill everyone but she was thwarted by unknown to her (her other self from another timeline). However, unknowingly the Demon King saw her every attempts but he wasn't mad. Quite the opposite he knew she wants to kill Tanjiro to make him regret for sacrificing her to save himself and his other siblings.

After each, Upper moon was killed but Nakime and Kaiguku are the last of them. However, Y/n (Bad Ending) continue her attempts to kill everyone but she was still thwarted. Her several attempts made Muzan feel something he hadn't felt before. He somehow found himself falling in love with the Kamado’s so-called black sheep. Not only those attempts to make everyone suffer her pain that she felt. The Demon King was later confront by Tanjiro and Giyū. “Persistent.” He then says not feeling any regret for killing a lot of innocent people. “You’re all seriously persistent. And it bores me.” He adds as the that stun the two Demon Slayers. “It sickens me from the bottom of my heart. Whenever you open your mouth, you only remember that one dumb motion about avenging your parents, kids, or siblings.” Muzan later admits as Tanjiro still looks stunned by what he's saying. “What are you saying?" He then asks at the Demon King look at him. “Look at it this way, being killed by me is the same as encountering a great calamity. You can't get revenge on natural disasters. No matter how many lives it takes away, rain, winds, volcanic eruptions, and earthquakes. You don't need to think hard about it.” He then says as the two Demon Slayers just remain silent. “You can't bring dead humans back to life. Why not stop fussing over this issue all the time and quietly live to earn your daily wages. Why can't you do that? Most humans live that life. The Demon Slayers are an assembly of deviants. There's only a reason and I'm tired of dealing with deviants. I'm the only one really wants to put an end to all this.” Muzan then says. There was a long period of silence. Before Tanjiro could says something the three of them were interrupted when someone cackle. Black mist then came around and stood in the other side of the room it later then morph to Y/n (Bad Ending) as she looks at the three of them with her eyes narrowed. The Slytherin lady (Bad Ending) then looks at the Demon King. “You have no shame. To me losing my father even though we aren't related by blood. He treated me decently and some people in the Wizarding World too. I no longer return to this world considering on how greedy, arrogant, and selfish they are towards me. Just taking things for granted.” She then rants before looking at her pathetic excuse of a brother. “Since the day I was sacrifice. I was really a fool to wait you, the rest of our so-called ‘family’, and everyone else to notice me but only paying attention Nezuko. That day change everything for me. Throughout the years I was living with my father, the hate I felt towards everyone here continue to grow. When Dad was still alive I have no intention to return here to get revenge on everyone. Even though, I've been familiar with the Unforgivable Curses and the Dark arts spells he taught me. I've only used them when necessary.” Y/n (Bad Ending) then says as the three look at surprise.

The Slytherin lady (Bad Ending) then narrows her eyes. “Vengeance is mine. You and Nezuko don't deserve to live a peaceful life...” she then says to Tanjiro.

Giyū then looks at the burgundy-haired boy. “Keep your guard up.” he then tells. Y/n (Bad Ending) was about to cast a spell before somebody disarm her wand like earlier. The daughter of Severus Snape (Bad Ending) then growls to see who did it. The person then remove the invisibility cloak. She and the other three were surprise. It was Y/n (Good ending), Draco then came around. “You really need to stop. I know what you're feeling right now. But, father's death really affected you to the point you want to get your revenge on everyone here.” The Slytherin lady (Good ending) then says as her other self then grit her teeth. “Nice try, Harry....” she then says. Y/n (Good ending) then sighs. “You really think this is someone under the guise of polyjuice potion but I am actually you from another timeline.” She then took a pause. “A timeline where father is alive....” The Slytherin lady (Good ending) says that made double then pick up her wand as she kept her head down. “A timeline.... Father is still alive, huh? Well, that's something is going to make me mad here.” she then says as she looks up. The blonde Slytherin then looks at her. “Y/n, you need to stop what you're doing. This isn't the way...” he then says. The Slytherin lady (Good ending) then stood next to him. “He’s right you need to stop. Revenge is not going to make you feel better. It's just going to make things worse.” she then says.

Tanjiro then slowly walk up but he maintain his distance from his other younger sister. “Y/n, please you have to stop this." He then says as the daughter of Severus Snape (Bad Ending) then glares at him. “Well, I would be with you right now if you were to treat me decently. But none of you never deserve my forgiveness and kindness.” she then says before then places her hand against the bottom of her left eye. “I got this scar because of you that day and of course the hatred started to grow there. So I have a hard time trusting anyone except some people.” Y/n (Bad Ending) then rants.

The Slytherin lady (Bad Ending) then continues to glare at her brother. “Ever since, father adopted me. I only felt resentment towards everyone here in this world. I take a lot after father but I never let everyone’s words ruin me but unlike you. I have friends and people who care about me for who I am. Severus Snape was my father and having the same filthy blood as you and Nezuko make me hate other Muggle-borns at school. I disregard the Kamado last name and embrace the surname Snape. Everyone in Slytherin like being around me despite my status as a Muggle-born as I'm different from the rest. Everyone (except Pansy Parkinson).” she then adds as her brother keeps his guard up but he was ridden with guilt on the inside.

The Demon Slayer stares at his sister. “Y/n” He calls out as he feels the guilt of ignoring his beloved sister. “I'm sorry” He says making his sister scoff. “Your pleadings are no use to me now.” She says bitterly.

Draco then narrows his eyes at Tanjiro. “No matter how many times you apologize to her. It's not going to work. You really don't know her as much as I did growing up with her.” he then says. He then the others later here huff as they look at her. “Do you know me, Draco? Well, you don't know much about me.” she then says as the blonde Slytherin looks at her worriedly. Y/n (Good ending) knew that the thought of losing her father horrifies her, but in her timeline she was able to save him on time. However in this one she didn't. That's the reason why her other self was desperate to take her revenge on everyone in the dimension she originally came from.

“It may escape the notice of all of you. But life is unfair.” The Slytherin lady (Bad Ending) then says as she looks at the Demon King. “Life is not the way as we see it as there are times things go out of our control. Life is cruel. Fate is cruel. It's not always we get what we want.” she then adds as it seem to anger Muzan but it didn't but he was rather stun instead of being angry which never happened before. “She really takes after her father.” The blonde Slytherin then mutters. Y/n (Good ending) then gives her other self a sympathetic look. “Father’s death really affected you....” She says in a sad tone as the Slytherin lady (Bad Ending then turn to look at her. “You have no idea.....” she then says. Giyū then looks at her. “You need to stop this stupid revenge as it wasn't worth it.” he says as that anger the daughter of Severus Snape (Bad ending). The Slytherin lady (Good ending) sighs as she narrows her eyes at the Water Hashira. “You are not helping. It only made it worse.” she then says as her other self seems angry. “Stupid? Stupid?! What's so stupid about to make everyone in this world to feel the pain I felt?!” she then snaps.

Draco knew he had stop her. “This has to stop now. What ever it is you're going through. We'll fix together, me and you. Just like we've always done.” he then sang as that made Y/n (Bad ending) look at him. “No! This has to stop now. This thing where you think that you've been my friend. And don't even hear how you condescend. The way you've always done.” She then sang not wanting to listen to her childhood friend. The burgundy hair has to do something. “Y/n, listen.” he then starts. “I’m listening.” She then answers when her brother does it. “I know it isn't true.” Tanjiro then sang. “Isn’t it?” She mockingly questions. “Just look into my eyes now.” he then sings as his sister avoids looking at him. “Well?” she then says. “I know you feel it too.” The burgundy-haired boy then sang. “Perhaps I do.” she then sings as she looks at him coldly. “Y/n, listen.” Tanjiro then sings. “I’m listening.” she then says as she crosses her arms while rolling her eyes. “I swear it's not too late.” He then sings while keeping his eyes on her. “So before another line gets crossed and everything we've had is lost. Just.... wait.” He sings as the word ‘Wait’ made her to immediately look at him in disbelief before she frowns. “No, I won't wait.” she mutters before Y/n (Bad ending) then proceeds walking in between her pathetic excuse of a brother, Water Hashira, and the Demon King. She then looks at Tanjiro and Giyū. “There’s a line between the winners,” she starts before looking at Muzan. “and the losers.” she finishes before turning to look at her other self and Draco. “There’s a line between the chosen and the rest.” she then sings as she looks to the side. “And I've done the best I could, but I always known where we stood.” she then sings before looking down at her shoes. “Me here with the luckless.” The Slytherin lady sings before she then looks at her brother and the Water Hashira. “You there with the blessed and line between the beggers and the choosers.” she then sings before she turn around to face the Demon King. “Is a line you've never let quite ignore.” she sings then looks up at the ceiling before reaching out with her hand. “How I've tried to jump that great divine but I've never got the chances you were given.” she sings before turning to look at Tanjiro once more. “You don't how much I've been denied. Well, I'm not being patient anymore.” she then sings before she raises her arm with her wand in her hand and casts the spell which is just as dangerous as Fiendfyre. The Protego Diobolica spell. “I’m crossing the line!" she then sings as her other self proceeds to fire a spell at her but she dodges it. “And I'm done holding back. So look out, clear the track. It's my turn!” she sings out loud. Before she creates a circle of blue flames before she proceeds to make them flow along with her movements. “I’m taking what's mine!” she sang before looking at her brother before firing a spell at him but he manages to dodge it. The Slytherin lady (Bad ending) then looks at the Demon King before firing a spell but he manages to dodge it. “Every drop, every smidge. If I'm burning a bridge let it burn!” she then sings before she flies up surprising the three (except her other self and Draco). “But I'm crossing the line!” She then sings as she turns to look at them. “And for us, if we're over. That's fine!” She then proceeds to leave. “I’m crossing the line.” she then sings as she looks at them before she then flies out of the room into black mist.

Y/n (Good ending) was surprise as she knew that she did master this spell but she rarely use it. The blonde Slytherin looks surprise before he then looks at her. “We have to get out of here.” he suggests as he could see that Muzan then proceeds to leave the room. To which made Tanjiro yell after him as he and Giyū go after him.

Timeskip hours later....

Kaigaku was killed along side with Nakime. The Infinity Fortress collapse as everyone immediately leave when Yushiro tried to turn it against the Demon King as the battle of between the Demon Slayers and Muzan Kibutsuji continues. Nakime was killed in the hands of her master. However, a certain someone knew she had to immediately kill everyone. Y/n then was about to cast the killing curse at her brother while he was fighting against Kibutsuji. Her other self, Harry, Draco, and Severus knew they had to stop her. The chosen one had been involve of thwarting most of his friend's attempts. Tamayo was killed when she sacrifice her life on letting Muzan absorb her to which he absorb the drugs to weaken him.

Severus then casts the patronus charm non-verbally as seeing his patronus would calm his daughter's counterpart. When he did the patronus came out in the form of doe. It immediately made it's way towards her but when it passes through the remaining alive Demon Slayers as they seem shock. When it whirl around the burgundy-haired boy and the Demon King which surprise them as they along with everyone else watch as it then made it way towards Y/n (Bad ending) as she then stop as she immediately put her wand down seeing her father's patronus.

The former Potions Master then took off the invisibility cloak as he came to approach his daughter's counterpart as Y/n (Good ending) watch as her father approach her other self as she watches the scene. When he finally did, the Slytherin lady (Bad ending) fell on her knees as she doesn't know whether or not is she seeing things. D-Dad?” she then questions in a quiet voice.

Severus then has a soft look on his face. “Revenge is not the answer, Y/n. It just will make the pain worse, sweetheart.” he tells her as he kneels down to hug her. When he did, she her arms around him to which she later breaks down crying. The former Potions Master was rubbing the back of his daughter's counterpart. “Even though the me you knew was dead but I have a feeling he forgotten to tell you something.” he says in a soft voice as Y/n (Bad ending) looks at him. “Even though, I'm gone. I'll always be with you no matter what. In your heart.” he says as the Slytherin lady (Bad ending) look at him. Everyone else watch as the moment unfold. Tanjiro was surprise this man was Severus Snape. The one who raised his sister after she disappear when she was 5 years old.

Harry and Draco were relieved that she finally stop. The blonde Slytherin then made his way towards the two. Severus then pull away before then wipes Y/n (Bad ending)'s tears with his hand. The former Potions Master then notice Draco was there so he stood up and move to join his daughter of his timeline while the Slytherin lady (Good ending) watch her other self and the blonde Slytherin. “Y/n, I was worried if you don't stop. I would ended up losing you.” he says as his childhood friend look at him in shock. “Dray, I....” she was interrupted when Draco hug her. “I like you, Y/n Snape. No love you, for a long time ever since when we we're kids.” he confesses as Y/n (Bad ending) looks at him surprise. “I.... I.... I love you, too, Draco malfoy.” she then confesses to him. At the confession between the two. Muzan can't help but feel jealous run through him while the burgundy-haired boy could smell the jealousy coming from him.

Severus who is watching then gives Draco a warning look. The blonde Slytherin then felt it before he sweat drop. If his godfather of his timeline is still alive he would have give him a warning as well. Y/n (Good ending) sighs at her father's behavior before giving her other self a proud smile. In the timeline, she never knew her husband. Speaking of him, Muzan’s counterpart then look at her. She just gives him a soft yet sad smile. The Demon King's face turn red at that. Y/n’s alternative self just smile at him as if she knew him.

The two then pull away as the blonde Slytherin then help the Slytherin lady (Bad ending) stand up. When he did, he pulls her into a kiss to everyone's shock which broke Muzan's heart. Y/n (Good ending) was happy for her other self as she saw the surprise and pale expression of her brother's counterpart. She narrows her eyes at him. “You really should know that she did have feelings for Draco. I did as well..... However, used to.” she then admits but she's not giving hints that Muzan of her timeline was the one she ended up with.

The new couple later pulls away from one another. Draco then smiles at her to which Y/n (Bad ending) smile back at him. She then looks at her brother before she narrows her eyes at him. The Demon Slayer then looks at her. “Y/n, I-” he stop when his sister raise her hand. “Well, getting my revenge on you and Nezuko is not worth it to me anymore. I'm going to continue to live for my father's sake and I would no longer return to this dimension to remain in the world where I belong.” she then says rather coldly at him as Tanjiro and everyone else (except Draco, Harry, her other self, and Severus) were surprised. “Y/n, please....” the Demon Slayer begs as his sister then continues to glare at him. “You did this to yourself and you realize it when it's too late. But as I said earlier, life is unfair. Fate is cruel. It's not always we get what we want. Life is not the way as we see it as there are times things go out of our control. I hate to tell you, but this has to be the way it has to be.” she then says. The Slytherin lady (Bad ending) then looks at her lover and of course Harry. Not before turning to look at her other self as she gives her a grateful smile before she then disapperate with Draco and the chosen one.

Y/n (Good ending) alongside with everyone else watch as they leave. At that moment Tanjiro realize he lost his sister. Forever. The Slytherin lady (Good ending) then open a passage way to her home timeline as her father later walk up to her as the remaining Demon Slayers, Muzan, and her brother's counterpart look at her but she just narrows her eyes at him. Before they both enter the portal afterwards it closes after they left.

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