1 - 20 of 467 Works in Upper Demon Moons Ensemble (Kimetsu no Yaiba)
Navigation
Listing Works
-
Moon Lovers by SimpsForVillains
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga), 原神 | Genshin Impact (Video Game)
07 Dec 2025
Tags
Summary
Ever since Muzan was born , the doctors had predicted he would not live past 20 years old , though his family tried every means to help him conquer this illness it was of no use , realizing nothing could be done they decided to get him who was 10 years old engaged to a business partner daughter Columbina who was the same age as he was, at first Muzan was reluctant to get along with her but soon grew to like her .
As Muzan grew older , he began to fear dying and leaving Columbina alone but his hope rose when a mysterious doctor claimed he could cure him , after taking the cure Muzan became a demon and Columbina who decided to support him had also drank the cure turned into demon. -
THE GAME: Unraveling the Cosmos by TGNovice16
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga), Hazbin Hotel (Cartoon), Helluva Boss (Web Series), Sonic the Hedgehog (Video Games), Venom (Marvel Movies), Marvel Cinematic Universe, 今際の国のアリス | Imawa no Kuni no Alice | Alice in Borderland (TV), 呪術廻戦 | Jujutsu Kaisen (Manga), 呪術廻戦 | Jujutsu Kaisen (Anime), Cyberpunk 2077 (Video Game), Cyberpunk: Edgerunners (Anime)
07 Dec 2025
Tags
Summary
A rift in reality has merged worlds that should never have met. From manga pages to game screens, iconic characters are trapped in a hostile, unknown dimension.
In a game of survival where trust is scarce, they must look beyond the fighting. Who is pulling the strings? They must expose the mastermind behind this 'Dimensional War' before the rules of the universe are rewritten—and their worlds erased forever. -
【授权翻译/义忍】Wisteria Grows 紫藤花开 by cissyshawn
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
07 Dec 2025
Tags
Summary
中文摘要：
刀匠村遇袭已过去数月，无惨直到此刻都始终未采取下一步行动。
当柱们开始逐一失踪时，人们都推测他们已不幸遇害。相较于另一种结局——那比死亡本身更可怕的命运，战死这已是万幸。然而，所有线索都指向他们昔日的同伴已投靠无惨，胡蝶忍不得不直面一个可怕的可能：她或许就是下一个目标。
21岁组成为上弦的if线
lofter文章同名本文为授权翻译，特别感谢原作老师@tomiokagiyu 的授权
原文链接指路：https://archiveofourown.info/works/54230113/chapters/137326336 -
from the edge (a KNY roleswap au fic) by artsbyryn
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
06 Dec 2025
Tags
Summary
For every universe, there is an alternate where things are the same... But different. In this world, Kamado Nezuko and Tanjirou are twins who share the Hanafuda earrings. When Tanjirou injures his leg one day, Nezuko takes the charcoal down the mountain in his stead. She returns to her family massacred, and her twin brother turned into a demon. Together, Nezuko and Tanjirou must slay all evil demons in order to find a cure for Tanjirou's condition. Along the way, they'll meet unexpected friends and overcome the darkness.
Periodically updated, author works a full time job. All art is by the author, artsbyryn. -
Break the Ice by Leoncillo
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
06 Dec 2025
Tags
Summary
Nonbinary, chronically ill reader gets sent into the Demon Slayer world after wishing on a star for love. Maybe they should've been more specific? While on the search for answers, reader tries to improve the lives of the characters they meet.
Demons in this are more animalistic (marking, mates, etc.) and have their own culture and customs and traditions similar to @itshauntedtoon3's Demon Bride.
I'll try not to use gendered pronouns or too many descriptive words, but the MC is described as having breasts and a v and is Black.
-
wisteria grows by tomiokagiyu
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
05 Dec 2025
Tags
Summary
Several months have passed since the attack on the Swordsmith Village, and Muzan has yet to make his next move—until now.
When the Hashira begin disappearing one by one, they’re presumed dead. It is better than the alternative, a fate worse than death itself. But as all signs point to their former comrades joining Muzan’s ranks, Shinobu is forced to reckon with the terrible possibility that she might be their next target.
-
Secrets We Keep by Lilooloo
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
05 Dec 2025
Tags
Summary
What if Demon Slayer took place in modern Tokyo?
By day, Muichiro Tokito is an ordinary university student. By night, he’s Hashira, carrying out the ruthless duties of the Demon Slayer Corps.
But somewhere along the way, he forgot the most important truth — that he is human, not just a weapon. Everyone searches for happiness. Why should he be any different? -
Their Reborn Akaza: Various Yandere Modern Demon Slayer X Reborn Akaza by TheYandereSpecialistEPICNESSQUEEN
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
05 Dec 2025
Tags
Summary
Akaza Soyama is reborn into the modern age, and his life is a bit similar to his last. His father died due to illness, and he was in foster care until his adoptive father, Keizo, adopted him at age ten. He is now in nursing school.
His life changes when he meets a demon named Doma. The Demon Claims that he loved Akaza. He was saved by A Demon Slayer. Who claimed to know Akaza, too.
This is when Akaza's life Changes with Reborn Demon Slayers and Powerful Demons falling into Obsessive Love with their Reborn Akaza!
(Aged Up/Modern Setting AU, There was never an Infinity War Arc, Muzan and His Upper Moons still run around. Akaza killed himself when he remembered his past, which came from Rengoku.)
-
Yandere Demon Slayer Book 2: Headcanon and Scenarios by TheYandereSpecialistEPICNESSQUEEN
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
05 Dec 2025
Tags
Summary
Second book of Yandere Demon Slayer Characters X Demon Slayer Characters or Readers or My and my co-author OCS, rules in the first chapter!
Yandere Headcanons, Yandere Scenarios, and Very Rarely Yandere Oneshots!
I love shipping everyone with Uke Akaza, Uke Aged-Up/Adult Tanjiro, and sometimes (when not topping Akaza) Uke Rengoku, and Uke Aged-Up/Adult Genya!
Ships are accepted, characters can be genderbent or aged up!
Series
- Part 2 of Demon Slayer Yandere Book Series
-
The Raging Storm: The Past by DemonHeart12
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
04 Dec 2025
Tags
Summary
After having All Might crush his dreams and getting tired of constant abuse from everyone around him, Izuku decides to take Bakugo's advice and takes a swan dive off the roof...
Only for him to wake up in a world full of demons where people have to defend themselves using a sword. Follow Izuku as he learns how to become a demon slayer and gain allies along the way as they all work together to defeat their enemies.Series
- Part 2 of The Mulitverse of Deku
-
The Miscellaneous Adventures of High School Teachers by Neo_Grass
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
04 Dec 2025
Tags
Summary
Kanae: he’s not a psychopath
Kanae: he’s just a little gay
Shinobu: he was definitely a psychopath
Giyuu: Karl told me that he says if he had to survive on human flesh as his only source of nutrition then he’d only eat women because they would be more nutritious than men
Sanemi: right so you did not have to tell us that
Giyuu: i thought it would add to the discussion
-
Upstream by 00Cat00
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
04 Dec 2025
Tags
Summary
The last thing Giyū saw was the horrible creature known as Muzan crawling away to another part of their quickly crumbling world, taking the hashira who could still fight with him, and the bodies of those who no longer couldn't, behind him. Giyū was the latter, trying to stand up even through the sea of blood at his feet. He was dying.
Why was this happening? Wasn't the slayer mark supposed to boost his survival?
Turns out, it did. Maybe a little too well.
Fate had once again chosen the wrong person to save, Giyū thought, back in his thirteen year old body, staring at his dead childhood friend right in the face. Tanjiro would have been so much better at time travel.
CONTAINS SPOILERS FOR END OF DEMON SLAYER
-
A Caged Lily by DangoRabbit
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
03 Dec 2025
Tags
Summary
Nezuko's life couldn't be any better. Her father was recovering from his chronic weakness. Tanjiro was in a great mental state. Life couldn't get any better. However, one night, while her father and brother are gone, a stranger comes who changes everything
Series
- Part 1 of Caged Lily
-
THE DARK KINGDOM by Salome_Hartmann
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
03 Dec 2025
Tags
Summary
In a dystopian Japan subjugated by the ruthless rule of demons under the emperor Kibutsuji Muzan, the Mazoku Era has transformed the archipelago into a nightmare of iron and blood. Cities, choked by toxic fumes and oppressive laws, are divided between the opulent districts of demonic elites and the squalid slums where humans toil to survive. In a world where hope seems extinguished, a flicker of resistance endures, carried by broken but determined souls.
Muichirō and Yuichirō Tokitō, twin brothers scarred by tragedy, struggle to survive in the underbelly of Kuragari-shita. Their lives, defined by grueling labor, hunger, and fear, are upended when they come into possession of a dangerous secret—a legacy from a mysterious warrior that could alter humanity’s fate.
Amid the intrigues at the pinnacle of Edo’s Tower, the gratuitous massacres and abuse of demons, this story probes the resilience of the human spirit in a world where survival demands sacrifice. Muichirō and Yuichirō must choose between submission or reigniting the flame of a free future.
-
Tags
Summary
Genya spent years believing Aizetsu loved him. That his isolation was safety and something of his own making.
Until he knew he had to get away because he was caged with a monster.
Leaving someone like Aizetsu isn’t easy, not when he’s a government-protected genius with full control of your life, your records, your identity.
Genya thought leaving was the hard part. He was wrong.
-
kny tweets !! by R4D1KAL
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
30 Nov 2025
Tags
Summary
here's some kny tweets ive made, the tags have all you need to know basically. they'll be updated as i make more.
i have these posted as actual images to a tiktok dedicated to just kny tweets, it's @kny__tweets..edits
small edit, i no longer have access to that tiktok account & i don't post these to tiktok anymore. so they will only be posted here !! (i do post some of these to my tumblr, but hardly)
the upload schedule isn't active rn, posting may be random and may take a few days for a while.
Series
- Part 1 of R4D1KALs tweet aus
-
Moiety by Kilekim789
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
30 Nov 2025
Tags
Summary
‘Fear’ knows no face but the face of Kibutsuji Muzan.
Muzan, who reigned over the darkness, who fed from the terror that soaked human hearts, who drank the blood that chilled from knowing a force that was more frightening than death itself.
Muzan-who was afraid…of his own demons.
-
KnY(demon slayer/ Kimitsu no yaiba) if my OC was in it! by Essie_Dee
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
29 Nov 2025
Tags
Summary
-"Infinity castle... No escape... my childhood self would have said... But I'm out... As a slayer... Working to annihilate the very being that raised me..."
_Raised as food in the infinity castle... with many other girls and boys... Blood too powerful to go to waste... Yet... It did... And one can't say they didn't deserve it..._
-Having been living in the infinity castle since she was a baby, all the way to a twelve year old... She had known, or thought that she was going to die, raised with other girls and boys with blood capable of boosting a newly turned demon to lower moon level, they were raised to be healthy, fit, and nutritious individuals, to be eaten...
-
Your Blood In My Fangs by Lumenati
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
29 Nov 2025
Tags
Summary
“You’re dying,” Tanjirou whispered, in disbelief, in misery.
“Let it happen.” Eternal damnation could claim him if it meant freedom from this thirst.
“No,” Tanjirou forced the inside of his wrist between Giyuu’s lips, under his fangs. “Feed.”
--
Centuries could not prepare Giyuu for a hunger that nearly drove him to death. It cannot be denied, and he craves it from the predator he longs to make his prey.
In a city ruled by vampires, the night will run red as a deadly new hunt begins.
-
Because Life Is Sweet, We Must Live by Himesama02
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
29 Nov 2025
Tags
Summary
"Kabito-san, kenapa kau membantuku?"
Laki-laki itu hanya menatap awan dan termenung sejenak lalu akhirnya memalingkan wajahnya ke arah Tanjirou.
"Ne~, Tanjirou-kun jangan merasa terbebani, aku melakukan ini untuk diriku sendiri".
Ia tersenyum—senyum yang tulus dan lembut. Jika biasanya orang mengatakan senyum Tanjirou seperti matahari, maka kali ini Tanjirou hanya bisa bergumam pelan dalam hati:
“Mereka harus melihat senyumannya Kabito-san.”Tanjirou terdiam, terpaku pada senyum itu. Sementara Kabito masih tersenyum, di dalam pikirannya versi mini dirinya sudah jatuh tersungkur sambil memegangi dada.
"Huaaa, Tanjirou sangat imut, bagaimana bisa ada anak seimut ini. Lihat matanya, pipinya mengembul dan juga cara hidungnya mengkerut. Ahhh, aku akan mati, bagaimana bisa ada anak semengemaskan ini. Aku bersyukur bisa datang kesini untuk melindungi semua anak-anak ku."