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Snowy's Mix Up!AU by Snowlyx
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
21 Dec 2025
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Summary
Essentially the Kamado siblings trade places with the Shinazugawa brothers. Main trio is the 21 trio. I ended up saving half the cast, so have that I guess. I'm not the first person to come up with this idea.
Main Inspiration: Taiko- Youtube, Lara-TikTok -
Children of Fuchsia Light and Demon Fire by LadyNightLark
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Kimetsu no Yaiba (Manga)
30 Nov 2025
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Summary
Nezuko could make out a green and black checkered hoari. She could see his red hair. She could see the scar.
Her throat burned with each gasp but she couldn’t yell out to him.
He fell to his knees. He looked toward the sky. He extended his arms.Someone pointed something sharp at him.
With speed she didn’t know she possessed, Nezuko lunged across the clearing and reached for her brother.And the world exploded into snow.
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When Nezuko comes home to her entire family murdered and her brother a demon, she must make a deal with a dangerous swordsman; become a demon slayer within two years or have Tanjiro killed. Follow Nezuko and Tanjiro as they struggle through this great endeavor and are faced with more than they bargained in this retelling of the manga and anime.
OR
A role-swap AU where almost every character is swapped. This changes some things.Update: Chapter 34, A Fallen Butterfly, Posted
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Trailing Footprints Made of Cinder and Ash by LadyNightLark
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
22 Nov 2025
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While Nezuko Kamado travels, she doesn't realize that not all fights are left without consequences.
See how the aftermath of her adventures leaves ripple effects on the places she's visited and the people she's yet to meet.
(Companion Piece to Children of Fuchsia Light and Demon Fire)
Series
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Our Hearts Bleed by Blixarchiviumofthoughts
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
10 Nov 2025
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The rain was soaking the back of Sanemi’s uniform; he didn’t realize that the umbrella was only covering half of him, as he’d made the most space underneath for Kanae. As she drew a deep breath, she noticed it; grabbing the handle, she pushed the umbrella back a little bit—and their hands touched.
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Sanemi and Kanae were meant for each other. Their love is born innocent and shy, yet growing more passionate each day; but then it gets really vulnerable. In a muddle of frustration and trauma, Sanemi must decide what's more important to him; and come to terms with the fact that his choices will permanently imprint on the lives of others. -
Sorrow & Contrition by MaarioNaharis
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
25 Oct 2025
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No amount of regret can change the past. For regret is the natural twin of wisdom. The only regret you'll have is not trying.
The tale of how young Sayo becomes a Demon Slayer, and her burning desire to pay back the man who saved her life.
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Second Chance AU by frekayratat
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
17 Oct 2025
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A second chance at the Infinity Castle for everyone who died, and some others?
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Summary
Genya's family was rich, but not happy at all.
His father is the problem, being the leader of an important Japanese mafia group.
Genya considers himself trapped in a golden cage.
This is the story of how this golden cage breaks.
Series
- Part 6 of SaneGen One-Shots💚💜🍃🔫
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It started with a cloud of hair by Sorayalia_milu87
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
02 Oct 2025
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Summary
She pulled her comb from the basket next to her, pulling loose hair away before taking a section of Sanemi hair and started brushing. Her brush would go down its plastic teeth breaking hair apart for her fingers to smoothly pass through. Sanemi continued to lay still, his body relaxed under her and eyes shut closed. Her purple gaze fell on him as she slowly pulled a knotted strand, he just frowned before he continued on sleeping.
Series
- Part 15 of Genya shinazugawa stories before bed
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Bro Where The Hell Are We? by Deadly_hedgehog
Fandoms: Terraria, 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
30 Sep 2025
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Summary
a demon slayer x reader story except the reader is from the world of Terraria specifically the Calamity mod. and probably fucks Sanemi's mom....Enjoy!
⚠️WARNING⚠️
°MAJOR CHARACTER DEATH
°BLOOD
° EXTENSIVE GORE
°SMUT(maybe)
AND MUCH MORE! You have been warned -
Before it's too late -English version by A_Nutcase
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
13 Sep 2025
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Summary
In an alternate timeline, a young Giyuu Tomioka is sent to a forgotten village to eliminate a demon that has been hunting in the region. Unbeknownst to him, this demon is the same one that would later turn Shizu—Sanemi's mother— into a demon. By stopping the demon, Giyuu changes the fate of the Shinazugawa family. In gratitude, Shizu invites him into her home, unaware that this small gesture will save many lives... and leave a mark on the heart of the future Wind Pillar.
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Tell the Flying Butterfly She’s Loved by missnostalgiclady for crusty_snail_juice
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
27 Aug 2025
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Summary
Tanjiro Kamado was Kanao Shinazugawa née Tsuyuri's first love. However, Genya Shinazugawa is Kanao Shinazugawa née Tsuyuri's last.
Still new to their marriage, Genya and Kanao have their ups and downs, and with a past love Genya feels in constant competition with, things don't look so good. However, every family has their problems, and Genya and Kanao can resolve their issues together. Besides, how can Genya be in a love triangle with Tanjiro Kamado & Kanao when it was always Genya who'd be the lucky one to have a shared future with Kanao?
The flying butterfly by the name of Kanao has been loved by many, not just by two lovers, but by the two families she's devoted herself to.
(You might cry, and that's to be expected because I made myself cry, too!)
(There is a minor love triangle involving Tanjiro Kamado & Kanao Tsuyuri & Genya Shinazugawa. Genya and Kanao are the end-game couple but that being said, Tanjiro and Kanao got together first. TanKana is loved in this story and so is GenKana. One pairing is not better than the other.)
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°Tengo que salvarlos a todos° by ErikaDayanaAmores
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
20 Aug 2025
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Kamado Tanjirou fue convertido en un demonio por Muzan en la batalla final. El está desesperado por no herir a nadie y termina activando su técnica de sangre, la cuál, o sorpresa, tiene que ver con el tiempo. Tanjiro quiere salvar a todos. (Yo también. 😭) ¿Lo logrará?
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No sé que hacer con mi vida, sólo no quiero ver morir a nadie. 😮💨 -
Take me in your arms to douse the flames of my mind by ArrowHeart24
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
11 Aug 2025
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It was easy being a kid, sneaking into your big brother’s room. For your brother to take you in your arms and make promises one didn't truly know they could keep.
But he wasn’t a kid anymore, and he didn’t know if the nightmares would be met with those same open arms and only a cold, empty bed to go back to.
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A Song In Every Breath by PomPomChihuahua
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
09 Aug 2025
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Summary
Genya was in many ways still like that boy who waited at the door for his big brother to come home. Always chasing behind, but where Sanemi used to turn and wait for him with open arms, now all he received was a cold brush off. One harrowing encounter with a demon leaves Genya defenseless and in need of care. Can Sanemi overcome his reservations and help Genya return to full strength?
Series
- Part 2 of Breathless
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The Way Things Go by spiderlover3000
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
06 Aug 2025
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Summary
Sanemi brushes Giyuu’s hair until he doesn’t.
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Before it's too late by A_Nutcase
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
26 Jul 2025
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Summary
En una línea alterna del tiempo, el joven Giyuu Tomioka es enviado a un pueblo olvidado para eliminar a un demonio que ha estado cazando en la región. Sin saberlo, este demonio es el mismo que, en el futuro, convertiría a Shizu —la madre de Sanemi— en un demonio. Al detenerlo antes de tiempo, Giyuu cambia el destino de la familia Shinazugawa. En agradecimiento, Shizu lo invita a su hogar, sin saber que ese pequeño gesto salvará muchas vidas... y dejará una huella en el corazón del futuro pilar del viento.
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Angel Seeking by Empathy_Disease
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
17 Jul 2025
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Summary
Genya Shinazugawa has always struggled to feel seen when it came to the difficult situation that is his family. Years after his father’s disappearance, he’s never felt more happy and alone—-especially as one of the eldest siblings, but attached to a bad issue of addicting cravings. A busy stressed mother, and an older brother—or maybe a second parent?
An incident from another of his quick fix mistakes leads him into a life of confusing wants, upon meeting Tanjiro Kamado on a bridge, he finds himself needing to know more——
More about the new boy in town.
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The Empire We Bleed For by Fhygjgdhjffg44ee
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
25 Jun 2025
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Summary
Obanai Iguro was raised in whispers and lies, bound to a legacy that answers to the Church, not the crown. In every silence, he hides his venom—and his loyalty.
Sanemi Shinazugawa refuses to kneel, not to power, not to history, not to fate. His fury is his truth.
Giyuu Tomioka—Azriel to his blood and enemies alike—is the Shadow Prince of Japan, heir to a dynasty of fear, brilliance, and ruin.
There are no demons here—just power, cruelty, and the boys who were never supposed to matter.
Or,
A world without Demons.
It's a Au of My Demon slayer AU.
Focuses on Giyuu, Sanemi and Iguro. -
You mean just as much to us by TheHoliestOfNuggets
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
11 May 2025
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Summary
Most people only need to get one person gifts for Mother's Day. For all but one of the Shinazugawa siblings, there's two.
Or
The younger Shinazugawa siblings get gifts for both Sanemi AND Shizu.
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Show me that you're gonna stay (on my worst days.) by Exon_The_Dumbass
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
29 Apr 2025
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Summary
Maybe he wasn't so bad. Maybe they could actually get along. Or maybe Sanemi was just putting on an act until the program was over so he could make fun of Giyuu afterwards.
OR
Alternatively: Sanemi and Giyuu are forced into a student tutoring program together.