Demon Slayer Agere
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He Doesn't Want Me by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
05 Mar 2024
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Summary
Sanemi’s not sure when his brother stopped seeing him as safe, not sure when the Kamado siblings took that away from him. It shouldn’t matter, yet it does.
Series
- Part 1 of Demon Slayer Agere
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Let Me Watch Over You Now by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
11 Mar 2024
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Summary
Kagaya takes care of Giyu after a mission goes wrong
Series
- Part 2 of Demon Slayer Agere
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Two Caregivers VS a Bowl of Sticky Rice by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
22 Apr 2024
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Summary
Rengoku takes it upon himself to try and help feed Giyu once seeing how much Shinobu was struggling to keep up with the regressor and other patients. Turns out while little Giyu may eat… the problem is now that he’s a fussy eater for no apparent reason.
AKA Tengen and Rengoku trying to feed Giyu while he’s regressed.
Series
- Part 3 of Demon Slayer Agere
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Sippy Cup Rules by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
28 Apr 2024
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Summary
Giyu insisting Tengen use a sippy cup, because the sound hashira spilt his drink, and if those are the rules for him when little, then those are the rules for his caregiver too
Series
- Part 4 of Demon Slayer Agere
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Milk Bottles and Cinnamon Stars by DragonQueen21 for ZeZeroZen
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
04 Jun 2024
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Summary
Muichiro wakes up regressed from a nightmare at two in the morning. With his usual caregiver this wouldn’t be a problem. Only he’s not with his caregiver’s, rather he’s spending the night at the Uzui estate
Series
- Part 5 of Demon Slayer Agere
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I'll Hold You Close Darling, You Did Fine by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
22 Jun 2024
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Summary
The younger slayers regress after the battle in the red light district, Tengen reflects on the situation, and as their caregiver, has to try and pick up the pieces
Series
- Part 6 of Demon Slayer Agere
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Invitations to Dinner by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
09 Jul 2024
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Summary
In which Tengen get's tricked into watching over Inosuke, Zenitsu, and Tanjiro while the three are regressed and finds that he doesn't really mind it.
Series
- Part 7 of Demon Slayer Agere
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Contentment Doesn’t Last, Learn to be Okay by DragonQueen21 for ImaginationsPortal
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
02 Aug 2024
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Summary
Muichiro has a bad habit of comparing himself to others. He seems to only be sad when little, regressed to young and needing to much attention compared to the others around him. He comes to the conclusion that how he regresses must be wrong.
Spending time at the Uzui's with Tanjiro also regressed only confirms this. Or at least he thought it would.
Series
- Part 8 of Demon Slayer Agere
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Infinite Pacifier Glitch by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
01 Nov 2024
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Summary
Caregiver Obanai who always seems to have a different pacifier on him at all times
Plus some of the shenanigans his regressors have caused him due to thisSeries
- Part 9 of Demon Slayer Agere
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Now It's Three in the Morning, And I Don't Know What's On Your Mind by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
11 Nov 2024
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Summary
Tanjiro has been waiting for a week for Giyu to return. Waiting for his big brother and caregiver to take care of him. But something isn't right and Tanjiro is too small to figure out what it is. Only that Giyu is hurt, and there is nothing he can do to stop it
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Giyu relapses and Tanjiro is too small to be able to process what is happening
Series
- Part 10 of Demon Slayer Agere
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Quarter to Dark and Half Past After by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
24 Nov 2024
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Summary
Zenitsu only finds out about his friend’s regression when he's startled awake in the middle of the night by the sound of crying and a softly sung lullaby
Series
- Part 11 of Demon Slayer Agere
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I Think I'll Miss You Forever, (Or Until You Come Back Home Again) by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
26 Nov 2024
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Summary
Kagaya can count on his hands the number of times he’s seen Tengen regressed. Even less are the times the sound pillar has ever been younger than 7.
It means one of three things.
Rengoku is small also. A mission went horribly wrong. Or Tengen was lonely and isn’t doing well with that fact.Series
- Part 12 of Demon Slayer Agere
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The Grief of Caring by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
04 Dec 2024
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Summary
Nezuko’s grief over caring for her brother while he's regressed and all the reasons why she feels that she knows she shouldn't be allowed to take care of him in such a vulnerable state and yet longs to anyways
Series
- Part 13 of Demon Slayer Agere
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Meltdowns, Shutdowns and Avoidances by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
12 Dec 2024
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Summary
Tengen doesn’t do too well with the house being quiet. Hard to place what’s going on around him when his thoughts are small and blurrying with past memories. Rengoku comes and helps.
AKA self indulgent regressor Tengen angst
Series
- Part 14 of Demon Slayer Agere
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What to Do If You Lose Three Babies (and a Caregiver) by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
03 Feb 2025
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Summary
Somehow it takes all 8 pillars to find where three little ones are hiding. And where the heck did Giyu go?!
Series
- Part 15 of Demon Slayer Agere
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Just Buy A New One, As Though That Ever Was An Option by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
05 Feb 2025
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Summary
Giyu’s Haori gets damaged when Sanemi tries to 'teach him a lesson'.
“It’s not a big deal, just get a new one.” Only he can’t get a new one, and it is a big deal. One that causes him to involentarily regress and have a breakdown.
Series
- Part 16 of Demon Slayer Agere
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Required: Naps Daily by DragonQueen21
Fandoms: 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
In which Zenitsu detests nap time when little and is constantly fighting Tengen when he tries to out him down for one… that is, until Tengen forgets to
Aka:
Tengen is just fed up and tired of dealing with a screaming toddler and says “screw it, you don’t want to nap, then don’t” and Zenitsu takes that personally.Series
- Part 17 of Demon Slayer Agere
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I Just Want to go Home - So Please Don’t go by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
12 Oct 2025
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Summary
Tengen notices that Sanemi spends more time pet regressed the closer it grows to his 25th birthday, and more time mourning for everyone they’ve lost. He just wishes he had something more comforting to say to the regressor, something to take the pain away.
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Puppy Regressor Sanemi, who misses his mama and his brother, realizing that Giyu will leave him too. He just doesn’t understand why. What did he do to deserve everyone leaving him?
Series
- Part 18 of Demon Slayer Agere
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No One Left to Turn to, So of Course it Had to be You by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
26 Oct 2025
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Summary
It’s been months after the final battle, and Tengen haven’t heard from Giyu since. They had all begun to believe the worse, only to have Giyu show up on their doorstep late one evening, covered in blood and asking where Tengen was.
Aka
Giyu relapses, goes to the only person he knows could help him, and finds himself included in the Uzui household as though he always belonged
Day 26: "Nothing like a relapse to rehash the kid who was scared."
Relapse | Drawn Curtains | Power CutSeries
- Part 12 of Mayliz’s Whumptober Fics 2025
- Part 19 of Demon Slayer Agere
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Violent Dogs Bite by DragonQueen21
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
02 Nov 2025
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Summary
Akaza misses his old caregivers, he can’t even remember who they were or why he longs so much for them, but he knows their memories haunt him. Back then he hadn’t even known what the mindset was that he went into, they had called it ‘puppy mode’ and left it at that. All he knew is that they left him when they promised they wouldn’t. Douma takes care of him now when he’s small, it’s not the same as the promise of family.
Or
A comparison of how Koyuki and Keizo took care of Akaza regressed verses how Douma now does.
Series
- Part 20 of Demon Slayer Agere