1 - 20 of 38 Works in Kaidou Shun/Reader
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Listing Works
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Validation by l1tw1ck
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
04 Nov 2025
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Summary
Shun got a little too caught up in his roleplay and ended up in the jaws of a beast, who finally validated Shun's belief in superpowers and magic in the most shocking and best way possible
(AFAB Language Used)
Series
- Part 9 of Kinktober '25
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Kinktober 2025 by pebble1329
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), 呪術廻戦 | Jujutsu Kaisen (Anime), 呪術廻戦 | Jujutsu Kaisen (Manga), 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
07 Oct 2025
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Summary
Kinktober 2025 (check my previous work if you want to request something)
I’ll update tags as I post more.
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The Dark Reunion Mission: Defeat The Jet-black Wings by idontknowthefreakingmoon
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
02 Oct 2025
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Summary
Y/n is a member of the Dark Reunion sent to PK Academy to earn the trust of ex-member The Jet-Black Wings - better known as Kaidou Shun - so they can retrieve the power sealed within his right arm.
But things take a turn when y/n befriends Kaidou...
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saiki k x fem reader oneshots! by jellypuke
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
20 Aug 2025
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Summary
collection of oneshots where the saiki k characters rllllyyyyy like u a lot hehe ok bai
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𝐀𝐢𝐫𝐩𝐥𝐚𝐧𝐞 𝐌𝐨𝐝𝐞 by bo_looser
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
31 Jul 2025
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Summary
Kokomi Teruhashi has gone through life with Y/n always by her side. Everything Y/n has done really helped her throughout everything. Y/n saves her from boys and getting hurt, so what Teruhashi wants is to find a boy who doesn’t freak out about her appearance so she can set them up with Y/n and make her happy. She finally finds a boy who does that, but she doesn’t like all her other classmates getting so close to her best friend.
That was Teruhashi’s place.
[Various x Reader]
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The Disastrous Life of Saiki K. x reader oneshots by PlushVerse
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
25 Sep 2024
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The Anniversary Present by RosesScabbard
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
28 Aug 2024
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Summary
You come up with a very special present for your boyfriend, Shun Kaidou.
F!reader -
The Work of the Dark Reunion by 2Blue_Jay2
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
31 Jul 2024
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Summary
Don't you hate when you move to a new town and everyone in school ends up assuming you're a roleplayer because of some weird boy but now you're kinda stuck being his friend because no one but him and his friends will talk to you? Yeah, me too.
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More perfect than perfection itself by Floof_supremacy
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
18 Jul 2024
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Summary
Who would've thought someone could ever outshine Kokomi Teruhashi? Let alone her own twin sister.
Join y/n Teruhashi as she joins PK Academy and manages to capture the hearts of many.[Essentially a reverse harem, will end on one ship though.]
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Chipmunk and Goldfish by DonutsForSale
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
04 Jul 2024
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Saiki K Yandere Headcanons by WhyDoWeTryAnymore
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
22 Feb 2024
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Summary
What I think Saiki K characters would be like as yanderes. Updates every Tuesday but might update inbetween.
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The Disastrous Life of Saiki K. Writings from Tumblr by Lauren_the_simp
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
17 Dec 2023
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Summary
These are my The Disastrous Life of Saiki K. writings from Tumblr
The characters tagged are all the characters that can be written for
*Note most warnings for each chapter are on the chapter themselves -
Disconnecting. Try again. by Issak_2oFive8
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
18 Nov 2023
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Summary
"Master! Thanks for yesterday," Reita, having noticed the pink haired weirdo, made his way over to you two.
'Did he just fucking call him master?? what kind of kinky shit is this?!'
On hiatus
Series
- Part 1 of Saiki K reluctant adventures with reader
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I caught you! by Taknay_damo
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
30 Jul 2023
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Summary
Saiki cares about Y/n a lot, but not enough to admit it. Perhaps these feeling of platonic love are stronger than he thinks, oh the lengths he would go to protect her, keeping her out of the line of fire.
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Repurposed by l1tw1ck
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
19 Mar 2023
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Summary
"The Jet Black Wings gets captured, rendered defenseless, and repurposed into a cock sleeve by an old friend, a member of Dark Reunion."
OR
kaidou roleplays with his partner
(includes version without afab language)
Series
- Part 97 of Tumblr Requests
- Part 25 of Fapbruary
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More than a Movie by l1tw1ck
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
28 Jan 2023
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Summary
Kaidou nervously takes it to fourth base
Series
- Part 76 of Tumblr Requests
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The Psychic and the Wannabe Psychic (Y/N Saiki x Kaido) by orphan_account
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
24 Jan 2023
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Summary
Y/N Saiki, the older twin of Kusuo Saiki, starts falling for a certain Shun Kaido, will this infatuation end well, or will it end in disaster?
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Ethereal by lovesickwriter
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
23 Jan 2023
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Summary
People only show you what they want you to see. Deep down, humans are filthy. Kusuo knows this much. Except...you. You are Kusuo's light. His everything. That's why he has to protect you, no matter the costs.
(yandere Saiki x bubbly reader)
All characters are 18+ // Inspired by "Happy Sugar Life"!
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Cute Saiki K Imagines! by froggytattoo, Mono_Worm
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
10 Jan 2023
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Summary
Just some cute saiki k boyfriend imagines! Totally normal imagines. (Read the tags for more info)
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A Sucker for Love by pyromaniac_mage
Fandoms: 斉木楠雄のΨ難 | Saiki Kusuo no Sai-nan | The Disastrous Life of Saiki K.
12 Oct 2022
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Summary
You, [Y/N] [L/N], are an ex-gang leader. You have been best friends [despite him refusing to acknowledge it] with Saiki for about five years now. He knows about your past [and doesn't really care] and you know about his abilities. Despite his attempt at a normal life, he gets into weird situations and you of course follow him. Someone takes an interest in you and you take in an interest in them but with weird school crushes who knows what will happen?
After all, someone else has a crush on Kaidou. Oh, let's not forget your lollipop addiction.