SIkuna Crossover Collection
Place to gather all of the crossover snippets that spawn from the chaos of the SIkuna Discord Server
(Open, Unmoderated)
Recent works
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The King Of Misunderstandings by themagicmemo
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Manga), 呪術廻戦 | Jujutsu Kaisen (Anime)
31 Mar 2026
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Summary
Reincarnating as Ryoumen Sukuna, the King of Curses, should have been a death sentence. Every sorcerer wants him exorcised, and his own host, Yuji Itadori, is just waiting for an excuse to get rid of him. But the real problem? Any time he tries to say something normal, something reasonable, something that might convince people he isn’t a complete monster…
The words twist in his mouth, and he somehow says something even worse.
He tries to reassure Yuji? It comes out as an ominous threat about mass murder. He wants to sound disinterested in a fight? He ends up making it sound like he’s excited to take his time with the slaughter. No matter what he does, he can’t speak out of character, and his every attempt at damage control only fuels Sukuna’s terrifying reputation.
If he wants to survive, he’ll have to stop relying on words and prove himself through actions. But when even the smallest act of kindness looks like a twisted mind game, how long can he last before everyone—including Yuji—decides he’s beyond saving?
Series
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Coya'alor by Boing for Overly_Verbose, Oceanic_stream, valaraanth, yusa3i, Yue_Charontares, Luckycat234
Fandoms: Star Wars - All Media Types, 呪術廻戦 | Jujutsu Kaisen (Manga), 呪術廻戦 | Jujutsu Kaisen (Anime)
17 Jan 2026
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Summary
What if Coya was in Star Wars? What if they were mandalorians? What if Steve and Valiant were brothers?
What if Steve has an adoption problem?
_
The story is a jjk-crossover by technicality only. With si/oc's from writers that wrote jjk fics addapted to the star wars verse.
Series
- Part 1 of SWkunas
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New School, New World by ChessCat
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Manga), 呪術廻戦 | Jujutsu Kaisen (Anime)
10 Sep 2025
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Summary
Starting a new school, Itadori takes his first steps into the world of jujutsu, even if he doesn't quite trust the sorcerers yet. Perhaps this could change and he could convince them about Sukuna's true identity in the future? Maybe. For now, it's simply the start of a new chapter.
Series
- Part 2 of SIkuna
- Part 2 of Bạch Hạc Thần Thụ
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Of Fragments, Imprints, and Echoes by Travellers_Of_Void
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Manga), 呪術廻戦 | Jujutsu Kaisen (Anime), Hollow Knight (Video Games)
14 Jul 2025
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Summary
A series of various AUs, One Shots, and Missing Scenes for my Hollow Knight x Jujutsu Kaisen fic series "Not Sorcerer, Nor Curse, Nor God"
Series
- Part 2 of Not Sorcerer, Nor Curse, Nor God
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r/Who Let This Bird Have So Many Kids by Puppetmaster13
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Manga), 呪術廻戦 | Jujutsu Kaisen (Anime)
09 Jul 2025
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Summary
Wingkuna takes to Reddit for help with attempting to raise 30+ children while ignoring the Culling Games going on outside.
It's not important, truly, what is important is how to stop these brats from cracking their skulls open while he's trying to keep them alive.Series
- Part 5 of Matori [Wingkuna]
Recent bookmarks
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Summary
Sukuna squats down, face in his hands. He's lacking a chair to complete the infamous Shinji pose here.
'God, if you can hear me; I fucking hate you and everything in this fucking world. Damn it all.'
He doesn't know why he isn't panicking. His mind is stupidly clear for having just transmigrated between universes. Either an isekai buff or it's all just too ridiculous to yet register. Also, his midsection hurts, he should heal that. Oh! Guess original Sukuna's abilities integrated into him completely. Controlling cursed energy feels completely natural. Atleast there's that. Should he ever want to kill somebody or himself he'll have no problems.
Or; some random dude gets thrust into Sukuna's position and thus has to navigate (and fix— his morals demand) the world of Jjk without fucking things up too bad and going insane in the process
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My friend group was reincarnated into the villains of a shounen manga and now we have to convince the protagonists we’re not evil??? by irisbi, Kyuri_sama, occasionalfleshcravings
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Anime), 呪術廻戦 | Jujutsu Kaisen (Manga)
26 May 2026
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Summary
One random ass day, someone falls down the stairs and dies. Another person is killed in an undisclosed way. For plot reasons.
One less random ass night, Sukuna is incarnated into the body of Itadori Yuuji. On the other side of Japan, a curse by the name of Mahito is born.Neither wake up alone.
———<•>———
Aka, two people try to write fanfiction. One of them has only just started watching jjk and almost exclusively writes crack, and the other is chronically online and has only seen jjk through the anime and internet spoilers.
Beware, for we have no idea what we’re doing.
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Paradox Structure Rubedo (Or; That Time Mai Zenin Decided To Lock The Fuck In) by AnnaBananna_SB
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Anime & Manga)
10 Mar 2026
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Summary
Mai Zenin is, canonically, a bit of a bum.
Her sole contribution of note is dying in her sister's arms and providing a pretty stacked weapon with which Maki then proceeds to go Kill Bill on the Zenin Clan with. Beautiful fight sequence, but not exactly indicative of a strong fighter or skilled sorcerer.
This time, however, Mai Zenin remembers another life. She remembers the tragedies of Shibuya and the Culling Game, and by hook, crook, or gun-barrel steel, she's not going to let her family go.
Or; did you know that [Construction] is actually the most busted-OP technique in JJK? Kenjaku didn't, and now he's dead.
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A Farce Twice as Cruel by Metronome_I_Hear
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Anime & Manga)
09 Mar 2026
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Summary
Canon is dead, Sukuna thinks as he takes Geto's hand. Perhaps it never lived in the first place.
Or: Upon waking up as a child Itadori Yuuji after living the life of Ryomen Sukuna, The King of Curses--once a simple JJK fan--decides to throw out the plot.
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An Ancient Curse's Guide To Juvenile Delinquency by AnnaBananna_SB
Fandoms: 呪術廻戦 | Jujutsu Kaisen (Anime & Manga)
17 Feb 2026
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Summary
That robed figure, Sukuna, the King of Curses, tripped on a loose bone. A skull went flying off the Bone Pile, and Newton’s Laws promptly came into full effect. Sukuna flopped forward with a strangled cry, tumbling end over end half a dozen times before faceplanting in the shallow pool of blood-water.
Yuji stared, eyes wide, at the prone form of the dreaded King of Curses.
A weak sob escaped the Curse(?)’s mouth as they curled up into a ball and visibly held back tears.
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Sukuna acquires unfamiliar memories and an older brother.
Yuji Itadori acquires Cursed Energy and a little sister.
Gojo acquires two gremlins for the price of one.
Jujutsu Society acquires a massive fucking headache.
All in all, this is probably a net good for the timeline.