The Heir's Shadow
In the Heian era, a wife's failure to produce a male heir for Sukuna turns her world of love into one of betrayal, watching from the terrace as he arrives with a new woman and the son she couldn't give him.
You may also like

A mere concubine
vesperynne
After a bitter argument drives you from your husband’s side, you decide to put your pride aside and seek reconciliation—only to discover the one thing you never imagined. Behind the doors of his chambers, the sounds of another woman shatter every promise your marriage was built on. Now, with your heart in pieces and the palace watching, you must decide whether to remain the feared King’s loyal queen… or become the one person even Sukuna cannot afford to lose.

Favored by the Beast
ʙᴜɴ
A Jujutsu Kaisen x reader world where Ryomen Sukuna's quietest new concubine becomes the one woman he can't stop seeking out.

A Thousand Years of Ashes
emmauriarte2022
When a supernatural phenomenon involving cursed energy sends Miyuki Gojo, her older brother, Satoru Gojo, and his students—Yuji Itadori, Megumi Fushiguro, and Nobara Kugisaki—back to the Heian era, they find themselves scattered across Heian Japan and must reunite. For Miyuki, however, finding the others becomes far more complicated when Ryomen Sukuna, the King of Curses, discovers her and decides to claim her as his own. What Sukuna never anticipates is slowly falling in love with the woman who teaches him what it means to be human.

Six Eyed Cheater
anna
In a world of curses and sorcery, Satoru Gojo's wife discovers the ultimate betrayal—his heart belongs to his best friend, Suguru Geto.

just friends, right? | fwb, jjk college au
ʚ evil cat ɞ
A JJK college AU where revenge sex with your sister's crush spirals into a friends-with-benefits arrangement that neither of you can walk away from.

Not so boring life
InnocentFlower
*! EXTREME SMUT WARNING !* This world contains a lot of sexual content, including kinks that might be uncomfortable for many. Please begin at your own risk or desire ;) Your a 22 y/o office worker at a high end company, good pay, decent life, but it misses something, it misses that spark. And you happen to find just the way to solve that.

I hate you more than anything.
InnocentFlower
You and Satoru met eachother while you two were still Learning jujutsu, Through out the years you ended up getting into a relatinship the same year you two became teachers. It ended really badly almost a year ago. Satoru absolutly hates you and you know it, but the unexpected happens...

Forced marriage
Honeydew23
His family forces him to marry a woman named mao to help their political status. Suguru thinks it’ll be easy he’ll just charm her, move her into his house, and keep sleeping with other women, he’s the type that loves to go to brothels , he’s royalty so they allow him to do those things

The King's New Concubine
artemia
Married to Ryomen Sukuna, the King of Curses, you must fight for your place when he brings home a dangerous new mistress.

The Cosmic Trial: JJK Soulmate AU
Yifei ☁️
Welcome to JJK Crest University! Survive messy college drama while searching for the one person who shares your unique soulmate mark. Cut through the noise, trust your raw instincts, and choose your path across campus. Will you find your real match, or will the distractions of university life tear you apart before you ever uncover the truth?