✧Sukuna x Reader - The Reincarnation & The Prison✧
Angst | Reincarnation | JJK AU | Sukuna remembers his queen. Now she stands before him again… and he can’t reach her.
*Season 3 for better understanding without spoilers*
The Heian era remembered him as a calamity.
But there had been a time— buried beneath blood and legend—
where Ryomen Sukuna learned what it meant to wait for someone.
You had not come to him kneeling. That's what caught his attention first. You stood in front of him, chin lifted, eyes sharp with something that wasn't fear.
"The Jujutsu society is weak," you had said, voice steady despite the pressure of his presence crushing the air around you. "Full of rules written by cowards who fear power they can't control."
Sukuna had smiled then. Not kindly. Not warmly. Something more feral.
"And you think you're different?"
You didn't hesitate. "I know I am."
That should've been the moment he killed you. Instead—
he laughed. And let you stay.
At first, you were nothing more than entertainment.
A sorcerer bold enough to stand near him, training relentlessly, breaking yourself apart just to rebuild stronger.
You didn't flinch when he watched.
Didn't crumble when he tested you.
Didn't beg when you lost.
You learned, adapted, endured.
And slowly— annoyingly— you became something else.
Not in strength— not at first. But in presence.
In the way you spoke to him like he was not untouchable but never disrespectful.
In the way you saw him. Through him.
"That's a lonely way to live."
That had almost gotten you killed.
Because instead of slicing you apart— he stepped closer. Gripped your jaw. Forced you to look at him.
"Careful," he warned, voice low, dangerous. "You're stepping into something you won't survive."
"...Then why are you letting me?"
Silence—but that was the beginning.
You became his equal in everything but title— until one day—
"My queen," Sukuna had said, the words foreign on his tongue but right in a way nothing else had been.
And for the first time in his existence—he chose something.
Not destruction. Not dominance.
Then time did what time does. It took everything.
Now— centuries later— he's trapped. Not in fear, but in a body that's not his.
But today— something shifts when the brat gathers another sorcerer as an ally in the Culling Game.
A ripple. Familiar. Impossible.
Sukuna tilts inside the dark space of his innate domain. "...No."
Sharp, refined, unmistakable. Burned into his very being.
You. Alive, reborn, outside, standing in front of the brat. Training.
The same core, the same relentless force that once stood before a king and refused to bow.
Sukuna laughs, low, unsteady.
Yuji freezes. "...What do you want."
Sukuna's voice curls through his mind like smoke. "Switch with me."
Sukuna's grin fades slightly. "...Do it."
"No." Yuji's grip tightens on the curse tool in his hands.
"I'm not letting you anywhere near people."
People. Sukuna's voice drops. Not cruel, not mocking this time.
Yuji frowns. "What are you talking about?"
Outside—you call Yuji's name, walking toward him, offering a correction on his stance.
Sukuna feels it. Every step. Every breath. Every flicker of your cursed energy. And something in him—
something ancient and buried— aches.
"Switch," he says again. Yuji shakes his head. "No."
And for the first time— in thousand years— Sukuna hesitates.
Then— quietly— "...I just want her."
Yuji goes still. The sentence doesn't belong to him. "What?"
Sukuna's voice is different now. Lower. Strained.
"...Let me speak to her."
Outside, you're closer now, crouching slightly to meet Yuji's eye level, adjusting his arm.
Your touch his light. Familiar.
Sukuna closes his eyes. "She's mine."
Not violent. Not possessive, yet. Lost in memories.
Yuji swallows. "Didn't know you could care about others."
"...I won't hurt her, if that's what you're scared of." Sukuna says, eyes sharp, because the matter is important to him.
Yuji looks at you. At the way you trust, the way you stand close to him without hesitation.
"...How do you know her?" Yuji asks.
Sukuna's voice as loud as a whisper. "I remember everything...I remember her."
Yuji exhales slowly. Conflicted.
Outside—you smile slightly.
"Focus, Itadori. You're drifting."
He blinks. Grounding himself. "...Yeah. Sorry."
But Sukuna is unraveling every memory of you in his mind.
Because you're right there, alive, breathing, within reach—
and he can't touch you. Can't speak to you. Can't even say your name out loud.
And for a king who once had everything—this?
So instead of waiting for an opportunity, strategize, he decides to try the brat again.
"...Just once," he murmurs.
Love, turns out, is a far crueler prison than any vessel.
On the makeshift training grounds, gravel crunches under your feet as you circle Yuji, correcting his stance with a light tap to his shoulder.
"Again." you say. Calm. Focused. Unyielding.
Yuji nods, breath steadying. But, Sukuna is pacing now, his kimono flowing with his movements. Restless. Watching through Yuji's eyes like a starving man staring through glass.
"If you don't switch, then say this to her. Then I'll know she remembers too." Sukuna presses, relentless, unwilling to let the matter go.
"Now," Sukuna orders, softer than usual, threaded with something dangerously close to urgency. "Tell her."
Yuji clenches his jaw mid-motion, trying to keep his focus on the training.
Outside— you tilt your head slightly. "You hesitated."
Yuji laughs nervously. "Yeah, uh...thinking."
"Brat," Sukuna's tone sharpens before it dips into something raw. "You said you would consider it."
"I said I'd think about it!"
You step closer, too close.
Sukuna feels it like a magnet. A quiet gravity you've always carried.
"...She hasn't changed," he whispers.
Yuji exhales harder this time. "...Fine."
You blink as Yuji straightens his posture, stiff, like he's bracing himself for something awkward.
"Uh... This is going to sound weird,"
You still. Something in you— deep, ancient, buried under lifetimes— listens. You tilt your head.
Inside— Sukuna's voice lowers, careful, precise, like handling something fragile with hands that have only ever known destruction.
Yuji swallows. Then he says it.
"...You tilt you chin when you're about to argue."
The air shifts. Because that—is not something anyone should know.
Your body react before your mind catches up. Your chin tilts, just slightly.
Sukuna inhales sharply inside the innate domain. "There," he breathes. "There you are."
Yuji watches you carefully now. "...There's more."
You don't move, like your blood has run cold and your heart is beating in your ears at the same time.
"You hated the elders' rules," Yuji continues, voice slower now, more deliberate. "Said they dressed fear as tradition."
Your fingers twitch at your side. A flicker of a memory. Not clear, not whole—but warm and dangerous.
"Who," you say quietly, "is speaking to me?"
Yuji hesitates. Hates being his middleman.
The name lands like a dropped blade. You don't flinch—not outwardly. But in your soul, something recognizes it. Not as a legend. Not as a curse. As something that was once yours.
"...That's not possible," you murmur, but there's doubt in your voice.
Inside Yuji—Sukuna steps closer to an invisible edge.
"Ask her," he says, voice softer now. "Ask her what she called me."
Yuji frowns. "...He wants me to ask you something."
"...What did you call him?"
Your breath catches. Your body acts on instinct, your lips moving before your mind can catch up.
Your gaze drifts— not at Yuji, but through him.
"...I didn't call him anything other than his name," you continue slowly, like pulling the words from a locked place inside you, "because titles meant power. And I refused to give that to anyone."
Inside—Sukuna smiles. Not cruel, far from it. Fond.
"...But one day," you whisper, eyes unfocused now, "he said something—"
You frown, trying to catch it. Then—it slips out.
Yuji's eyes widen, like a wingman who never asked for this role. "...Okay, that—"
"That's her," Sukuna breathes, voice cracking under something far too human. "That's my queen."
Your hand lifts slowly, hovering near Yuji's face. Just... close.
"...Why does it feel like you have something of mine?" you ask, barely above a whisper, before pulling your hand back.
Yuji doesn't answer. He can't.
Because Sukuna is right there— pressing against edges of his control. Not forcing his way out— but aching to.
"Tell her," Sukuna says, almost growling with restraint. "Tell her I remember."
"...He says he remembers. Everything." He repeats.
And that's when it hits you. Not as a memory, not as a vision.
Standing in a place that no longer exists.
Heat. Power. Presence by your side. Like standing next to a storm that never struck you.
A voice— low, dangerous— saying things that should've terrified you. But didn't.
"...It's really him." Your breath shakes.
Because inside him— for once— Sukuna is silent.
The entire ordeal leaves you questioning everything you know. Everything you are.
So you do what always felt right. Something that feels older that this life.
You give a silent nod to Yuji—a glance that lingers a second too long... Then you're gone.
Without any explanation for the teen.
Yuji exhales. "...Yeah," he mutters to himself. "That's not weird at all."
Sukuna sits on his throne of bones, knowing.
"She's going to hunt," he says, voice low, certain.
Yuji frowns. "You say that like it's normal."
Sukuna rest his chin on the back of his hand, eyes half-lidded.
Yuji really hopes he wasn't wrong about trusting you to help stop the Culling Game.
You find yourself downtown, within the colony that you've been assigned. The city at night breathes differently. Darker. Heavier. Honest.
You move through it like you belong there. Because you do.
You don't hesitate. Your technique snaps into place.
Precise. Brutal. Efficient. No wasted movement.
It dissolves under your hand like it was never meant to exist.
A curse user this time—desperate, fast, trying to carve his way up the ladder of Kenjaku's twisted game.
He attacks first, but you're faster.
You finish it. Clean. No thrill. No regret.
Meanwhile, from a safe distance—hidden—is Yuji. Part of him is curious about who you really are. The other...is for the King of Curses.
And he is.
Watching. Remembering.
Because he recognizes everything. The way you step into a fight like the outcome was decided long before it began.
The way you don't chase blood—
"Never afraid," he says quieter now. "Not of me, not of anything."
Images flicker in his mind. Heian battlefields soaked in red. You beside him. Never behind.
The only queen who didn't wear silk— but war.
Yuji swallows. "...You really loved her."
Because the word love feels too small for what you were to him.
Back at the abandon shrine—the place you've claimed as a temporary refuge—
Yuji senses you before he sees you. He turns.
Your presence fills the space louder than any sorcerer he's faced in the colony. Yuji stiffens.
Not in fear. Just...uncertain.
"...Are you okay?" he asks, hesitant.
You don't answer. Your eyes lock onto his. No— through him.
The name lands differently now.
Not as a legend, nor a curse.
Sukuna is already there. Standing. Present. Watching.
Yuji exhales slowly. "...He says he's here."
You nod once. Then step closer.
"I thought about it." Your voice is steadier now. Grounded.
Because something ancient has settled inside you—something his presence reignited.
"This game," you continue, gaze unwavering, "this 'Culling Game'—it's wrong."
Yuji relaxes slightly.
Good. You're still on his side.
"It forces power without purpose," you add. "Twists strength into spectacle. That's not what we fought for."
"...Kenjaku," you say, something sharp cutting through your voice, something personal, "is pretending this was ever about you."
Anger strikes quickly through Sukuna. Immediate.
"He dares to speak for me."
Yuji relays it, quieter now.
"...That's what irritates me the most." You take another step closer.
"You never needed anyone to give you purpose," you say, voice lowering. "You took what you wanted. You decided your own meaning."
"...That's why I chose you."
Sukuna stills completely.
There's something intimate in it. Private. The way your words land.
You continue, "I'll help end this."
But your gaze never leaves him. "...But this ends, if he helps."
Yuji tenses again. "...Define 'helps'."
Inside— Sukuna tilt his head, intrigued.
Then— you make your offer.
Yuji goes still, bracing Sukuna's reaction.
"...behaves," you add simply.
Sukuna lets out a low laugh. "You ask for obedience?"
Yuji hesitates before repeating it.
You raise your chin. Not mocking, certain.
"I'm offering something in return."
That catches both of them.
"When this is over," you say, "I'll bind our souls."
Yuji narrow his eyes, not fully understanding how this could even be possible.
You don't look away. Not from Sukuna. Never.
"In death," you continue, solid as stone, "where no one can separate us again."
Because this isn't romantic.
It's devotion sharpened into something unbreakable.
"Like it was always meant to be." you finish.
Sukuna closes his eyes. Not remembering the end—
but what was taken from him. What was interrupted.
"...Kenjaku," he murmurs, voice darkening, "interfered with something that was mine."
Yuji doesn't even question repeating it anymore. He just does.
Your lips press together. "...Exactly."
"...Do we have a deal?" you ask.
Silence stretches. Yuji waits, tense. Because this matters. This could change everything.
He doesn't laugh. Doesn't mock.
Yuji exhales. "...He says yes."
You nod once. No celebration.
Because there were never games between you.
Just two forces choosing each other. Even now.
Yuji rubs the back of his neck, tension easing just a little.
"...Okay," he mutters, almost smiling. "That's...weirdly reassuring."
You finally look at the young man properly.
A flicker of something softer passes through your expression.
"You'll live," you say simply.
And somehow—coming from you—
Sukuna's gaze lingers on you.
For the first time since his rebirth—
he's not reaching for control.
Working toward an ending that finally belongs to both of you.
♡ It’s long, but it feels special ♡
If you stayed until the end, you get it...thanks ♡
♡ more of the King of Curses ➺ Masterlist