Chapter Text
Shibuya is a mess.
Not the usual kind, like the Friday night kind where you're weaving through drunk salarymen and tourists who don't know how to walk proper. It's actually the kind where the sky is the wrong colour and the ground has stopped trusting itself, creating an illusion of it warping in weird, nauseating ways. Curses are scattered like rats everywhere, and the small stupid ones checked out hours ago. What's left is the real stuff.
I land on a flipped van and crouch there, legs open wide, elbows resting on my knees like one of those menacing gangsters you'd see passing by on a sidewalk that would angrily yell "Eh?!" if you even dared to look at them wrong. Somewhere to my left, there's a crater where a convenience store used to be. To my right, a grade-two curse is doing something ugly to what's left of a parking structure. Three sorcerers I don't recognise are holding a perimeter two blocks east.
It's a lot. It's actually kind of sick.
I crack my knuckles and hop off, braced for whatever shit's about to lunge at me.
A special-grade finds me, which is convenient because I was going to find it anyway.
It's big — thirty feet of condensed malice and rotten cursed energy, built like something that used to be a building and decided it wanted to be a little shit instead. Five arms, wrong number of eyes, the kind of presence that makes regular people's legs tremble and knees buckle.
I tip my head back and look up at it.
"Okay," I say.
It screams. The sound alone takes out every window on the block.
I move.
This is the part I like — I'm not gonna lie, I actually love this part. That first second when the distance closes and everything else stops mattering. No background noise or static in your head, just the problem in front of you and every solution your body already knows.
I go low and fast, skimming the ground with enough space distortion humming under my feet that the geometry around me is mockingly lying to the curse about where I actually am. The curse swings aggressively. I'm not there. It swings again, the shockwave from the miss collapsing a chunk of the overpass behind me.
"Brooo," I drag, "you're so slow."
I thread my piercing attack through the void — narrow and precise, a needle of force aimed at the joint where one of the arms meets the shoulder. It punches clean through. The arm drops.
The curse shrieks, wheels on me and I read the cursed energy spike half a second before the technique fires, which gives me just enough time to rotate the vector of it — I feel it in my palms, this horrible compression, and I redirect the whole thing forty degrees left where it detonates against nothing and takes out an already-collapsed shopfront.
I shake out my hands. That one was a bit much.
The black flame comes out when I'm done being careful about it. I let it off the leash and it curls around my arm like it's happy to be out, that deep dark nothing-colour that eats like bone-burning fire but looks like the absence of it. I aim like I'm shooting an arrow at the base of the curse's torso, the densest point of its core, and let go.
The sound it makes when the black flame hits is the air forgetting how to exist in that spot for a second.
It sounds distinctively like a man screaming with no lungs (holy reference lol).
The dust settles.
What's left of the special-grade collapses in on itself and dissolves, a purple smoke travelling upwards in the air before fanning out.
I stand in the middle of the street and exhale deep.
"Okay," I breathe out again, to no one.
I feel him before I see him. That ancient, heavy, mean pressure settling over the block like a frequency dropping into the register where your chest starts doing things your brain hasn't caught up to yet. My cursed energy goes very still, quiet and very alert.
I turn around slow.
He's standing twenty meters back. Tall — wayyy taller than the images, which nobody mentioned — broad across the chest and shoulders, tattoos climbing his arms and throat. He's in my homeboy Yuji's uniform. Four eyes open. All of them on me.
There's a look on his face like he just watched something he didn't expect to watch, and he's deciding what to do with that.
I look back at him. The dust from the curse is still settling around us. Somewhere behind me, something structural gives up and falls.
"You gonna stare or—" I start.
He moves.
Watching him move is watching intent become physics. The dismantle comes diagonal, fast, massive and I get my distortion field up in the half-second I have but even bent and fractured it still clips my shoulder hard enough to spin me. I hit the ground, roll roughly, come up in a nonchalant one-knee kneel all the while still sliding backwards, the asphalt catching friction with the soles of my sneakers, with my jaw clenched hard. The friction finally stops me in place.
Okay. That one landed.
I look at my shoulder. Something's torn — clean cut where the dismantle found the edge of my field.
I look back at him. He hasn't moved from where he threw it. Just watching me intently.
"Was that your hello?" I say.
"I have come to kill you," He says it like he's commenting on the weather. "You fight well. It seemed a waste not to announce myself first."
I stare at him.
"That is—" I pause. "That is so weird, man."
"You are not afraid," he states.
"Should I be?"
"Most are."
I roll my torn shoulder out, testing the damage, and spit blood from where I bit the inside of my cheek when I hit the ground. "I mean, you did just clip me. Props for that, actually. Not a lot of people can do that."
His chin tilts up slightly. Small movement, big shift in the air between us. He's been still in the way that things are still right before they stop being still.
"You have redirected the dismantle," he states another fact again.
"Partially."
"Your field bent space?" an evil smirk creeps up on his face.
"Yep, smartass."
The four eyes do a slow blink. "What else."
The tone of someone finding out whether or not they've wasted their evening.
I straighten up fully. The black flame is already threading between my fingers again, easy and comfortable, and I let the white flame start in the other hand — smaller, brighter, this violent little star that doesn't announce itself the way the black does. It's hotter. Different purpose.
His eyes drop to my hands and something in his posture changes — he straightens up more, broadening his already pretty large frame.
"You're Ryomen Sukuna," I say.
"And you know what that means." his smirk deepens, his eyes go wider like he's insane, which, well, he is.
"Yeah." I grin back at him, teeth and everything. "Makes this even better."
He comes at me like something that's been doing this for a thousand years, which is exactly what he is, and I go up — off the ground, space distortion warping my trajectory so I don't land where I looked like I was going — and the cleave that was going to bisect me takes out a section of the road instead.
We trade for twenty seconds and they are twenty of the best seconds I've had in a long time. Every movement efficient, nothing wasted. The way he reads a fight — god, the way he reads a fight. Adjusting to me in real time, already changing the pattern of his attacks based on what he saw the first five seconds.
I'm doing the same thing back.
The white flame I send at him, he dodges by three inches and I see him register the heat of it — the way it's different from the black, the way it restructures molecules rather than burns. He doesn't say anything, but all four eyes track where it hits the ground and does something interesting to the concrete.
"Don't touch that," I say helpfully.
He looks at me.
"The residue," I specify. "Just — trust me." My grin widens.
His jaw tenses and twitches for a frame of a second.
I open my domain with a gesture of my fingers.
Here and then there — the third ward dissolves and we're suddenly somewhere that's basically pitch black, except our frames don't fall under shadows. We can see eachother very clearly. My domain is a void that pulls in every direction at once, the geometry and physics deliberately broken. Black flames curtain across the seemingly endless barrier of the domain, while the white ones sit at the centre, at the fixed point where I was standing, and everything orbits it. The vectors run everywhere — across every surface, every angle, woven through the air itself.
Sukuna stands in the middle of it, taking it all in for a moment.
And he goes still.
Those four eyes moving across the space around him slowly, taking it apart, reading it. Something in them I don't have a word for yet.
"How old are you." he asks without a question mark.
"Nineteen."
"This is your innate domain."
"Mhm."
There's a short pause. The black flame drifts past him and he watches it go.
"That's lowkey insane, I know," I say, comically nonchalant as a joke.
He looks at me. "What is 'lowkey'."
"It means like— kinda, sorta, in a chill type of way—" I stop, because his expression hasn't changed at all and I genuinely cannot tell if he's asking or judging. "You know what, doesn't matter."
The piercing attacks come from five different directions. I don't aim — in here, the void does it, threading them through the space along vectors he can't track because the geometry is lying to him about the angles. Besides, I get the guaranteed hit upgrade inside my domain. He dismantles two, blocks a third with his arm, counters the other two with equal-force piercing red-orange flames that makes me want to applaud him.
He's still incredible in here. I want to be honest with myself about that.
He's also bleeding from three places on his arm where the void-piercing found the seam. His cursed energy output has been elevated for ninety seconds inside my domain, which costs more than it would cost him outside it.
I let the space settle and look at him from the white-flame anchor point.
"Aye," I call. "You good?"
His expression does something I haven't seen it do yet.
"Do not," he says slowly, "speak to me as though I am a pet, you fool."
"I wasn't—" I almost laugh. "That's not what aye means—"
"I know what you meant."
"...okay, fair."
He looks down at the arm. Three clean lines across it. Then back up at me. The four eyes are all still open and something in his face shifted somewhere in the last two minutes. The thing that came to kill me quietly just became something else.
"You are going to release the domain?" he finally asks. It's like he just read my mind.
"Probably," I agree. "Eventually."
"Why."
"Because you're more interesting than a dead guy, besides, not such a fair fight, is it? I sense that you're in your own independent body right now, not Yuji's. You're prolly not used to it yet." I could feel the lack of Yuji's cursed energy, that's for sure.
He is quiet for a long time. The black flame drifts between us. The white-flame anchor pulses once.
"Your name," he demands.
"Y/N."
He repeats it once, slowly, the way you repeat something when you're filing it somewhere permanent.
The domain dissolves and the third ward comes back — cold air, collapsing buildings, the distant noise of the rest of Shibuya having a very, very bad night. The cut on my shoulder pulls a bit when I straighten up. Whatever, I'll deal with it later.
Sukuna looks at me from across the space between us. The lower set of his eyes are narrowing, a sign of something like relaxation. He hasn't moved toward me and he hasn't moved away.
"You're not gonna try again?" I ask.
"Not tonight."
"Scared?"
The look he gives me for that — I will think about that look later when I'm alone and will absolutely not be telling anyone about the thought I have about it. It's an evil, wide side grin with teeth and all. It's sexy, for god's sake.
"I will find you again," he says in that low, menacing voice. It's a fact he's already decided.
"Sure," I pitch up my tone sarcastically. "You know where the good fights are."
He's gone before I finish the sentence. That ancient pressure fading out of the air like a frequency going somewhere your ears can't follow.
I stand in the empty street for a second.
Then I pull out my phone, one hand still trailing faint black flame, and text Nobara.
Y/N: yo
Y/N: so I just fought sukuna
Y/N: and won
Y/N: also my shoulder's kinda messed up can u come get me
I stick my phone back in my pocket before she can respond and start walking toward the sorcerer perimeter two blocks east.
Above me, the sky is still the wrong colour.
Shit, it was a good night.