Sendai City — an abandoned construction site not far from Sugisawa Third High School.
Yagami Sora slowly opened his eyes, his gaze settling on unfamiliar concrete walls and rusted steel bars scattered across the unfinished structure.
"Where… am I?"
A stabbing pain pierced his mind, and countless fragments of memories flooded in like a tidal wave.
Yagami Sora. Sixteen years old.
A transfer student at Sugisawa Third High School.
Orphaned. Living alone.
"Transmigration…?"
He rubbed his temples, a faint smile forming at the corner of his lips.
"And into the world of Jujutsu Kaisen, a world where curses born from human negativity roam freely."
As someone deeply familiar with anime and manga, he knew exactly how dangerous this world was.
Cursed spirits formed from accumulated negative emotions.
Jujutsu sorcerers who exorcised them using cursed energy.
And above them all—
The King of Curses, Ryomen Sukuna.
Ordinary people in this world were nothing more than prey to supernatural disasters they could neither see nor understand.
[Ding! Host awakening detected. The Strongest Dimensional System is binding…]
[Binding successful!]
[Distributing beginner gift pack…]
A cold mechanical voice echoed within his consciousness.
Yagami Sora's eyes lit up.
"As expected… the standard cheat for transmigrators."
[Congratulations, Host. Ability acquired: Vector Manipulation (derived from Accelerator, Level 5 esper).]
[Congratulations, Host. Ability acquired: Infinite Computational Power (System-assisted processing, increases with mental capacity).]
[Congratulations, Host. Ability acquired: Superior Cursed Energy Reserve (Camouflage).]
A massive influx of information surged into his brain.
In an instant, his perception of the world changed.
Objects were no longer simply objects.
Instead—
They were composed of countless vectors and formulas.
The flow of wind.
The vibration of sound waves.
The refraction of light.
Even gravity itself.
Everything could be represented as a vector with direction and magnitude.
"So this is… Accelerator's power?"
Yagami Sora extended his hand and gently touched a rusted steel bar nearby.
In his mind, calculations instantly formed.
Momentum.
Direction.
Reversal.
"Bang!"
The previously motionless steel bar shot backward as if struck by a cannon.
It embedded itself deep into the concrete wall with a thunderous crack, leaving only a trembling tip exposed.
"Not just that…"
Yagami Sora lifted his foot and lightly stomped the ground.
The rubble within a ten-meter radius suddenly trembled—
Then slowly began to float into the air.
"Manipulating gravitational vectors… still within the scope of vector control."
He inhaled deeply, excitement flashing through his eyes.
"In a world this dangerous… this power means I'm no longer prey."
"System. Open panel."
[Host: Yagami Sora]
[Age: 16]
[Ability: Vector Manipulation (Level 5 / Special Grade Equivalent)]
[Skills: Reflection (Active), Vector Manipulation (Active)]
[Status: Stable]
[Mission: Travel to Sugisawa Third High School and interact with key story characters.]
[Reward: Random skill points.]
"Interact with the protagonists?"
Yagami Sora looked toward the darkening sky.
The sun had already begun to set.
If he remembered the timeline correctly—
Tonight was the night when Yuji Itadori would swallow Sukuna's finger, allowing the King of Curses to reincarnate.
The true beginning of the story.
"Ryomen Sukuna… the King of Curses."
A smirk slowly spread across his face.
"I wonder…"
"Can your slash break through my Reflection?"
He slipped his hands into his pockets and began walking toward the school.
Light rain started to fall.
Droplets descended from the sky—
Yet the moment they touched the surface of his skin, they instantly deflected away as if hitting an invisible barrier.
Not a single drop touched his clothes.
This was Reflection.
Any vector—kinetic force, heat transfer, electrical current—that reached his skin would automatically be reversed.
An automatic defensive calculation.
A phenomenon similar to absolute defense.
Even if a missile exploded nearby, the shockwave vectors would simply be redirected.
"The world of jujutsu…"
"Here I come."
Sugisawa Third High School.
Night had fallen over the campus.
A suffocating atmosphere filled the air.
The wooden display box on the track field—the one that previously stored the Special Grade Cursed Object—now stood open.
Empty.
"Too late?"
Yagami Sora stared at the empty box while sensing the lingering presence in the air.
Residual cursed energy.
The unmistakable aura of a Special Grade cursed object.
However—
"The real show is just starting."
He turned toward the school building.
A dense concentration of cursed energy pulsed inside.
Something had already awakened.
The location—
The Occult Research Club room.
"Megumi Fushiguro should already be there."
Yagami Sora lightly tapped the ground.
His body shot forward like a launched arrow.
By adjusting the reaction force and friction vectors beneath his feet, his movement speed increased dramatically, leaving faint afterimages behind him.
Fourth-floor corridor.
Several grotesque low-grade cursed spirits writhed in the hallway.
Their distorted forms resembled mud-covered corpses.
They were trying to force their way into the clubroom.
"Move."
Yagami Sora spoke calmly.
Without slowing down, he walked straight into them.
The moment their bodies touched him—
A violent recoil force exploded outward.
The cursed spirits were instantly pulverized.
Fragments of purple flesh scattered across the corridor.
Yet not a single drop touched him.
He advanced forward indifferently, leaving destruction behind him.
"So these are cursed spirits…"
"They're weaker than I expected."
He pushed open the clubroom door.
Inside—
Two students were unconscious on the floor.
Nearby, a black-haired boy with sharp eyes was summoning shikigami.
It was Megumi Fushiguro.
In front of him stood a massive cursed spirit.
And in its hand—
A shriveled, mummified finger.
The Special Grade Cursed Object: Sukuna's Finger.
"Who are you?! Get out of here!"
Megumi shouted immediately.
For a normal civilian to enter a place filled with curses meant certain death.
But Yagami Sora ignored him.
He merely glanced at the cursed spirit with visible disdain.
"This kind of garbage calls itself a curse?"
The moment his words ended—
He vanished.
The next second—
He appeared directly above the cursed spirit.
"Vector… Compression."
His palm gently pressed against the creature's head.
BOOM!!!
A terrifying gravitational force erupted instantly.
The massive cursed spirit was crushed into pulp before it could even scream.
The floor beneath it collapsed with a deafening roar.
Dust exploded through the room.
Megumi Fushiguro stared at the scene in shock.
His hands remained frozen in the middle of a summoning gesture.
"This… what kind of power is that?"
As the dust slowly settled—
Yagami Sora stood calmly in the crater.
One hand in his pocket.
The other casually holding the Special Grade Cursed Object—Ryomen Sukuna's finger.
He turned toward the stunned Megumi and flashed a bright smile.
"Yo, spiky hair, is this what you've been looking for?"