Haruto Mikage spent three nights in the storehouse after the curse was destroyed.
He did not sleep there. Sleep required trust, and the storehouse had forfeited that privilege the moment a curse had formed beneath its roof without being noticed by the household seals. Instead, he sat cross-legged on the cold wooden floor with a lantern to his left, a brush to his right, and fifteen strips of blank talisman paper arranged in a fan before him. Every few hours, he replaced one paper strip, rewrote one seal, checked one nail, scraped one corner of old residue from the wall, and listened.
That was what the Mikage were good at.
Listening to what remained.
Not fighting at the front. Not impressing elders. Not crushing curses in ways that made apprentices gasp and servants whisper. Their inherited technique had never produced a legend. No one recited stories about a Mikage ancestor who had saved a province or humbled a special grade or carved his name into jujutsu history.
The Mikage read traces.
They found what others missed.
They cleaned the corners of the world after stronger people had already left.
Haruto had once hated that.
Then he had grown old enough to understand that being underestimated was not humiliation if one survived because of it.
By the second night, he had reconstructed most of what happened.
A neglected resentment had gathered in the storehouse after three servants used the building for whispered complaints over several months. Small fears. Petty irritation. A little anger toward the estate, toward old rules, toward children born into families that could see monsters and call that inheritance. Nothing unusual. Nothing that should have formed more than a nuisance.
The cracked seal under the roof beam had allowed the residue to knot.
The curse had manifested weakly.
Rei had seen it.
Rei had panicked.
Rei had somehow reinforced his forearms with cursed energy well enough to survive direct contact.
Rei had then used a tracking charm not as designed, but as a crude anchor to seize the residual thread connecting the curse to its birthplace.
That was the official shape of the incident.
Haruto wrote it down on the fourth morning.
He hated the report as soon as the ink dried.
It was not false.
That was the problem.
False reports were simple things. You knew where they would break. You knew which questions to avoid. You could build them like cheap bridges and pray no one important tried to cross.
This report was worse because every sentence could be defended.
A child with early manifestation of Residual Threading had detected a weak curse. Under stress, he had activated basic reinforcement. He had interacted with the curse’s residue through instinct rather than formal technique. The father arrived and performed the exorcism.
Acceptable.
Modest.
Useful.
Not extraordinary.
Haruto stared at the final line until the characters blurred.
Then he folded the report and sealed it with the family mark.
Sayuri found him there just before dawn.
She did not enter immediately. Her silhouette rested against the doorway, wrapped in a pale robe, her hair tied loosely over one shoulder. She looked tired in a way that had nothing to do with sleep.
“Will you send it?” she asked
Haruto pressed his thumb against the seal until the wax cooled.
“Yes”
Sayuri’s gaze moved across the room, taking in the replaced talismans, the scraped wall, the beam where the curse had gathered, the faint marks on the stone outside where Rei’s small heels had skidded through rain.
“You wrote something small enough to survive”
“I wrote what can be proven”
“That is not the same thing”
“No” Haruto said “It is not”
The lantern flame bent slightly.
Neither of them moved.
Sayuri stepped inside and closed the door behind her. The storehouse seemed smaller with her in it, not because she had a loud presence, but because she had a steady one. Sayuri Mikage had never been the strongest person in any room. She had made a life out of being the person no one noticed until she had already understood what everyone else was hiding.
“What did you see in the residue?” she asked
Haruto placed the sealed report on the floor between them.
“Enough to know that Rei did what we are saying he did”
“And?”
He looked down at the paper.
“And not enough to know how”
Sayuri lowered herself beside him.
For a while, the only sound was the faint creak of old wood as the storehouse settled around them.
“He is five” she said
“Yes”
“He should not be able to reinforce his arms under panic”
“No”
“He should not be able to read a thread that thin”
“No”
“He should not have looked at me yesterday and chosen every word like a man negotiating with a superior”
Haruto closed his eyes.
That, too, had been noticed.
Of course it had.
“He is frightened” Haruto said
“So are we”
“That does not make him dangerous”
Sayuri turned her head toward him.
“No” she said “It means something has already taught him danger”
Haruto had no answer.
Beyond the storehouse, the estate was beginning to wake. A servant crossed the far veranda with a bucket. A crow landed on the wall, shook snowmelt from its feathers, and stared into the courtyard as if offended by the morning. Somewhere in the main house, Rei was probably asleep beneath too many blankets, his bruised arms wrapped carefully in medicine and cloth.
A child.
Their child.
A secret with a fever.
Sayuri touched the sealed report.
“The higher-ups will read this?”
“Not directly” Haruto said “It will go through the local registry first. A minor incident involving a minor family will not be worth much attention”
“Because of Gojo”
“Because of Gojo” Haruto agreed
The Gojo child had done nothing except be born, and already he was useful to Rei.
Every important gaze had turned toward Tokyo. Every whisper sharpened itself around the Six Eyes. Every clan was calculating around one newborn star bright enough to blind the world.
A small boy from a small Kyoto family could still hide beneath that light.
For now.
Sayuri drew her robe tighter around herself.
“If they send someone to test him?”
“They will”
“How soon?”
“A week. Perhaps less”
Sayuri’s mouth tightened.
Haruto knew what she was imagining.
An old inspector with dry hands. A Kyoto administrator with too much authority and too little mercy. A clan representative pretending casual interest. A barrier specialist. A technique evaluator. Someone who would smile at Rei, offer a sweet, ask him to touch a charm, then write down how much of him belonged to the family and how much might belong to someone else.
Haruto picked up the report.
“Then we teach him before they arrive”
Sayuri looked at him sharply.
“To lie?”
“To survive”
This time, she did not correct him.
Rei learned his first formal lesson in deception while sitting on a cushion with both arms bandaged and a cup of bitter medicine cooling beside his knee.
His father placed three talismans on the floor.
His mother placed three sweets beside them.
Rei looked between the two offerings and understood immediately that the sweets were not a kindness. They were measurement. Reward, distraction, softness placed beside danger to see which one his eyes followed first.
He chose not to look at either.
Haruto noticed.
Sayuri noticed that Haruto noticed.
Rei pretended not to notice any of it.
The room was too warm. Incense coiled near the shrine alcove. Morning light slid through the paper screens in pale rectangles, touching the floor without warmth. The bruises on his forearms had darkened overnight, yellow at the edges and purple at the center, like small storms trapped beneath skin.
Haruto sat across from him.
“Tell me what happened in the courtyard”
Rei had expected this.
That did not make it easy.
He was five years old, and his tongue still belonged to a child. Complex thoughts stumbled on a body not yet built to hold them. Sometimes words came too slowly. Sometimes memories from before tried to rise in a language no one here spoke. Sometimes he wanted to say anime or manga or plot and had to bury the concepts before they reached his face.
He folded his hands in his lap.
“I saw the curse”
Haruto nodded.
“What did it look like?”
“Small. Wet. Too many fingers”
Sayuri’s expression did not change, but the tea cup in her hand paused near her mouth.
Haruto continued.
“What did you feel?”
Rei thought of the System opening behind his eyes.
He thought of the black screen.
He thought of Kusakabe Atsuya, a name from a future that had not happened yet.
He said “Scared”
“That is not enough”
Rei looked up.
Haruto’s voice was not unkind. That made it worse.
“If you say only that you were scared, they will ask what you did while scared. If you say you do not remember, they will test your memory. If you say instinct moved you, they will ask what instinct. Fear is true, but truth alone is not always useful”
There it was again.
Useful.
Sayuri watched Rei over the rim of her cup.
Haruto touched the first talisman.
“This one reacts to cursed energy reinforcement. Touch it”
Rei touched the edge of the paper.
Nothing happened.
“Now reinforce your finger”
Rei hesitated.
He could feel cursed energy now more clearly than before. Kusakabe’s template did not give him strength exactly. It gave shape. It made the dark warmth under his skin less like smoke and more like breath. It did not move for him unless he moved it, but when he tried, there was a path where before there had been only instinct.
That was dangerous.
If he used it too cleanly, his father would know.
If he used it too poorly, the talisman would not react.
He pushed a thread of cursed energy into his fingertip.
The paper trembled.
A faint blue line crawled along its edge.
Haruto’s gaze sharpened.
Too much.
Rei let the energy flicker and collapse.
The line died.
He winced as if frustrated.
Haruto said nothing for several seconds.
Then he touched the second talisman.
“This one reacts to Residual Threading. Not reinforcement. Threading. Touch it and tell me what you see”
Rei did.
At first, nothing.
Then the room unfolded.
Not visually. Not exactly. The Mikage technique did not overlay the world with bright lines like the System did with text. It was subtler. A suggestion of direction. A tug behind the eyes. A sense that the talisman had been held by his father three times, brushed by his mother once, and stored beside cedarwood for long enough that the scent clung to the residue.
There were threads.
Faint ones.
Rei swallowed.
“Father touched it”
Haruto waited.
“Mother too. Less”
Sayuri set her tea down.
“What else?” Haruto asked
Rei almost answered.
Cedarwood.
Ink from the west cabinet.
A servant with rough hands had carried the stack.
The paper had been cut from a larger sheet two months ago.
He stopped himself.
“Nothing else”
Haruto looked at him.
Rei looked back with the empty stubbornness of a child who had reached the limit of what he could explain.
After a moment, Haruto removed his hand from the talisman.
“If an evaluator asks, that is what you say. You saw the dominant threads only. Mine and your mother’s. Nothing more”
Rei nodded.
Sayuri picked up one of the sweets and placed it in front of him.
He did not eat it.
That was probably another mistake.
His mother smiled faintly, as if he had confirmed something she did not want confirmed.
“The first rule” Haruto said “Do not show the full shape of what you can see”
Rei repeated it.
“Do not show the full shape”
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“The second rule. Never lie where ignorance is safer”
Rei frowned.
Haruto tapped the third talisman.
“If someone asks whether you can read a barrier formula, do not say no if you can be tested. Say you do not understand the question. Say Father has not taught me. Say I saw a line but it hurt my eyes. Adults forgive ignorance in children more easily than deception”
Rei absorbed that.
Not because he was a child.
Because he had once been old enough to know exactly how true it was.
“And the third rule?” Rei asked
Sayuri answered this time.
“Let important people underestimate you”
Her voice was gentle.
Her eyes were not.
“Especially when they are kind”
That lesson frightened him more than the curse had.
The evaluator arrived four days later.
He was not old.
Rei had expected old. Wrinkled hands, dusty robes, sour breath, the kind of man who looked like he had been carved from tradition and left too long in a locked room. Instead, the evaluator was perhaps thirty, with narrow shoulders, neat hair, and a pleasant face arranged into the expression adults used when they wanted children to feel safe.
His name was Masamichi Arai.
He introduced himself as a registry assistant from Kyoto.
Haruto introduced him to Rei as “Arai-san”
Sayuri introduced him with tea that he accepted.
That meant either he was less frightened than the messenger had been, or better trained.
Rei sat beside his father in the receiving room and tried to look like a recovering child who had awakened a minor family technique early, not a reincarnated soul with an impossible archive living behind his eyes.
Arai smiled at him.
“So you are Rei-kun”
Rei bowed.
“Yes”
“I heard you were very brave”
Rei looked at the floor.
“I was scared”
Arai laughed softly.
“That is usually what brave means”
Rei did not answer.
Across the room, Haruto’s fingers rested loosely on his knee. Sayuri poured tea with perfect calm. Neither of them looked tense. That meant both of them were.
Arai opened a small wooden case and removed several folded papers, a black bead, a thin needle wrapped in thread, and a child-sized charm board.
“Nothing painful” he said “We only need to see how your cursed energy is developing. Early awakenings can be confusing”
Rei nodded.
The first test measured raw cursed energy.
He passed badly on purpose.
Not too badly.
That was important.
A child from a jujutsu family who had survived a curse but barely registered energy would invite one kind of attention. A child overflowing with energy would invite another. Rei aimed for useful. Modest. Slightly promising. Unthreatening.
He let cursed energy leak into the bead.
It warmed.
Arai watched.
The bead darkened from black to a faint bruised purple.
“Decent” Arai said
Haruto’s face remained neutral.
Rei knew he had chosen correctly because his father did not praise him.
The second test measured reinforcement.
Rei made his cursed energy uneven.
Too much in the palm, not enough in the wrist. A child’s mistake. A real one, if not natural. The charm board flashed once, weakly.
Arai hummed.
“Instinctive, not trained”
Haruto inclined his head.
“He has only just begun”
The third test measured the inherited technique.
This one was harder.
Arai placed the needle on the floor, tied the thread around it, and brushed cursed energy over the thread in several directions. To ordinary eyes, it was only thread. To Rei, it became a knot of traces, paths, handling, intention, residue, and something faintly metallic from the needle itself.
“Tell me which way it points” Arai said
Rei could have told him fourteen things.
He told him two.
“That way” he said, pointing to the left “And back to you”
Arai’s eyebrows rose.
Haruto’s face did not move.
Sayuri’s tea cup touched the table without a sound.
“Back to me?” Arai asked
Rei remembered the second rule.
He frowned down at the thread.
“I think. Maybe. It feels like your hand”
Arai’s smile changed.
Not vanished.
Changed.
More interested now.
“That is quite good”
Rei immediately looked embarrassed.
“Did I do it wrong?”
“No, no. Not wrong”
Arai leaned forward slightly.
“Can you see anything else?”
Ignorance was safer than denial.
Rei shook his head.
“It hurts if I try”
“Your eyes?”
Rei hesitated.
Then nodded.
Arai wrote something down.
The test continued for almost an hour.
By the end, Rei had built a small, careful portrait of himself for the registry.
Early manifestation.
Moderate cursed energy.
Instinctive reinforcement.
Above-average Residual Threading sensitivity.
Possibly useful for investigation or support.
Not a combat prodigy.
Not a threat.
Not worth stealing.
Not worth killing.
Not worth watching too closely.
Arai closed the wooden case.
“Your son is talented” he said to Haruto
Haruto bowed his head slightly.
“You are generous”
“Not excessively. His cursed energy reserves are not remarkable, but his sensitivity is unusual for his age. With training, he may become a valuable support sorcerer”
Useful.
The word did not need to be spoken.
Rei could feel it settle around the room like a protective veil.
Arai looked at him again.
“You did well, Rei-kun”
“Thank you”
“Do not rush. Children who awaken too early sometimes become impatient”
Rei looked at him with wide, obedient eyes.
“I will listen to Father”
Arai smiled.
“I am sure you will”
For the first time since the man entered, Rei wondered if Arai believed any of it.
Not everything. No one would guess everything.
But perhaps enough to know there were corners in the report that had been folded too neatly.
When Arai rose to leave, Haruto escorted him to the gate.
Sayuri remained with Rei.
The moment the men left the room, Rei’s shoulders dropped.
Sayuri reached across the table and took his hand.
Her grip was soft.
“You did well” she said
Rei nodded.
Then, because he was tired, bruised, five, older than five, and more afraid than he wanted to be, he whispered “Did I?”
Sayuri’s thumb brushed over his knuckles.
“You showed enough to be valued and not enough to be desired”
It should not have comforted him.
It did.
Outside, Arai’s voice drifted faintly from the gate.
“Everyone is nervous because of the Gojo birth” he was saying “The registry is overcorrecting. You understand”
Haruto answered too quietly for Rei to hear.
Arai laughed.
“Still, you should be grateful. A support type is safer these days. Any child with obvious combat potential will be measured against Satoru Gojo now. That is not a blessing”
Rei looked toward the screen.
Sayuri’s hand tightened around his.
Arai continued, voice fading as he stepped into the courtyard.
“There are rumors already. Curse users asking prices. Assassins testing routes. Even weak curses are becoming restless. The boy has not learned to walk, and the world is already trying to decide whether to worship him or kill him”
The gate opened.
Snow slipped through the air outside.
Arai’s final words carried back with terrible clarity.
“Imagine being born the strongest”
The gate closed.
Rei stared at the floor.
Satoru Gojo was somewhere far away, still an infant, still unable to understand the shape of the cage being built around his name.
Rei had thought of him as a character for most of his first five years.
A problem. A plot point. A force of nature with white hair and an unbearable grin waiting somewhere in the future.
Now, for the first time, he imagined him as a baby.
Small.
Watched.
Priced.
Hunted.
Loved, perhaps, but never safely.
The thought made something twist in his chest.
Sayuri released his hand.
“You are tired”
“Yes”
“Go rest”
Rei stood.
At the door, he paused.
“Mother”
She looked at him.
“If someone is too strong, are they safer?”
Sayuri did not answer quickly.
That meant she respected the question.
Finally, she said “Sometimes strength is armor. Sometimes it is a lantern”
Rei understood.
Armor protected.
Lanterns attracted things from the dark.
That night, Rei waited until the estate slept.
He should not have.
His arms had mostly healed, but his body still ached from the test. The sensible thing would have been to sleep, recover, remain a child for as long as he could pretend to be one. Kusakabe’s template sat steady in his Foundation Slot, shaping his cursed energy into something cleaner than it had any right to be. He had survived the evaluator. The report would pass. His family had bought time.
But time was not safety.
Time was only the space between disasters.
Rei lay beneath his blanket and opened the System.
[Cursed Archive Roulette]
Host: Rei Mikage
Current Status: Juvenile vessel
Active Loadout:
Cursed Energy Foundation Slot:
- Cursed Energy Control — Kusakabe Atsuya
Body / Physical Template Slot:
- Empty
Archive:
- Kusakabe Atsuya — Cursed Energy Control
Available Extraction:
- Body / Physical Template
Locked Categories:
- Cursed Energy Quantity
- Cursed Energy Output
- Cursed Energy Efficiency
- Cursed Energy Reinforcement
- Cursed Energy Attribute
- Innate Technique
- Reverse Cursed Technique
- Barrier Technique
- Domain Expansion Blueprint
- Combat Skill Template
- Cursed Tool Mastery
- Binding Vow Aptitude
- Soul Perception / Soul Resistance
The words floated in the dark behind his eyes.
Available Extraction.
Body / Physical Template.
Rei had avoided thinking about it during the day because thinking about it made him feel like a thief standing in front of graves that had not been dug yet.
Templates came from people.
Maybe not stolen. Maybe not harmed. The System had not explained, and Rei did not trust explanations that had not been demanded at knifepoint.
But the names were real.
Kusakabe was real, even if Rei had not met him yet.
Gojo was real.
Geto would be real.
Yuji Itadori would be real one day.
Maybe.
The thought caught.
Yuji.
Pink hair. Ridiculous strength. A grandfather’s last words. A finger swallowed under fluorescent school lights. A cage made of flesh and Sukuna’s laughter. A boy sentenced to death before he understood the crime.
Rei’s stomach tightened.
Can it extract from the future?
He had wondered since the first night.
The System knew Kusakabe, who already existed somewhere in the world. That proved little. But the locked categories contained names in potential, and Rei’s memory contained people not yet born. If the archive was built from his knowledge, perhaps future templates existed as impressions. If it was built from the world itself, perhaps not.
He should not test it.
Testing unknown powers in secret was stupid. Every horror story in both lives had taught him that. Every jujutsu rule he half-remembered supported the same conclusion. Unknown techniques had conditions. Conditions had costs. Costs did not always announce themselves beforehand.
He should wait.
He selected Body / Physical Template.
[Category selected: Body / Physical Template]
[Archive Roulette spinning]
Rei stopped breathing.
Names flickered too quickly to read.
For a moment, he thought he saw Toji.
Maki.
Miguel.
Sukuna.
Then the spinning stopped.
[Template extracted]
[Yuji Itadori]
[Category: Body / Physical Template]
[Template Type: Future-Imprint]
[Timeline Anchor: Absent]
[Template archived]
[Equip available]
Rei went cold.
Not because it was strong.
Because it was impossible.
Yuji Itadori had not been born.
His body did not exist yet. His soul had not entered the world. His role had not begun. The finger had not been eaten. The vessel had not become a vessel.
And yet the System had found him.
The interface continued.
[Warning]
[Future-Imprint template lacks present-world anchor]
[Effects will express as developmental foundation rather than full adult output]
[Juvenile vessel limitations enforced]
[Equip?]
Rei read the warning again.
Not compatibility.
Not rejection.
Limitations based on body.
Age.
Development.
The System was not saying he could not use Yuji’s body template.
It was saying a five-year-old body could not become a teenager’s battle-ready vessel overnight without tearing itself apart.
That was almost comforting.
Almost.
Rei thought of the curse under the eaves.
He thought of Arai’s smile.
He thought of his father writing a report small enough to save him.
He thought of Gojo, infant and hunted because he had been born too bright.
Then he made another bad decision.
Equip
The System responded.
[Body / Physical Template equipped]
[Yuji Itadori — Future-Imprint]
[Expression Mode: Developmental]
[Primary Effects:
- increased physical growth potential
- increased muscular coordination
- increased impact tolerance
- increased vessel stability
- increased resistance to internal cursed interference]
[Current output scaled to juvenile body]
[Masking Protocol: Locked]
For three seconds, nothing happened.
Then Rei’s body remembered it was five.
Every muscle seized at once.
He clamped both hands over his mouth before he could scream.
Pain moved through him like a second skeleton growing in the wrong direction. Not the sharp pain of injury, but deep pressure, unbearable and intimate, as if his bones had become aware of themselves. His heart hammered. His stomach lurched. His vision went white at the edges.
He curled beneath the blanket, shaking.
The System did not apologize.
Of course it did not.
[Developmental template integration in progress]
[Estimated acute discomfort: moderate]
[Recommended: rest]
Moderate?
The thought was so offended it almost became a laugh.
His foot struck the wall.
He froze.
Outside his room, a floorboard creaked.
Rei forced his cursed energy to settle.
Kusakabe’s template helped.
Breath in.
Hold.
Breath out.
Contain the pain. Do not fight it everywhere. Find the edge. Reinforce nothing unless necessary. Let the body adapt. Do not flood. Do not leak.
His door slid open.
Haruto stood there in the dark.
Rei went still beneath the blanket, sweat cooling on his skin.
His father’s gaze moved around the room once, then settled on him.
“You are awake”
Rei’s throat hurt.
“Yes”
“Pain?”
A lie would be foolish. A full truth would be worse.
“My arms”
Haruto entered and knelt beside him.
The room was too dark to see clearly, but not too dark for jujutsu. Rei felt his father’s cursed energy brush the air, thin and careful, searching the residue around him.
For one awful moment, Rei wondered if Yuji’s template had left some impossible future-shaped trace clinging to his bones.
Haruto’s expression remained unreadable.
“Show me”
Rei pushed the blanket down enough to reveal his bandaged forearms.
Haruto checked the bruises.
His hands were gentle.
His eyes were not.
“The swelling has gone down”
Rei nodded.
“Then why are you sweating?”
Rei said nothing.
Haruto looked at him.
Rei looked at the wall.
The silence stretched.
Finally, Haruto sighed.
“Rei”
The name landed heavier than any accusation.
“You do not need to tell me everything tonight”
Rei’s eyes stung.
That was worse.
Kindness was harder to defend against than suspicion.
Haruto rewrapped one bandage that had loosened.
“But one day, secrecy will become too heavy for a child’s hands. When that happens, you come to me or your mother before it crushes you”
Rei swallowed.
He wanted to say I can’t
He wanted to say You wouldn’t believe me
He wanted to say There is a man with stitches in his head who might be older than our entire family line, and if he learns what I am, I don’t know what happens
He wanted to say I’m not really your son, except I am, and I don’t know which truth is crueler
Instead, he whispered “I know”
Haruto watched him for another moment.
Then he placed a small charm on the wall beside Rei’s bed.
“For pain. It will not heal, but it will steady your breathing”
“Thank you”
Haruto stood.
At the door, he paused.
“The evaluator’s report will likely classify you as support-inclined”
Rei turned his head.
“Is that bad?”
“No”
Haruto’s mouth tightened.
“It is safer”
Then he left.
The door slid shut.
Rei lay awake for a long time afterward, listening to the charm pulse quietly against the wall.
By morning, the pain had dulled.
By afternoon, Rei noticed the first change.
He did not trip.
That sounded small because it was.
Five-year-old bodies were clumsy things. Rei had hated that from the beginning. His mind expected balance his limbs could not provide. He reached too far, stepped too short, misjudged weight, forgot that fingers were small, legs were short, and the floor was always farther away than memory insisted.
After equipping Yuji’s template, that gap narrowed.
He still moved like a child.
But less like a trapped adult pretending not to resent gravity.
When he crossed the veranda, his feet placed themselves more naturally. When he caught a falling cup, his hand moved before panic. When Sayuri asked him to carry a bundle of paper seals, his arms did not tire as quickly. When he slipped on frost near the courtyard stones, his body twisted and recovered instead of falling.
Small things.
Useful things.
Terrifying things.
Over the next week, Rei learned the first law of his System without being told.
A template was not only what it gave.
It was what it made possible.
Kusakabe’s control did not make him strong, but it allowed him to use cursed energy without flailing.
Yuji’s body did not make him superhuman overnight, but it gave his growing body a direction: stronger joints, better coordination, deeper stamina, a strange resilience that made bruises fade slightly faster and impacts hurt less than they should.
Together, they created something that looked like talent.
Not prodigy.
Talent.
That was survivable.
Haruto began training him every morning.
Not formally, not in a way that would alarm the registry. No combat drills with wooden blades. No technique exercises that would be written into family records. Nothing that said the Mikage heir was being shaped into more than a support sorcerer.
Breathing.
Posture.
Balance.
How to feel cursed energy without showing it.
How to touch residue without staring at it.
How to fall.
That lesson came often.
Haruto would stand across from him in the courtyard and say “Again”
Rei would step forward, reach for a hanging strip of paper, misplace his weight by design or accident, and Haruto would sweep his leg.
The first time, Rei hit the ground hard enough to cry.
The second time, he bit his lip bloody.
The third time, Yuji’s template moved before pride could interfere. He twisted, slapped one hand against the stone, and rolled badly but safely.
Haruto’s eyes narrowed.
Rei immediately groaned and clutched his shoulder longer than necessary.
His father looked unconvinced.
“Again” Haruto said
Sayuri watched from the veranda with tea in her hands and said nothing.
Again became the shape of winter.
Again, until Rei learned how much strength to hide.
Again, until he could make a correct movement look like luck.
Again, until he understood that underperforming was harder than performing.
Again, until he stopped resenting his body for being small and started treating smallness as another form of cover.
At night, when the estate slept, Rei opened the System and studied what remained locked.
Cursed Energy Quantity
Cursed Energy Output
Cursed Energy Efficiency
Cursed Energy Reinforcement
Cursed Energy Attribute
Innate Technique
Reverse Cursed Technique
Barrier Technique
Domain Expansion Blueprint
Combat Skill Template
Cursed Tool Mastery
Binding Vow Aptitude
Soul Perception / Soul Resistance
Each category was a future.
Each future was a weapon.
He imagined combinations and frightened himself.
Yuta’s reserves with Gojo’s efficiency.
Ryu’s output with Sukuna’s control.
Yuji’s body with Todo’s reinforcement.
Kusakabe’s fundamentals with Toji’s combat instincts.
Nanami’s Ratio Technique as a public mask.
Tengen’s barriers as a support identity.
Shoko’s RCT hidden beneath bandages and excuses.
Sukuna’s Shrine locked away like a blade he hoped never to need.
Limitless archived somewhere behind the name of the child everyone was already watching.
The thought of it made his pulse quicken.
Then he remembered Shibuya.
He remembered the Prison Realm closing.
He remembered Gojo laughing, bleeding, sealed.
He remembered Geto’s body moving with someone else inside it.
He remembered Yuji screaming.
Power did not guarantee salvation.
In JJK, power often arrived just in time to make failure more expensive.
So Rei studied the locked categories and forced himself to think like a Mikage.
Not How do I become strongest?
That was Gojo’s word.
His question had to be smaller.
Sharper.
Crueler.
What can I become without being seen?
Spring came quietly.
Snow thinned into rain. Rain softened into damp wind. The estate garden woke in cautious greens. Servants stopped whispering about the storehouse curse and began whispering about other things. A sick aunt. A delayed payment from a minor branch family. A Zenin dispute no one wanted to discuss too clearly. A rumor that two curse users had been found dead after attempting to approach a Gojo route and that their bodies had been returned in pieces small enough to fit inside a lacquered box.
Rei listened.
Children were ignored when adults believed them occupied.
He became very good at seeming occupied.
Stacking blocks while servants talked.
Tracing characters while his father received messages.
Sitting half-asleep against Sayuri’s side while she reviewed household accounts and visiting sorcerers forgot a child could remember names.
By the time he turned six, Rei had collected more information than anyone intended to give him.
The Gojo heir was healthy.
The Gojo heir was already showing signs of perception that unsettled grown sorcerers.
The Gojo clan was refusing unnecessary visitors.
The Zenin were furious about several political concessions.
The Kamo were quiet, which meant they were not idle.
Weak curses near schools had increased.
Two minor families had lost children to accidents that sounded too clean.
The jujutsu world had not changed loudly after Satoru Gojo’s birth.
It had tightened.
Like a hand closing.
On Rei’s sixth birthday, Haruto gave him a wooden practice knife.
It was not sharp.
It was not even well balanced.
But it fit his hand.
Sayuri gave him a small charm pouch lined with protective stitching.
Inside was a blank talisman.
“For when you learn what you want written on it” she said
Rei held both gifts with a seriousness that made his mother look away for a moment.
That evening, Haruto took him to the outer courtyard after the servants had withdrawn.
The sky was clear.
The air smelled of wet earth and old stone.
A single lantern burned near the training post.
Haruto stood before him.
“You will be registered for preliminary instruction next year”
Rei tightened his grip on the wooden knife.
“With other children?”
“Some”
“From Kyoto?”
“Mostly”
Rei nodded.
That meant eyes.
Not many, but enough.
Children of minor families. Instructors. Assistants. Evaluators. Perhaps someone from the Kamo side, if they were unlucky. Perhaps a Zenin child, if the universe wished to be openly hostile.
Haruto watched his face.
“You are thinking too much”
Rei looked down.
“Yes”
“What are you thinking?”
The truth rose before he could stop it.
“That I need to look normal”
Haruto was silent.
A moth struck the lantern glass once, twice, then fell away.
Finally, his father said “Normal is impossible”
Rei looked up.
Haruto’s face was half shadow.
“You see curses. You carry our technique. You were born into jujutsu. Normal belonged to other children before you took your first breath”
Rei’s hand tightened around the knife.
“Then what should I look like?”
“Useful” Haruto said
There it was again.
But this time, the word felt less like a cage.
Haruto stepped closer and adjusted Rei’s grip on the wooden knife.
“Useful children are trained. Watched, but not feared. Given work, but not worshipped. Corrected, but not destroyed for threatening someone’s pride. If you look weak, they may discard you. If you look extraordinary, they may take you apart to learn why”
His hand rested briefly over Rei’s.
“So become useful”
Rei looked at the practice post.
Useful.
Not weak.
Not ordinary.
Not strongest.
Useful was the space between being ignored and being consumed.
Useful could survive.
For now, that was enough.
Haruto stepped back.
“Show me your stance”
Rei raised the wooden knife.
Too good.
He felt it immediately.
His feet had placed themselves correctly. His shoulder had relaxed. His wrist had aligned. Kusakabe’s control and Yuji’s body made the movement natural in a way it should not have been.
Haruto saw it.
Of course he saw it.
Rei shifted his back foot slightly out of place.
Haruto’s eyes narrowed.
“Do not insult me”
Rei froze.
His father’s voice was quiet.
“If you hide from others, do it well. If you hide from me, understand that I will notice when you do it badly”
Rei’s throat tightened.
“I’m sorry”
“Again”
This time Rei took the stance properly.
Haruto examined him for a long moment.
Then, unexpectedly, he smiled.
Not much.
Enough.
“There”
Rei blinked.
“But you said useful”
“Useful does not mean incompetent”
Haruto lifted one hand and pointed toward Rei’s feet.
“You will not survive by pretending to be worse than you are every second of your life. That kind of lie becomes clumsy. Show them something believable. Give them a shape they can understand. A support child with excellent discipline. A Mikage with unusually good control. A boy who trains hard because his technique is not suited for direct combat”
The words settled into Rei like a blueprint.
“A mask works best when it resembles a face” Haruto said
Rei looked at his father.
He wondered how much Haruto knew.
Not about the System. Not about reincarnation. Those were too large, too impossible, too far beyond the vocabulary of their family.
But about him.
About the way he watched adults.
The way he chose words.
The way he moved.
The way fear lived in him like memory rather than instinct.
Haruto did not ask.
Perhaps that was mercy.
Perhaps that was strategy.
Perhaps, in the Mikage family, those had always been the same thing.
Rei raised the wooden knife again.
This time, he chose the shape carefully.
Good.
Disciplined.
Young.
Limited.
Useful.
Haruto nodded.
“Again”
Rei moved.
The wooden knife struck the post with a soft crack.
Not hard enough to impress.
Not weak enough to disappoint.
Again.
Crack.
Again.
Crack.
Again.
The night deepened around them.
Somewhere far away, Satoru Gojo was growing beneath the weight of every gaze that mattered.
In Kyoto, Rei Mikage learned the exact amount of strength a child could show without becoming prey.
The System remained silent behind his eyes.
For once, Rei was grateful.
He did not need a notification to understand what he had gained that night.
Not a template.
Not a category.
Not a new slot.
A mask.
And in the world of jujutsu, a good mask could be worth more than a technique.
By the time Haruto finally ended the lesson, Rei’s palms were sore and his arms trembled from exhaustion. Yuji’s template did not erase fatigue. It only made fatigue arrive later and teach more when it came.
Haruto took the wooden knife from him.
“Enough”
Rei bowed.
His father turned toward the house, then stopped.
“One more thing”
Rei straightened.
Haruto looked back at him.
“If one day you become more than useful, do not let anyone else be the first to tell you what that means”
Rei did not breathe for a moment.
The lantern flame flickered.
Then Haruto walked away.
Rei remained in the courtyard until the cold reached his fingers.
When he finally opened the System, only one line waited for him.
[Masking Protocol requirements partially identified]
[Condition: construct a believable public self]
[Progress: initiated]
Rei stared at the words.
Then, slowly, he smiled.
It was not a happy expressioas too small for that.
But it was real.
He closed the interface and looked toward the dark eastern sky, toward Tokyo, toward the infant everyone feared and worshipped without yet knowing the boy he would become.
“Keep looking at him” Rei whispered
No one heard.
That was the point.