December 15.
Nine days remained until the final battle.
Inside the infirmary of Tokyo Jujutsu High.
The air smelled strongly of disinfectant and cigarette smoke.
Medical equipment filled every surface.
Boxes of medicines.
Surgical tools.
And—
Several corpses laid out on examination tables.
Shoko Ieiri sat at her desk, dark circles under her eyes deeper than ever.
She had barely slept for days.
The door creaked open.
"Shoko… how is it going?"
Entering the room was Masamichi Yaga.
The principal of Tokyo Jujutsu High.
He looked at the exhausted doctor with concern.
Still holding a cigarette, Shoko rubbed her temples.
"Still testing."
Her voice was hoarse.
"The Reverse Cursed Technique can restore physical damage."
"But its effectiveness against soul damage is extremely limited."
Yaga frowned.
Soul damage was the most troublesome kind of injury in jujutsu.
Especially when inflicted by enemies like Ryomen Sukuna or Kenjaku.
Their attacks could affect the structure of the soul itself.
Even if the body healed—
The person could remain permanently crippled.
Shoko continued quietly.
"In the Shibuya Incident…"
"Aoi Todo lost his hand."
"And Nobara Kugisaki nearly died."
"Both injuries involved damage to the soul."
"If we can't deal with that…"
"Saving them won't matter."
"They'll never fully recover."
The room fell silent.
Then Shoko suddenly picked up a syringe.
Inside was a pale blue liquid.
Yaga blinked.
"What is that?"
Shoko answered calmly.
"A prototype."
"A soul stabilization serum."
Yaga's eyes widened.
"Soul… stabilization?"
Shoko nodded.
"I developed it using two things."
"Yuta's Reverse Cursed Technique…"
"And the vector analysis data provided by Yagami Sora."
She continued explaining.
"Sora believes the soul behaves like a complex energy structure."
"Similar to vectors."
"If we can identify the pattern of the structure…"
"We can guide cursed energy to repair it."
"I can't manipulate vectors like he does."
"But medicine can guide the healing energy."
Shoko approached one of the corpses.
It was a body recovered after a curse attack that had shattered the soul.
She injected the serum directly into the brain.
Then formed a hand sign.
"Reverse Cursed Technique."
Soft white light filled the room.
Then—
The corpse twitched.
Yaga gasped.
Although the body remained dead—
The void left by the destroyed soul had stabilized.
A faint energy fluctuation appeared where there had previously been nothing.
"It worked…"
Yaga whispered.
Shoko shook her head.
"Not yet."
"This only works on corpses."
"A living soul is far more complex."
"And in combat…"
"There isn't time for delicate treatment."
She turned toward a massive refrigerated cabinet.
"Which is why I made this."
Yaga opened it.
Inside were hundreds of syringes.
Each labeled carefully.
"Gojo Satoru — High Output Stabilizer"
"Yuta Okkotsu — High Capacity Regeneration"
"Yuji Itadori — Anti-Curse Adaptation"
"Special Reserve — Soul Stabilizer"
Yaga stared in disbelief.
"These are…"
Shoko exhaled smoke slowly.
"Emergency life-support injections."
"I've recorded the cursed energy wavelengths of everyone fighting on the front lines."
"If they're critically injured…"
"One injection will stabilize their cursed energy and keep them alive."
Even if they were seconds from death.
Then Shoko pointed toward a massive machine beside the wall.
It resembled a modified dialysis unit.
But dozens of cursed-energy conduits were attached to it.
Yaga frowned.
"What is that for?"
Shoko answered calmly.
"If things get really bad…"
"I'll connect myself to it."
Yaga froze.
"That machine converts Reverse Cursed Technique into a distributed healing flow."
"It can transmit my cursed energy directly to the battlefield."
"In other words…"
"I'll become a healing amplifier."
The tubes would deliver her life force to multiple fighters simultaneously.
Yaga stared at her.
"Shoko… that could kill you."
She lit another cigarette.
Her expression didn't change.
"Satoru is risking his life."
"The students are risking theirs."
"How could I sit here safely?"
Her voice remained quiet.
But every word carried iron resolve.
"I'm not a fighter."
"But as long as I'm alive…"
"I won't let them die before me."
The smoke slowly filled the room.
Shoko leaned back in her chair.
Her eyes were calm.
Determined.
The determination of a doctor.
And the resolve of a jujutsu sorcerer.
Yaga inhaled deeply.
Then nodded.
"…Alright."
"The logistical support of Tokyo Jujutsu High…"
"I'm leaving it to you."
Shoko smirked faintly.
"Relax."
She tapped her scalpel against the table.
"If anyone tries to die on my watch…"
"They'll have to argue with my scalpel first."
On a battlefield filled with monsters—
Shoko Ieiri had prepared her own way to fight.
Not with cursed techniques.
Not with overwhelming power.
But with medicine.
And the unwavering resolve to protect everyone.
Even if it cost her last drop of blood.
She would not hesitate.
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