Mid-afternoon light filtered through the curtains of Akari Hayashi's bedroom as she sat cross-legged on her bed, staring at the glowing blue screen hovering in front of her.
She had been thinking about it for days.
Rinne-Sharingan.
The ultimate dojutsu from the Naruto universe—full chakra affinity, Six Paths powers, planetary devastation potential, truth-seeking orbs, infinite Tsukuyomi capability if pushed far enough. With that and her Boosted Gear, she could become something unstoppable in this world.
She opened the System Shop with a thought.
System Shop – Main Menu
Buy
Sell
She tapped Buy without hesitation.
The catalog unfolded in an endless scrolling wall of text and glowing icons. She swiped straight to the high-tier section she had bookmarked mentally, eyes narrowing as the entry appeared.
Rinne-Sharingan (Full Chakra Affinity Package)
Complete ocular transplant + instinctive mastery
All Rinnegan abilities + Tenseigan-level chakra control
Six Paths techniques, planetary devastation, truth-seeking orbs, infinite genjutsu potential
Cost: 40,000,000 System Points
Current System Points: 20,000,000
Akari stared at the number.
Forty million.
It had been twenty million the last time she checked.
"What the fuck?" she muttered, voice flat with irritation. "Did the price just double on purpose? Man, seems like I won't be able to buy it anytime soon… but I don't care anymore. I'll buy something else later."
She flicked the screen away with a dismissive wave of her hand. The catalog vanished. She wasn't going to sit here seething over a price hike. She had time.
For now, she had other things to do.
Timeskip to Evening
The sun had already dipped below the rooftops, painting Kuoh Town in deep oranges and purples. Akari strolled along the quiet sidewalk near the old district churches, hands in her pockets, crop top fluttering slightly in the cool breeze.
She wasn't hunting tonight—just clearing her head after the shop disappointment and the strange morning encounter with Akeno.
She turned a corner without looking—
—and collided gently with someone small and soft.
"Ah—!"
Akari steadied the other person on instinct, blinking down at the figure she had bumped into.
A petite blonde nun in a black-and-white habit, green eyes wide with surprise, a small travel bag clutched to her chest. Asia Argento—the real one—stood there, cheeks already flushing pink.
Akari's lips curved into an easy, disarming smile.
"Didn't see you there, cute nun."
Asia blinked rapidly, then looked down shyly, fiddling with the hem of her habit.
"Um… it's okay…"
Akari tilted her head, keeping her tone light and friendly.
"Oh well… wanna hang out? I was just walking around with nothing to do."
Asia hesitated for a long moment, green eyes flicking up to meet Akari's. She seemed to weigh the offer—stranger in a strange town, but something in Akari's relaxed posture must have felt safe—because she gave a tiny, hesitant nod.
"Sure… why not."
They walked together.
First to the small park nearby, where they sat on a bench and talked about nothing important, Asia's journey to Kuoh, how the town felt both beautiful and overwhelming, how she hoped to find a place where she could help people. Akari listened, nodding at all the right moments, never pushing, letting the shy nun open up naturally.
Then they wandered to the little ice-cream stall just outside the park gates.
Akari paid for both—matcha for herself, strawberry swirl for Asia—using actual cash from her pocket even though she could have summoned anything. They ate while walking, laughing softly when Asia got a bit of ice cream on her nose and Akari wiped it away with a napkin.
Eventually their steps led them toward a quiet forested trail on the edge of town—tall trees, soft leaf litter, the distant hum of evening insects. It felt peaceful.
Until it wasn't.
A figure stepped out from between the trees, blocking their path.
Dohnaseek, disguised as a plain human man in a dark coat—stood there, eyes cold and hostile as they locked onto Asia.
"So this is where you are, nun… with a stranger."
Asia froze, ice-cream cone trembling in her hands. Her voice came out small and scared.
"Please… don't do anything bad to her…"
Dohnaseek's lips curled into a cruel smirk. Black wings erupted from his back in a burst of dark feathers, tearing through the coat. The disguise melted away, revealing the fallen angel in full—violet eyes glowing with malice.
"Sorry, we care about you so much… but she's seen too much. She dies now."
Akari didn't flinch.
"Yeah yeah, bitch," she said calmly, stepping in front of Asia. "Like I'll allow it. You and your other three fallen angels only want her because of her Sacred Gear—Twilight Healing—which heals anybody to a certain extent."
Dohnaseek's eyes widened in genuine shock.
"How do you know this, bitch?"
Even Asia gasped, green eyes filling with hurt and betrayal as the truth sank in. Raynare (who was already gone), Kalawarner, Mittelt, and Dohnaseek had never cared. They had only wanted her power.
Akari glanced back at the trembling nun and spoke softly.
"Don't worry, Asia. I'll protect you."
Dohnaseek laughed—cold and mocking.
"Protect? Bitch, you can't even protect yourself from this attack I'll throw at you."
He raised his hand. A spear of brilliant light coalesced in his palm, humming with lethal holy energy.
But Akari was faster.
Her right arm snapped up.
Crimson gauntlet materialized with a resonant clang—Boosted Gear locking into place.
Boost.
Boost.
Boost.
Boost.
Boost.
Five boosts stacked instantly. Power surged through her body like liquid fire—speed, strength, reflexes all multiplied fivefold. The air around her seemed to warp.
Dohnaseek's eyes bulged. "Is that… a Longinus-tier Sacred Gear?!"
Akari smirked.
"Ever wondered what happened to Raynare, your boss? Well… I killed her and disposed of her remains to who knows where."
Dohnaseek's face twisted into pure rage.
"Enough! I'm gonna kill you for what you did to our boss!"
The fight exploded.
Akari moved like a red blur. Dohnaseek hurled the light spear with all his strength, but she simply sidestepped at five-times speed, the projectile missing by inches and slamming into a tree behind her, exploding in a shower of holy light and splinters.
Before the fallen angel could summon another, she was on him—fist cracking across his jaw with boosted force that shattered bone and sent him spinning sideways.
Dohnaseek tried to fly upward, wings flaring, but Akari leapt, grabbed one black wing mid-air, and slammed him back down into the dirt hard enough to crater the ground.
He coughed blood, summoning a second spear; she caught his wrist, twisted until the joint popped, then drove her knee into his ribs—once, twice—each impact landing with the weight of a freight train.
Dohnaseek screamed as more bones cracked, his wings flapping uselessly while Akari rained precise, devastating strikes: elbows to the temple, palms to the throat, boots stomping down on his knees until they buckled inward.
The fallen angel's regeneration tried desperately to keep up, but five-times-boosted power overwhelmed it completely, reopening every wound faster than it could close.
By the end of the brutal exchange, Dohnaseek lay in a broken heap on the forest floor—both wings snapped, ribs caved in, face a bloody mess, barely conscious and wheezing through shattered teeth.
Akari stood over him, breathing steady, Boosted Gear still glowing crimson on her arm.
She raised her free hand.
"Fiendfyre."
The incantation left her lips with perfect will and intent. Black, sentient flames erupted from her palm—roaring, hungry, alive. The fire did not backfire; her control was absolute.
The cursed flames engulfed Dohnaseek while he was still alive, wrapping around his broken body like living serpents. His screams tore through the forest—high, agonized, desperate, as the Fiendfyre consumed flesh, feathers, bone, and holy power alike, growing hotter and brighter with every second.
He thrashed wildly for nearly a minute, voice cracking into raw animal howls, before the flames finally reduced him to nothing but drifting black ash that scattered on the evening breeze. Not even a single feather remained.
Silence fell.
Asia stared at the spot where Dohnaseek had been, face pale, eyes wide with terror. She took a shaky step backward, hands trembling.
Akari dismissed the Boosted Gear and turned to her, voice gentle.
"Everything's okay now, Asia. He's gone. You're safe."
She stepped closer slowly, offering her hand.
"Come on. Let me take you to my home. You can stay there tonight—no one else will bother you."
Asia hesitated for only a second longer, then placed her small hand in Akari's.
Together they left the forest, the scent of burnt ozone and ash fading behind them.