Far beneath the earth...buried in shadows and secrets.. a forgotten Hydra facility stirred with activity. Concrete walls lined with rusted pipes and archaic sigils pulsed with unnatural energy, humming low like a machine struggling to remember its purpose.
Torchlight flickered over ancient glyphs etched in blood.
The floor was painted with madness.
A great summoning circle, scrawled with crimson ichor and lined with bones of the fallen, glowed faintly under the old fluorescent lights. The blood wasn't ordinary...it came from captured Inhumans, rare beings whose biology sang with energy different from mutants, yet equally potent for ritual work. They were carved apart like livestock, bled dry to power the rite.
Dozens of robed cultists knelt in reverence, hands pressed to the ground, faces obscured by serpent-emblazoned hoods.
At the circle's edge stood the Main Inspector, an old man whose devotion to Hydra was carved into his flesh by ritual scars. He stepped forward, cradling a small black box inlaid with the Hydra insignia...a skull with twisting tentacles.
With trembling reverence, he opened it.
Inside was a sliver of glowing blue crystal...a fragment of the Cosmic Cube, once wielded by the infamous Red Skull. A whisper of the power that could bend reality.
"This..." the Inspector intoned, raising the stone toward the circle, "is our key. A gift from our true savior, Lord Red skull. With it, we shall summon the god of Hydra. A being older than the stars. The flame of darkness who shall bring order to this rotting world."
He placed the fragment into the center of the circle.
The room held its breath.
Then he began the chant, reading from a tome stained with time and secrets long buried:
"WE WILL SAVE ORDER BY DELIVERING A BEING OF GREAT POWER FROM THE DARKNESS."
"HAIL SATAN!"
"HAIL SATAN!!"
The cultists echoed in unison, the words twisted with faith and madness.
The room began to glow first green, then violently pulsing until the light suddenly died.
Silence.
One of the cultists whispered, "Did… did we fail, my lord?"
Then, blue light burst forth, violent and unnatural. Black flames licked across the ritual circle, and the ground quaked as if something ancient awoke. A scream of reality torn open echoed through the air.
From the heart of the circle, a figure emerged amidst the swirling smoke and heat.
When the dust settled, the cult stared.
He stood there tall, lean, sharp-eyed, with a black suit tailored like it was spun from starlight and a casual white shirt beneath. His black hair was tousled just enough to look effortless, and his expression was halfway between irritation and deadpan surprise.
"Hello." the man said with a casual wave, one hand in his pocket.
Gasps echoed.
"W-Wow…" one of the female cultists whispered. "Satan is more handsome than I imagined…"
"Really?!" another murmured, cheeks flushed. "Satan would want me to have these lustful feelings, right?"
"Idiots!" the Inspector snapped, furious. "Satan does NOT look like that! He should be fire and horns and divine horror, not... some K-Drama actor!"
The stranger blinked. "Wait. Did you seriously just summon me into a cult?"
He glanced down at the ritual circle and back up at the robed crowd.
"Okay, this is going in the Top Ten Worst First Summonings. Da Vinci's gonna laugh herself into a coma."
"Die, false idol!" the Inspector bellowed, and the cultists charged.
But the moment their feet touched the circle's edge, a shimmering barrier erupted around the young man. Their weapons bounced off like toys.
Ritsuka Fujimaru sighed.
"You guys don't seem like the good kind of weird cult. Let's see what I'm working with."
[A/N: Wisdom of Humanity (Ex):
One can access the knowledge of humanity of the world. But the knowledge must be generated by humans.
Please check Ritsuka profile]
His deep blue sea eyes began to glow with a soft golden hue ancient and wise.
Wisdom of Humanity (Ex).
Like tuning into the collective subconscious of the world, information flooded his mind in organized layers science, history, metaphysics, myths. All of it filtered through human understanding.
"Hydra, huh?" he muttered, hand to his chin. "Extremist, authoritarian, borderline worshippers of Destruction and so on. Definitely not part of good civilization ."
The barrier shimmered again under impact. Ritsuka didn't flinch.
"So… this world isn't mine. I've been summoned into a parallel world through a corrupted ritual. And the group that did it? A cancer of humanity."
The shadows beneath him began to churn.
A blue, cold fire mixed with darkness seeped from his body.
His smile disappeared.
"I'll protect humanity. That's always been my role." His tone turned sharp, iron-like. "And you…"
His gaze cut through the cult like a blade.
"You don't qualify as human."
The room went silent for a second.
Then flames of hell erupted from beneath him, the darkness roaring like a divine punishment. Blue and black fire surged outward like a tide, sweeping over the room. The cult screamed but there was no escape.
Not from him.
Not from a Grand Servant whose very essence was carved by the cries of dying Lostbelts.
Not from the final Master of Chaldea.
When the fire faded, all that remained was ash and silence.
In the control room, Hydra guards watched the entire scene through the CCTV feed.
One of them scrambled for the terminal.
"Red alert! We've got a hostile anomaly in Sector X-7! Subject is… is…" He hesitated, watching the last flames vanish as the lone figure stood unharmed.
"…Subject is not of this world."
Ritsuka Fujimaru stood quietly amidst the charred ruins. The metallic scent of scorched weaponry and burnt flesh lingered in the air. Beneath his feet, the ritual circle was now a cracked scorched sigil. A single remnant glowed faintly the fragment of the Cosmic Cube.
He bent down, the blue light reflecting in his eyes.
"…So this thing came from space. Artificial? Possibly older than any human artifact I've seen."
He activated his skill
[Wisdom of Humanity (EX)]
A wave of thoughts rushed through him, filtered through the collective knowledge of mankind. But when it touched the Cube… almost nothing. Fragmented whispers. A product of the Beyonders. A reality-warping object shaped by will.
"Damn… not even the collective unconscious has a grip on this thing," he muttered. "Either it's too alien… or too dangerous. Hope it doesn't turn into world ending threat"
He sighed and gave a crooked, knowing grin.
"Whom am I kidding? Peace just isn't written in my stars, different world or not."
As if echoing his words, the cube fragment sank into his shadow, merging with the void.
Suddenly, red alarms flared across the darkened hallways.
Dozens of Hydra troopers burst from the stairwells, equipped with stark-tech knockoffs, sonic rifles, and mutant-capture weapons none designed for him.
"ON YOUR KNEES!" one barked.
Ritsuka turned lazily, raising a single hand. A soft blue spark ignited from his fingers…
FOOOOOM.
The corridor erupted into searing blue flame not just burning, but purifying. The screams were brief, the silence absolute.
---
[Cut to: Hydra Command Room – Ellie Marston's POV]
Smoke clung to the vents, monitors flickered with static. The tech crew were panicking as their feeds were reduced to grainy thermal readings and shrieking audio.
Ellie slammed her gloved fist against the terminal. "Greezor, you idiot old man… you brought us Satan for real this time."
{We need reinforcements!!} the comm crackled, distant screams behind it.
She grabbed the radio, barking, "I need VISUALS ON THE TARGET! Who is attacking us!?"
{He—he looks like a damn model—AGHH, MY LEG!!}
Another feed died.
Her blood ran cold. "WHO. IS. HE?!"
A calm male voice cut through the channel like silk over steel:
{No need to shout, Ms. Ellie…}
She froze. "Who are you?"
{Who? Who is but the form following the function of what, and what I am is… a man in a suit.}
His chuckle oozed quiet amusement.
{I'm the one who dismantled your base. I'm the one who watched you all burn… and I'm the one who'll end this with fire.}
Her fingers clenched tight on the mic. "You realize who you're dealing with? You've just declared war on HYDRA. If you belong to any rival org... hand, brotherhood, hell even Doom, you'll all be erased. Who commands you?!"
{Oh, you don't get it. You're too weak to even say my organization's name.}
He paused, then added with a smirk:
{But I do love that outfit. Really brings out your chest.}
Her eyes went wide. ..she turned slowly toward the bulletproof office window behind her.
There he was standing just outside on the glass ledge smiling at her through the reinforced glass. Black suit. White undershirt. Messy black hair.
"Wait… Japanese!?"
My panic came out louder than I wanted.
"If you move, I will explode myself with you!" I hissed, thumbing the emergency detonator on my belt, praying he'd hesitate.
But the bastard didn't even blink.
He smiled gently and punched through the bulletproof window with one hand.
The entire wall cracked like sugar glass. With a single motion, he hopped into my office like it was a Sunday morning stroll.
"With no guards, no backup, no plan… how exactly were you planning to 'explode yourself'?" he asked, almost genuinely curious. "The way I see it, you don't have the courage to die or the guts to do."
"You think you're clever?" I spat. "You'll kill me then? Go on. Do it."
He gave me a calm, disappointed look.
"You're not worth the effort, but Don't worry, your chapter is over anyway." he said.
I gritted my teeth. "You're a spy from The Hand, aren't you!? You're not SATAN or any kind of demon.. you're a Japanese operative sent to steal the Cosmic Cube fragment! But Hydra won't forgive this. Your little ninja clan's days are numbered!"
"…And here I thought you were smart." He sighed, rubbing his temple as if I'd given him a headache. "Seriously… The Hand? Do I look like someone who'd take orders from a bunch of dumb creeps of Evil organisation?"
I opened my mouth, but
"…Don't worry," he continued casually, stuffing one hand in his pocket. " I came to talk....so if you'd be a dear, go ahead and patch me through to your actual boss."
Before I could curse him out, the emergency radio crackled to life.
{...So, you are the one who did this?}
My eyes widened. "Lord Zola!"
Ritsuka tilted his head. "Zola? Weird name. Sounds like a half-price wine brand."
The voice on the comm deepened, now unmistakably electronic, and angry.
{Who are you? I've searched all Japanese government and underworld databases. You don't exist. Not even on international blacklists. Are you The Hand's secret weapon? Return the Cosmic Cube FRAGMENT.....NOW.}
Ritsuka chuckled. "Nope. Took it as payment for services rendered. Even Servants need to feed their families, you know. Gotta keep my wives and kids happy." He grinned.
{Enough of this foolishness! IDENTIFY YOURSELF!}
Ritsuka scratched his head, fake-thinking.
"…Fine, fine. I'm Merlin."
I blinked. "Merlin…?"
"Yeah," he added brightly, "like the wizard. Let's go with that."
Even I could tell he was lying. Zola definitely could.
{Mr. 'Merlin'… I see. Well then, you've proven your value. How about you join Hydra instead of wasting time with The Hand? We have greater goals. We aim to save the world.}
Ritsuka's smile didn't fade. But now it sharpened.
"Yeah, save the world... by controlling it? Enslaving those who disagree? ?"
{Hydra is stronger than The Hand! Your loyalty would be rewarded.}
Ritsuka raised a single hand and traced a faint magic circle in the air the spell shimmered, displaying scenes of totalitarian rule, fear-based propaganda, and controlled mutant suppression.
"…Let me make this clear," he said, voice calm but iron-steady. "I'm going to protect the freedom people once fought and bled for the freedom you took away. I'll tear down every corrupt regime, every 'leader' who trades liberty for fear, every snake who poisons democracy in the dark."
He smirked, putting a hand back in his pocket.
"I know that's a long-winded soup of words… so I'll simplify. My very bad honor to meet you. You can call me… the Last Master."
{We have defeated Captain America, you are nothing!} Zola snapped
"Ofcourse, I don't know this Captain, but I can say that You didn't defeat him."
{We have power!} Zola snapped.
Ritsuka's eyes gleamed. He grinned.
"And I have friends."
{Then let's see who wins, LAST MASTER.}
Ritsuka whistled a soft tune. Then, in front of my disbelieving eyes, he jumped out the broken window... not fell, but soared into the sky like a missile shot from the earth.
The pressure of his exit cracked my walls. Paper and broken glass flew in all directions.
He vanished like a phantom, taking our future with him.
---
[Ritsuka Fujimaru – POV]
The wind howled past my ears as I soared above the treeline, still rising, leaving behind the shattered window and the last glares of the Hydra base security teams below.
From this height, the facility looked almost peaceful nestled like a tick into the side of a mountain, with its sharp lines, hidden turrets, and steel-plated bunkers. Hydra always did love symmetry.
But all I could see was rot.
"Happy advance New Year, Hydra," I muttered, raising my right hand toward the base, the wind brushing my coat like a cape. "Take my gift."
A glowing magic circle spun into existence over my palm silver-lined and laced with magecraft scripts.
The air snapped space itself pulled tight.
From the circle, a pillar of pure light surged downward, white-hot and divine, as though heaven itself had opened judgment upon the land.
It was not fire. It was purification.
The beam lanced from the sky like a sword swung by the gods. It struck the main reactor housing in the Hydra base and everything changed in a blink.
There was no explosion.
There was only erasure.
The base didn't burn or collapse. It disintegrated. Like sand being erased from a chalkboard, every trace of the structures steel, concrete, plasma defenses, anti-aircraft guns, even the encrypted surveillance satellites linked to it were consumed in silence.
No screams.
No debris.
Just a growing hole of white emptiness, and in its place, left behind… was hope.
I exhaled slowly.
"...Guess I still remember how to erase a things."
My body drifted downward gently, magic slowing my fall. I touched down on the rim of the newly created field, still warm, still glowing with aftershock mana.
"I suppose my next plan will be getting some kind of citizenship… or at least a decent fake identity," I mumbled, dusting off my coat, then frowned. "Then again, having paperwork means leaving tracks… maybe—"
I stood up.
"…I better find a car, so I can get the hell out of here," I said, whistling lightly.
---
[Ritsuka Fujimaru – POV]
I vanished from the edge of the ruined Hydra base long before the drones circled back. I didn't want to deal with Hydra's retrieval teams or any police agents. Best to let them fight over the ashes.
A few hours later...
I found a Ford Taurus in decent shape, tucked away behind an abandoned motel not too far from the nearest town. Dusty, gray, and tragically forgettable.
Perfect.
A quick rune drawn under the door lock with a trace of magical energy courtesy of what Da Vinci once called "civilian-level magecraft, good for lazy errands and very illegal things." The door popped open with a click. I slid in, hotwired it in less than a minute, and drove off without looking back.
The wheels hit pavement like a heartbeat.
The miles blurred by. Forests. Hills. Town signs.
Still... my thoughts wandered.
"Where should I go now?" I murmured, resting my elbow out the window as I drove through empty roads and forgotten towns. The sky was turning orange another sunset, another place.
The question hung there.
Where do I go… when I don't belong anywhere anymore?
I hummed at that. A good question. Where would I go?
No Chaldea. No more Rayshifts. No Da Vinci to lecture me. No Fou to crawl up on my shoulders. No Mash to—
I winced, jaw tightening.
"…I miss Mash," I said aloud, the silence of the car swallowing the words. "She would've had good suggestions. Practical ones. Optimistic. Something about alignment charts and tourist pamphlets."
My hand gripped the steering wheel tighter.
"Final answer… Orlando," I muttered, flicking on the turn signal. A highway sign blurred past.
I-95 SOUTH → FLORIDA
I adjusted the rearview mirror.
"…Orlando, here we go."
The mirror reflected my eyes...older than they had any right to be. Tired. Not just from the road. From everything. The loss. The guilt. The weight of thousands of decisions no one should have to make.
But underneath it all, that tiny flame still flickered.
The flame of Chaldea's last Master.
---
Note: So how is the chapter? I'm going to make the story more realistic and ofcourse Ritsuka will meet Tony, and Fury soon (I can't wait to write Fury POV). But I want to make more Development on the relationship between them, more naturally. And ofcourse Hydra will have major role this time and I will definitely add more importance to hydra.
And ofcourse The servants who Ritsuka will summon are totally different then original script. Hope you look forward to it.
And Yes, Ritsuka doesn't have any knowledge of Marvel.
He thinks he got Isekai to another world.