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Fate: Zero To Hero

The_Ninja_king9138
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Synopsis
My name is Ritsuka Fujimaru, the last Master of Humanity. I’ve walked through seven Singularities and seven Lostbelts. I’ve seen worlds burn, gods fall, and countless lives fade away — yet I kept moving forward. Regret? Of course. But I carried it like everything else — quietly, stubbornly. I thought my story was over. I had my lover. My friends. My purpose. So… why the hell did I regress?! God, why me?! (anime tears) Okay, calm down, Ritsuka. New timeline. New rules. New chaos. The butterfly effect is real, and this world isn’t the one I remember. Guess this is my second chance — to change fate itself, or maybe just mess it up in style. One thing’s certain… this is going to be one wild ride. --- Main Character: Ritsuka Fujimaru (regressed) Ship: Ritsuka × Harem
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Chapter 1 - Regression

"Truly, I went to hell."

That was the first thought that passed through his mind when he woke up.

A young man with an average build, short black hair, and calm blue eyes lay in bed. He wore a simple black shirt, his body half-buried under a heavy blanket. When he tried to move, it was heavier than expected.

[Insert Image of Ritsuka Fujimaru]

His age was… uncertain. To the world, he looked seventeen.

To himself—and the organization he once worked for—he was older. Far older.

Time moved differently when you were trapped in a pocket dimension trying to save humanity.

He was closer to twenty-two in truth, yet somehow, still banned from alcohol.

"Thank you, Moriarty," he muttered sarcastically.

When his vision cleared, he found himself surrounded by a scene most men could only dream of. For him, it was real—and fragile.

Clinging to his right arm was a woman of cold beauty. Long, flowing white hair shimmered faintly under the morning light. Her piercing blue eyes were closed, her lips soft with sleep. The regal armor-like dress she wore—a mix of black and blue—signified her authority as the Queen of Faerie Britain. Even asleep, Morgan exuded power.

[Insert Image of Morgan]

To his left was a goddess of divine allure, her expression mischievous even in slumber. Long, starry-white hair cascaded down her shoulders, each strand sparkling faintly like the night sky. Her skin glowed softly, limbs veiled in a cosmic shimmer. Even asleep, she looked like a dream painted over the void. Kama.

[Insert Image of Kama]

On his chest were two more girls.

One was a gentle girl with pale pink hair and lavender eyes, wearing rectangular glasses that somehow stayed in place even as she slept. A grey hoodie draped loosely over her shoulders, the red tie beneath slightly crooked. Mash Kyrielight.

[Insert Image of Mash]

Next to her, resting lightly against his other shoulder, was a woman with mint-green hair tied into elegant side-tails. Small white horns adorned with gold ornaments curved from her head, and a red fan lay against her hand, still faintly warm. Kiyohime.

[Insert Image of Kiyohime]

Ritsuka looked at them—his wives, his bonds—and chuckled softly.

"...Really, I went to hell and came back to this," he whispered, his tone fond.

He moved carefully, trying not to wake them, but escaping that bed was clearly harder than any singularity he'd ever cleared.

Ritsuka tried to move, but it was like trying to escape a high-level Binding spell made of soft limbs and affection.

If teleportation was an option for normal magi, he would've used it by now.

But alas, he wasn't that kind of mage.

He sighed quietly, shifting his arm with the precision of a man defusing a bomb. Yet despite his best efforts, the first one stirred.

Mash's eyelashes fluttered open. Her lavender eyes met his, sleepy and warm.

"Senpai… morning," she murmured with a soft yawn.

Ritsuka chuckled under his breath. Even after everything, she still called him that.

It wasn't out of ignorance—it was habit. The kind that even time couldn't erase.

Old habits die hard, he mused.

Or, as a certain nun once told him:

"Maybe, she's just got a kink for respect."

He snorted quietly at the memory, careful not to wake the others.

Mash's yawn was enough to trigger the chain reaction he feared.

Because when one of them woke up—

the rest followed like falling dominoes.

"Mnnh… already morning?" Kama's voice was low and teasing, her eyes slowly opening as she stretched against him like a lazy cat. The faint sparkle of her cosmic hair brushed across his chest, and she gave him a sly look. "You're getting up early again, Master~? You could've stayed a little longer."

"Because if he stays longer," another voice cut in smoothly, "we'll never leave this bed."

Morgan's tone was cool, but the way she leaned closer betrayed the softness hidden beneath her queenly facade. She pressed a light kiss on his cheek—her version of a 'good morning.'

"Good morning, my King."

Her lips lingered a second longer than necessary.

And as if on cue, Mash leaned up and placed her own shy kiss on the opposite cheek. "Morning, Senpai," she said again, a little more awake now—her face tinted pink.

Kiyohime was last, blinking her golden eyes open, her horns faintly glowing with morning light. She sat up, a sleepy smile forming as she looked at him.

"My beloved…" she whispered softly, before leaning down and kissing his forehead. "To wake up next to you… truly paradise."

Ritsuka froze—his brain processing four different kisses and two overlapping divine energies at once.

He sighed in mock defeat, his smile gentle.

"…If this is heaven, then hell's gonna be jealous," he muttered, earning a quiet giggle from Mash and an amused smirk from Kama.

Morgan gave him that queenly look again, the one that said "You're lucky I love you".

And honestly, he was.

A few minutes later, Ritsuka had freshened up.

He adjusted his black shirt, exhaled, and made his way down the quiet hall toward the command room. The door slid open with a soft hiss.

Inside, the Chaldea control room was alive with activity. Screens flickered with data, technicians moved between stations, and the hum of machinery blended with the faint echo of voices.

A familiar sense of home. Organized chaos.

At the center of it all stood a young man around Ritsuka's age—a slim figure with silver hair and light brown eyes, his long coat brushing lightly against his boots. Rings and silver piercings glinted under the fluorescent light.

[Insert image of Kadoc Zemlupus]

Kadoc turned, noticing him.

"Morning, Fujimaru."

Ritsuka smiled faintly. "Morning, Kadoc."

Kadoc raised a brow. "You're up early. That's suspicious."

Before Ritsuka could respond, another voice cut in—bright and teasing, the kind that always carried a mix of cheer and mischief.

"Suspicious? No, no! It's a miracle~!"

A small girl with soft brown hair twirled into view, her childlike frame belying the genius within. Despite her petite height and innocent smile, the intelligence shining in her eyes was unmistakable.

[Insert image of Mini Da Vinci]

"Da Vinci-chan," Ritsuka greeted, smirking. "Still working miracles this early?"

"Someone has to," she replied, hands on her hips. "Some of us actually need sleep, you know."

Before their banter could continue, a booming yet oddly fatherly voice echoed from the other side of the room.

"Ritsuka, my boy! You're early today!"

The man had blonde hair, a grand mustache, and a posture that tried—and failed—to radiate authority more than concern.

[Insert image of Goredolf Musik]

Goredolf approached with his usual blend of pride and panic. "You didn't skip breakfast, did you? You know it's the most important meal of the day!"

"I didn't, Director," Ritsuka replied smoothly, though his smirk gave away that he totally had.

Before Goredolf could lecture him, the sound of boots clicking across the floor interrupted.

A woman with long purple twin-tails, a sharp blazer, and stylish glasses approached with perfect posture. Her green tie was neatly knotted, her expression as sharp as her intellect.

[Insert image of Sion Eltnam Sokaris]

Sion adjusted her glasses, looking him dead in the eyes. "You didn't, right? You haven't been skipping meals again…" she leaned slightly closer, her tone sly, "…right, future husband?"

Ritsuka blinked once. Twice. "You're still calling me that, huh?"

Sion's lips curved. "Of course. It's factual data. You did propose during Lostbelt 4, remember?"

"Technically," Ritsuka said, "I was dying at the time."

"Semantics," Sion replied, unfazed.

The others just sighed. This was normal for Chaldea.

Ritsuka looked at the group as he spoke. "So, anything new".

Sion fixed the computer of Chaldea as she spoke. "No, not after you cleared Ordial Calls".

Kadoc leaned against the console, crossing his arms. "Still can't believe you managed to handle that on your own. You're making the rest of us look bad, Fujimaru."

Da Vinci chuckled, swinging her legs from the chair she was sitting on. "Well, what can we say? Our boy's the same unstoppable workaholic he's always been~."

Ritsuka let out a sigh, rubbing his neck. "Workaholic? Da Vinci, you make it sound like I don't sleep."

Sion smirked slightly, adjusting her glasses. "You don't, sometimes. I've seen your logs. Three hours of rest after defeating a conceptual anomaly is not healthy, future husband."

Goredolf puffed up his chest, trying to sound authoritative but clearly concerned. "Indeed! As Director, I must insist that you take proper care of yourself! If you collapse again, do you know how many panic alarms go off?!"

Kadoc snorted, muttering under his breath, "Sixteen. I counted."

Da Vinci giggled. "See? Even Kadoc knows. That's when you know it's bad."

Ritsuka chuckled at the group's chaotic energy. "You guys really don't change, huh?"

Sion glanced at him, her tone softening. "Neither do you. You're still the same idiot who carries the world on his back."

He smiled faintly, looking around at everyone — his comrades, his friends, his family. "Guess I wouldn't be me otherwise."

Da Vinci's expression turned mischievous. "Oh, but speaking of 'new,' there was a recent report from the observation room. Something about a residual singularity trace…"

Ritsuka raised an eyebrow. "Residual? Where?"

Da Vinci tapped a few keys, and a holographic map appeared. "Somewhere familiar — Fuyuki. Again."

Kadoc groaned. "You've got to be kidding me…"

Sion narrowed her eyes. "Looks like peace didn't last long. Ritsuka, ready to go save the world again?"

He cracked a small grin. "Was I ever not?"

Before Ritsuka could even answer Sion, the door to the command room slid open with a hiss.

"Save the world again? Tch, typical you."

The voice was sharp, dripping with sarcasm and pride. Stepping into the room was a woman with short white hair that burned with faint golden tips, her fiery yellow eyes locked directly on Ritsuka. She wore a black and red outfit adorned with jagged armor plates and a tattered cloak — her very presence felt like a storm ready to ignite.

[Insert image of Jeanne d'Arc (Alter)]

Jalter crossed her arms, smirking. "You can't even take a break without another crisis showing up, huh? What's next, an evil version of you again?"

Ritsuka smirked back. "If there is, you'd probably set them on fire."

"Damn right I would."

Before she could tease him more, another woman glided in — her every step graceful, yet laced with danger.

Her dark hair framed a face that could make angels blush, and her golden eyes gleamed with amusement. She wore a white and violet kimono-like dress that was far too revealing for anyone else to pull off — but on her, it was art.

[Insert image of Kiara Sessyoin]

Kiara smiled softly, hands clasped behind her back. "Ara~ my, my, another singularity? How cruel of the world to call for our Ritsuka so soon. He hasn't even recovered from last night's… exertions."

Kadoc choked. "K-Kiara, we don't need to know that—!"

She giggled, the sound musical and dangerous. "Oh, but it's so fun to remind him that he's loved."

Before Ritsuka could protest, the next arrival came with an almost divine warmth.

"Exertions or not, we can't ignore a world in need," came a calm, regal voice.

The woman who entered was radiant — long, dark-brown hair tied up elegantly, her eyes golden and serene. Her clothing resembled ceremonial robes crossed with a warrior's armor, and her aura exuded majesty and confidence.

[Insert image of Himiko]

Himiko smiled as she approached Ritsuka. "The Sun shines again, and with it, duty calls."

Ritsuka gave a small smile. "You always sound so poetic in the morning."

"Habit of a queen."

And as if to balance that noble aura, a familiar burst of energy appeared next — literally, burst.

A pair of twin takes peeked through messy hair the color of seafoam, and bright eyes filled with mischievous light darted across the room. The girl's outfit was a curious mix between tribal and regal — an armored skirt, flowing sleeves, and golden ornaments.

[Insert image of Iyo]

Iyo threw her hands up, grinning. "Morning! Morning! So we're fighting again?! Ooooh, I'm so in! Can I punch the boss this time?"

Da Vinci sweatdropped. "You're way too excited about this."

Iyo puffed her cheeks. "C'mon! It's fun when we're all together! Plus, Master looks super hot when he's serious!"

Kiara chuckled. "You're not wrong, dear."

Sion sighed, pushing her glasses up again. "So much for a quiet morning briefing…"

Ritsuka finally raised his hand to calm the chaos. "Alright, alright — we'll discuss the mission once everyone's here. Then we'll decide our move."

As the chatter quieted, Jalter leaned in close, resting a hand on his shoulder. "Heh, just like old times, huh?"

Ritsuka smiled faintly. "Yeah… just like old times."

The screen in front of them flickered to life, showing the distorted, flame-tinted image of Fuyuki.

Da Vinci's expression turned serious. "I don't know what's waiting there… but it feels familiar. Almost like the start of everything."

Kiara's smile faded. "Then it seems our story begins again."

Ritsuka nodded slowly. "Then let's make sure it ends on our terms this time."

Then walked in Morgan, Mash, Kiyohime and Kama, as they had heard it.

Mash moved too the control room, as she saw Fuyuki. "Um, Da Vinci Chan, why does this Singularity Feel different".

Ritsuka looked at her as he spoke. "Different, like the summer Singularity".

Da Vinci blinked as she looked over the data, her small hands tapping the holographic keyboard. "Hmm, not quite. The readings are off the charts in terms of temporal stability, but the leyline pattern isn't just burning — it's looping. Like someone replayed Fuyuki."

"Replayed?" Mash tilted her head. "You mean… like it's repeating itself?"

"Exactly," Da Vinci replied, her voice serious now. "But the twist is — it's not our Fuyuki. This one's overwritten. The flow of history itself doesn't recognize this version. It's as if someone forcibly rewound time, but not to the past of this world — to another one's start point."

Kama rested her chin on Ritsuka's shoulder, her star-dusted hair brushing against him. "Ara~ sounds like déjà vu with extra spice. You sure you didn't secretly cause this, darling?"

Ritsuka gave a dry laugh. "If I did, I'd at least make it a vacation spot."

Kiyohime, fanning herself, smiled dreamily. "If Master wishes to burn through time, I'll gladly burn with him~"

Morgan crossed her arms, her piercing blue eyes narrowing at the display. "Enough of your nonsense. If this anomaly truly mirrors the original Fuyuki… then something — or someone — is calling him back to where it all began."

That made everyone freeze for a second.

The word him hung heavy in the air.

Kadoc turned. "You mean—?"

Morgan's gaze flickered briefly toward Ritsuka. "The one who walked this path before. The first Fujimaru."

Silence.

Ritsuka's expression softened — his usual calm replaced with quiet understanding. "So, it's really starting again, huh?"

Himiko stepped closer, her golden eyes thoughtful. "Then fate itself is challenging you once more, Ritsuka. The sun rises at the same place it first shone… and dares you to burn brighter."

Jalter scoffed but smiled faintly. "Then we burn it twice as hard this time."

Sion adjusted her glasses, tapping the console. "Alright, team. I'll coordinate from here with Da Vinci. We'll prepare the Rayshift frame and stabilize the coordinates."

Da Vinci nodded. "We'll need a first recon team. Small and fast — enough to test the singularity's boundary."

Ritsuka turned, eyes sharp again. "Then I'll go. Mash, Jalter, Himiko, Kiara — with me."

Mash saluted. "Understood, Senpai!"

Kiara smiled, whispering playfully, "Oh my~ I suppose I'll make sure you don't overwork yourself again."

Himiko folded her arms, grinning proudly. "Let's go remind this world why it should never repeat our past."

Jalter cracked her knuckles. "Hell yeah. Let's burn Fuyuki down again — for our future this time."

Morgan's voice followed as the Rayshift chamber prepared. "Be careful, Ritsuka. Don't let this new loop consume you."

Ritsuka met her gaze and smiled faintly. "Don't worry, Morgan. I've already escaped one loop. I won't let another trap me again."

The light of the Rayshift enveloped them — and for the briefest moment, he felt that same chill from years ago.

The same smell of smoke.

The same warmth of embers.

And the same beginning.

Every monitor in Chaldea suddenly flickered—then went red.

[ERROR] [ERROR] [ERROR] [ERROR] [ERROR] [ERROR] [ERROR] [ERROR] [ERROR] [ERROR] [ERROR] [ERROR] [ERROR]

The alarms blared through every corridor, mechanical voices overlapping in chaos.

> "WARNING: Temporal distortion detected!"

"WARNING: Reality layer collapsing!"

"WARNING: Spatial coordinates unstable!"

Sion's hands flew across the keyboard, her normally calm face contorted with shock.

"This—this isn't normal! The system's not just overloading, it's rewriting itself!"

Kadoc shouted over the alarms, eyes wide. "What's happening? Are we under attack!?"

Da Vinci stared at the monitor, her expression grim. "Temporal anomaly… reality fracture… and—wait—spatial inversion!? No, no, this isn't possible! Something's pulling the timeline inside out!"

And then, the world… stopped.

The air froze. The hum of Chaldea's machinery became distant, fading into nothingness.

The light outside the facility — the calm, blue morning sky — suddenly ignited in a blinding flash.

"Ritsuka!" Mash shouted, but her voice vanished, swallowed by a roar that wasn't sound — it was time itself collapsing.

White light consumed everything.

GASP!

The sound of a sharp breath broke the silence.

A young boy bolted upright, his tiny frame trembling as he fell out of bed, hitting the wooden floor of his small, sunlit room. The smell of dust and paper filled his lungs.

Groaning, he pushed himself up, one hand on the wooden desk nearby. "Ow… my head…"

His vision swam, colors bleeding together — until his eyes caught the mirror across the room.

The reflection made his blood run cold.

Staring back wasn't the man who had led armies across history — not the savior of humanity, not the master of countless Servants — but a child.

Wide brown eyes. Round cheeks. Short, messy hair.

He looked… five years old.

"…What the—" he leaned closer, his voice cracking as realization dawned.

It was his face. His younger face.

His mind raced. He remembered the alarms, the light, the collapse.

The smell of smoke, the shouts, and then—nothing.

He swallowed, panic and disbelief mixing in his chest.

"…What the fuck?!"

The cry echoed through the small room, as the morning sun spilled through the window—

marking the first day of Ritsuka Fujimaru's second chance at life.

"He didn't ask for another chance. He didn't want to start over. But fate… fate never asked him what he wanted."

To be continued

Hope people like this ch and give me power stones and enjoy

So yeah this is a full on rewrite of the Originally Fate: Zero To Hero