Far out in the lawless reaches of the New World, where compasses spun like drunkards and the sea itself seemed to breathe with malice, there lay an island that most sailors never bothered to name. From the surface, it was unremarkable—almost disappointingly so.
A wide crescent of white sand ringed the shoreline, broken only by jagged black stone where ancient volcanic teeth bit into the sea. Inland, dense jungles sprawled beneath a warm, golden sun.
Towering trees with broad emerald canopies swayed lazily in the ocean wind, their roots tangled with vines thick as ship's rigging. Strange birds cried from the heights, their calls sharp but not hostile. Massive beasts roamed freely—horned reptiles basking near freshwater pools, furred predators slinking through tall grass, insects the size of shields humming like distant engines.
To the passing eye, it was nothing more than a wildlife-rich island—dangerous, yes, but hardly unusual in the New World. No flags flew here. No ports scarred the coast. No settlements dared take root.
Even pirates, guided by greed and instinct alike, felt no pull toward it. The island gave nothing—no gold veins, no ancient ruins, no rumors worth chasing. Log Poses rarely locked onto it, and Eternal Poses were conspicuously absent, as if the world itself had agreed to forget this place.
And that was precisely the point. Beneath the thick soil and living stone—far beyond roots, beyond magma-scarred bedrock, beyond pressure that would crush ordinary men—lay the island's true purpose.
More than a thousand meters underground, hidden within a vast artificial cavern, rested a facility that officially did not exist. A World Government black site.
No World Government insignia marked its walls. No public records acknowledged its construction. Knowledge of the facility was restricted to the highest echelons of the World Government—figures who ruled from behind curtains, whose names were spoken only in sealed chambers.
When MADS was dismantled decades ago—its members scattered, imprisoned, or absorbed—most believed its legacy ended there. Vegapunk was transferred to Punk Hazard. A few select minds followed. The rest of MADS' work was supposedly destroyed.
That, too, was a lie. Here, entombed beneath an innocent island, were the projects deemed too dangerous, too ambitious, even for open government use.
Endless white corridors stretched like veins through reinforced stone, illuminated by cold artificial light. Massive vault doors sealed away laboratories frozen in time—rows of containment pods, half-assembled weapons, gene banks, and blueprints that redefined the boundary between science and heresy. Names had been scrubbed clean, replaced with numerical designations, but the fingerprints of MADS were unmistakable.
Failed immortality experiments. Biological weapons never meant to see daylight. Artificial lifeforms abandoned not for lack of success but for fear of what these uncontrolled anomalies would mean.
Automated systems still hummed faithfully, maintained by machines long outliving their creators. Surveillance Den Den Mushi slept in dormant networks, ready to awaken at a single encoded command. Deep within, a central chamber housed the most sensitive archives—records the World Government could not destroy, yet dared not unleash. Above it all, the jungle thrived—birds nesting, beasts hunting, rain falling freely.
Deep beneath the island, sealed behind layers of reinforced alloy and pressure-lock doors, one of the vaulted laboratories remained awake.
Cold white light washed over the chamber, reflecting off polished steel walls etched with serial numbers and warning devices. Thick glass tanks lined the room like silent coffins, each filled with murky nutrient fluid that pulsed faintly with life. Thick cables snaked from the pods into the ceiling, carrying data, power, and the faint, stubborn proof that the experiment had not yet fully failed.
Beep… beep… beep…
Four monitors still emitted sound. Slow. Irregular. Weak—but alive. Vinsmoke Judge stood before them with his arms crossed behind his back, his white coat hanging heavy over his broad frame. From the outside, he looked composed—regal even—his sharp moustache perfectly groomed, his visor reflecting scrolling data streams with clinical detachment. But beneath that carefully constructed facade, unease gnawed at him like acid.
No… worse than unease. Fear.
The life signals on the screens flickered just above critical levels. Heart rates dipped, stabilized, then dipped again. Cellular cohesion percentages hovered at numbers that made even Judge's iron discipline tighten his jaw.
Four survivors. Out of dozens. And none of them stable. His fingers twitched once, betraying the tension he refused to acknowledge. He had stalled too long. Progress had slowed to a crawl, and in the eyes of the World Government, stagnation was the same as failure.
And failure meant disposal. Judge knew this better than anyone.
Unlike Vegapunk, he had no official title, no public value. Unlike Caesar, he had no chemical monopoly. And unlike the likes of Queen, he had no Yonko backing him anymore. Germa was fractured. His authority was broken. After escaping the Charlotte Family's grasp—humiliated, hunted, stripped of leverage—he had fallen straight into the hands of the World Government.
A colder prison. One without chains. In exchange for resources, protection, and continued research, Judge had made them a promise. He would replicate the monster. Charlotte Linlin's Iron Balloon.
A body so absurdly resilient it defied logic. Skin that shrugged off cannon fire. Bones that refused to break. A natural-born fortress wrapped in flesh. The test subjects had been volunteers—at least on paper.
Former Cipher Pol agents. Ghosts already erased from official records. Men and women who had been told their bodies would serve the World Government one final time. How much they truly understood was… debatable.
Judge had not asked. He never did. After all, this was not uncharted territory. He had walked this path before—standing alongside the scientists who had dissected divinity itself. He had helped awaken that same monstrous trait within Linlin's children.
Especially one. Charlotte Katakuri. Judge's lips pressed into a thin line as his gaze lingered on the largest pod. The subject inside floated unnaturally still, muscles unnaturally dense even in suspension. Data scrolled beside the tank—structural integrity readings climbing in fits and starts, as if the body itself were struggling to decide whether to evolve or collapse.
I've done this before, Judge told himself. He had seen it succeed. He had made it succeed. And yet— His eyes flicked back to the monitors. Four flickering heartbeats. If these subjects died… if the Iron Balloon could not be reproduced outside Linlin's bloodline…
Then Judge would no longer be a scientist in the World Government's eyes. He would be a liability. And the World Government had never hesitated to erase its mistakes. The beeping continued—slow, stubborn, defiant. Judge adjusted his visor and straightened his coat, forcing his breathing to steady.
"No," he muttered under his breath, voice low and sharp, echoing faintly through the lab. "You will not die. Not yet." Whether he was speaking to the subjects—or to himself—was impossible to tell.
Judge's nerves were stretched to their absolute limit. Then—finally—it happened. One of the four output monitors connected to the remaining pods flickered, its dormant screen flashing to life. Lines of code cascaded downward before stabilizing, and a new interface overlaid the vitals.
A single progress bar appeared: 1%.
Judge's breath caught in his throat. The number began to climb—but at a maddeningly slow pace, advancing in tiny, almost mocking increments. Every second dragged on like an eternity, the sterile hum of machinery amplifying the tension until it felt unbearable. Judge did not blink. His gaze never left the screen.
Minutes slipped by unnoticed. Then more. Nearly half an hour passed, each tick of the clock carving deeper into his composure. For the first time since they had arrived, the two CP0 agents standing behind him—silent as statues, pale masks devoid of emotion—shifted ever so slightly. A subtle change in posture. A faint tilt of the head.
It was the first sign of interest they had shown. Judge knew better than to mistake their role. They were not here merely to observe. If his experiment failed, they would not hesitate to act—not as scientists, but as executioners. Their presence pressed against his back like a blade poised at his spine, watching every movement, every breath.
The progress bar continued its agonizing crawl. 5%. 9%. 12%.
Judge's fingers tightened behind his back, knuckles whitening beneath his gloves. Then— It stopped. The bar flickered once… twice… and froze. 13%.
No alarms blared. No systems failed. The subject remained alive, its vitals weak but stable. Yet the number refused to rise any further, stubbornly locked in place as if the experiment itself had reached a natural limit. Silence swallowed the lab.
Finally, one of the Aegis agents spoke, his voice flat and stripped of all emotion. "Is that it?"
He already knew the answer. Thirteen percent meant only a fragment of the Iron Balloon had been inherited—barely enough to harden flesh beyond normal limits. A pitiful imitation of Charlotte Linlin's monstrous resilience. In the eyes of the World Government, it was dangerously close to failure. Judge clicked his tongue in irritation but replied without turning around.
"If I force the process any further," he said, voice low and edged with warning, "the probability of total cellular collapse skyrockets. The subject may die."
His eyes flicked briefly toward the pod, where the test subject twitched faintly, muscles spasming under the strain of an incomplete evolution.
"Are you sure you want to continue?" Judge added. "Don't blame me if he explodes like the others. Thirteen percent is already a significant success." He scoffed, then corrected himself with a sharp breath.
"Give me time. Not decades—a decade. And the resources I require. I will help you fully unlock the secrets of Big Mom's physique."
Judge's true intent lay beneath his words. This subject mattered. It was a below-par success, yes—but a living one. A trove of priceless data. Killing it now would erase the first genuine breakthrough he had achieved since falling into the World Government's grasp.
The CP0 agents remained silent, their masked faces unreadable. Judge straightened his posture, visor reflecting the frozen 13% on the screen.
The response came instantly—cold, sharp, and absolute. "Continue."
A single word. It struck Judge harder than any threat. There was no debate in the CP0 agent's tone, no curiosity, no restraint. They were not interested in mediocre results. They wanted limits. They wanted to know exactly how far the human body could be pushed before it shattered.
As for the dead agents? They were meaningless.
Hundreds more could be provided without hesitation. Names erased. Records burned. As long as Judge succeeded once, the World Government was certain the process could be replicated. Human lives were nothing more than numbers in a ledger. Judge opened his mouth to protest—but the words died before they formed.
He understood. Resistance here was pointless. With a tight jaw and burning eyes, he stepped up to the console. His fingers moved sharply across the interface, overriding safety locks and lifting suppression protocols he had personally installed to prevent catastrophic failure. The nutrient fluid inside the bio-tank churned violently.
The test subject—once stable—jerked as if struck by lightning. Muscles convulsed grotesquely, swelling and collapsing in uneven pulses. Veins blackened beneath the skin, bulging as the body fought to contain power it was never meant to hold. The progress bar twitched.
13%…13.4…13.7— The subject screamed. Even through the thick glass and fluid, the sound distorted into something animal, something broken. Before the display could even register 14%, the body ruptured.
BOOM.
Flesh tore apart from the inside. The bio-tank exploded outward in a violent bloom of red, nutrient fluid turning instantly crimson as gore splattered against reinforced glass and steel walls. Shattered organic matter drifted like macabre confetti before slowly sinking to the floor of the tank. Silence returned—thick and suffocating.
"Tch. Another failure," one of the CP0 agents said disdainfully, as if commenting on a broken tool. "It seems your experiment doesn't carry the merit you so proudly boast, Judge." That was the moment something in Judge snapped.
"You—!" Judge whirled around, fury blazing behind his visor. "You give me substandard genes and substandard test subjects and expect a miracle?!"
He jabbed a finger toward a cold steel table in the corner of the lab. Laid upon it was a dissected corpse. The remains of a Charlotte sibling. If Katakuri had seen this, Judge knew his head would have been torn from his shoulders without hesitation.
"That," Judge snarled, "is the closest thing you could give me to Linlin's DNA. A fraction. A pale shadow of the original. And you expect me to recreate a monster like Big Mom from that?"
His voice rose, echoing through the vaulted chamber. "When I asked for Charlotte Linlin's genetic material, you handed me one of her lost children instead—captured in the chaos after her fall, dissected like cattle, DNA stripped and diluted!" He slammed his palm against the console.
"If I had Linlin's DNA—hers alone—I could guarantee success! Forty percent transfer at minimum! But this?" He gestured angrily at the ruined tank. "This is what happens when you cut corners!" Judge's glare sharpened, venom dripping from every word.
"Give me someone I've already helped awaken the trait in. One of the Bloodsteel commanders. Someone like Charlotte Katakuri—and I will give you results that will shake the world."
He scoffed bitterly.
"But no. You give me scraps and expect divinity in return. And these test subjects?" His eyes flicked toward the remains in the tank. "Their bodies are laughably inadequate. You're trying to force a legend into fragile flesh." Judge spread his arms wide, voice heavy with scorn.
"You expect me to stuff an elephant into a chicken and call it science." His words hung in the air, daring the masked agents to deny the truth. Behind their porcelain masks, the CP0 agents remained silent. But the tension in the room had shifted.
"So you are saying… that if we provided you with higher-grade test subjects, you could guarantee success—is that it, Vinsmoke Judge?"
The voice cut through the lab like a drawn blade. It was calm, measured—but beneath it lay a killing intent so sharp that even a misplaced breath might have sealed Judge's fate. The CP0 agent's masked gaze bored into him, unblinking, as if weighing whether the scientist in front of him was still worth the air he consumed.
For a heartbeat, the room seemed to hold its breath. Then Judge's eyes hardened.
"Yes, you bastards," he snapped, fury finally boiling over. "If you give me test subjects of superior quality, I can absolutely guarantee success!"
The words left his mouth with more force than caution. Judge had never liked dealing in assumptions—he demanded certainty, absolutes, repeatable results before making promises. But the blind disdain in those masked stares, the casual disposal of lives, had pushed him past restraint.
He didn't know if he could truly keep that promise. But pride—and survival—left him no other choice. The first CP0 agent let out a faint chuckle. There was no anger in it. No offense taken. Only amusement. He turned slightly toward his partner, who gave a near-imperceptible nod.
After all, they had never come here seeking guarantees. They were here on the Gorosei's direct orders. Even a ten-percent success rate would have been enough. Judge was merely the gateway.
"Very well," the first agent said, already turning away. "Then follow us."
Judge stiffened as they began moving toward the far end of the vault. This laboratory—where failures were cataloged and discarded—was merely an outer shell. The true heart of the facility lay deeper. Far deeper.
They walked in silence, footsteps echoing through narrowing corridors of reinforced steel and bedrock. The air grew colder, heavier, the hum of machinery shifting into something deeper and more ominous. It took more than a dozen minutes of continuous descent before they finally stopped.
Before them stood a massive vault door—towering, seamless, and utterly imposing. Armed guards lined the walls on both sides, unmoving, their weapons held at rest but unmistakably live. This was not Marine security. This was absolute authority. The first layer activated.
A circular lens slid open from the door's surface, bathing the CP0 agents in pale light. Retinal scans completed in seconds, followed by full biometric confirmation—heartbeat patterns, neural signatures, even subconscious muscle responses.
Authorization confirmed.
The second layer followed immediately. A voice-recognition system engaged, demanding a spoken code phrase that changed daily. The agents spoke in perfect unison, their words precise, emotionless. The system paused… then accepted.
Finally, the last safeguard emerged. A holographic interface projected a rotating string of symbols—a 48-character hexadecimal encryption key, shifting in real time. The code had been transmitted only moments earlier from the Holy Land itself, delivered via encrypted Transponder Snail to these two agents alone.
The first CP0 agent entered the sequence flawlessly. The vault responded. With a low, thunderous groan, the door's internal locks disengaged—one after another—until the entire structure slowly parted, revealing darkness beyond. Judge swallowed. He understood immediately.
Once this door closed behind him, there would be no leaving without the Elders themselves knowing. Every step, every breath, every discovery from this point onward would be recorded, monitored, judged. The CP0 agent stepped aside slightly.
"Welcome," he said flatly, "to the true core of this facility….Project Seraphim."
Judge adjusted his visor, heart pounding despite himself. Whatever lay beyond that door… It was no longer science alone. It was the future the World Government intended to forge.
The moment Judge stepped inside, he knew—this laboratory was nothing like the one he had left behind. The air itself felt different.
Where the outer labs had been cold and clinical, this place was vast, cathedral-like, illuminated by a soft, artificial glow that mimicked sunlight far too perfectly to be comforting. Towering pillars of reinforced glass and alloy rose from the floor to the ceiling, each housing complex machinery, life-support systems, and data streams that moved with eerie precision. Everything here was alive—not merely functioning, but breathing, watching, waiting.
Judge's eyes narrowed behind his visor. He saw them. Familiar faces. Scientists—former colleagues from the days of MADS. Minds that had once burned with ambition and arrogance, now dulled by exhaustion. Some were older, visibly worn down by years of forced labor. Others looked unchanged physically, yet their eyes told a different story—guarded, hollow, constantly flicking toward surveillance Den Den Mushi embedded in the walls.
They were not collaborators. They were prisoners with lab coats. Every workstation was monitored. Every movement logged. Armed personnel stood at key junctions, silent and ever-present. This was not a research facility driven by curiosity. It was a factory. One that produced gods.
Judge scoffed softly. He felt no pity for them—pity was a luxury for men who were safe. What caught his attention instead were the data feeds scrolling across massive holographic displays, the genetic diagrams layered atop anatomical blueprints that made his breath slow. This was no ordinary weapons project.
"…May I ask," Judge finally said, voice calm but sharp with interest, "what exactly this Seraphim Project is meant to be?"
The CP0 agents stopped. One of them turned just enough for his porcelain mask to catch the light.
"The ultimate military force," the agent replied without hesitation. "The replacement for the Seven Warlords of the Sea."
Judge's eyes widened—just a fraction. The agent continued.
"The Seraphim are artificial beings created using the most advanced science available to the World Government. At their core lies the bloodline element—Lineage Factor—extracted, refined, and perfected using the research left behind by MADS."
Judge clicked his tongue. "So that's why you dragged us all here."
"These beings," the agent went on, "are modeled after the strongest templates available. Some of the strongest monsters to have ever sailed the seas."
At a gesture from the agent, a massive display activated. Little infants appeared on the screen. No—not infants. They were small, yes, but their presence was unmistakable. Pale skin. Snow-white hair. Dark, flame-like wings folded neatly behind their backs. A flickering fire burned eternally at their shoulders, radiating quiet, terrifying power. Judge inhaled sharply as he realized it instantly.
"Lunarian…" he muttered.
"Yes," the CP0 agent confirmed. "The Seraphim inherit the traits of the Lunarian race—near-invulnerability, extreme durability, and adaptive combat potential. Their lineage factor was recovered from the last known Lunarian survivor."
King. Judge understood immediately. "Combined with this," the agent continued, shifting the display. The eyes of the Seraphim glowed red.
"Artificial Devil Fruit abilities," he said. "Replicated devil fruit powers, perfected beyond the limitations of the originals. Laser weaponry derived from Vice Admiral Kizaru's light-based attacks. Combat instincts of some of the greatest fighters programmed through continuous battle simulations."
Judge's lips parted slightly. This was… excessive.
"These are not clones," the agent added. "They are weapons. Loyal only to the World Government. They do not age like humans. They do not question orders. And unlike pirates, they do not betray." Judge folded his arms slowly.
"And my role?" he asked. "You didn't bring me here just to admire your toys." The agent's gaze hardened.
"Despite their perfection," he said, "the Seraphim still have limits. Their durability has a threshold. Their growth curve can be improved. And there are traits—certain monstrous traits—that we wish to integrate."
The agent turned fully to Judge. "Charlotte Linlin's Iron Balloon is one of them."
Judge finally smiled. Not with warmth. But with hunger. "So," he said softly, eyes gleaming behind the visor, "you want to turn your angels into indestructible gods."
The CP0 agent did not deny it. "The world is entering an era of unprecedented chaos," he said. "We intend to stand above it."
Judge looked once more at the Seraphim on the screen—those childlike faces hiding power that could shatter nations.
"…Heh," he chuckled. "You really are insane." But even as he spoke, his mind was already racing—calculating, adapting, dreaming. For the first time since his capture, Vinsmoke Judge understood. This project did not need him to survive. It needed him to succeed. And if he did… The world itself would never be the same again.