Biocores: The Legendary Weapon Designer-Chapter 51: The power of a Railgun

The impact had left Nioh’s body rattled, his vision blurring as alarms blared inside his cockpit. His mecha’s internal systems flickered erratically, struggling to stabilize after the violent explosion.

With a sharp inhale, he forced his arms to move, gripping the controls even as pain lanced through his muscles. His fingers trembled. His limbs felt like lead.

Outside, his jet-black mecha twitched, its golden veins dimmed from the shock. Sparks crackled along its frame as it wobbled, sinking slightly into the debris beneath it. The mechanical joints groaned in protest as he tried to push himself upright.

"I really hate when you put me in these situations," Ekoh muttered.

"Don’t lie—you love the attention," Nioh shot back, smirking despite the exhaustion weighing on him.

To everyone’s shock, Nioh disengaged his mecha metamorphosis, his towering machine dissolving in a shimmer of golden particles as he returned to his human form.

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Inside the Royal Quarters, the atmosphere was suffocating with tension. The Queen and her Dukes watched in absolute silence.

Warden Jubilee narrowed his eyes. "What is he planning?"

Duke Duval exhaled sharply. "He probably doesn’t have enough energy to maintain his mecha form. His best bet is to hope that the GyroShark is just as mangled as he is."

The Queen’s expression darkened. "Prepare an intervention team—I will not let him die here."

On the battlefield, Nioh’s battered body moved sluggishly, his every breath ragged. His fingers trembled as he pressed a button on his hearing aid, the rythmwalker.

Track 1: Auditory Hallucination.

The moment the soundwave activated, the air itself shifted. An unknown pressure crashed down upon the battlefield, so intense that the rubble trembled beneath him.

Nioh’s right eye flashed emerald, and golden runes erupted across his body, pulsating in rhythmic patterns.

Then, he roared.

The soundwave that followed bathed the entire island in its force, shaking the very earth and sky. His body became enveloped in a brilliant golden aura, his hair and clothes whipping wildly as if caught in an unseen storm.

Under the power of the Sin of Envy, the harmonic waves surrounding him distorted, bending to his will, converting into a symphony of lethal sound energy.

Nioh grinned. "Let’s give them a show."

The GyroShark froze.

Every instinct within the beast screamed at it to run—its feral senses warned that something terrifying had awakened. Yet those golden eyes locked onto it with an unshakable force. A promise of death.

The moment it tried to move, it knew it would die.

Nioh began to levitate, his body effortlessly lifted by Ekoh’s gravity manipulation. As he rose higher, his grin twisted into something almost maniacal.

Then, he laughed.

The sound was unnatural, inhuman—not one voice, but a thousand, layered into a nightmarish chorus that rolled across the battlefield like an unrelenting tide.

It was triggering. Overwhelming. Maddening.

Even the other challengers faltered, hands snapping to their ears, their bodies recoiling from the unbearable resonance.

The GyroShark and the other feral biocore convulsed violently, caught between the primal urge to flee and the absolute certainty that escape was impossible.

The next word that left Nioh’s lips carried the weight of history, as if it had been spoken by the echoes of a forgotten past.

A single, undeniable command.

"Kneel."

The sheer authority in his voice sent a pulse through the battlefield, a resonant decree that spread across Narnia like an unrelenting tide.

Every living creature felt it.

It wasn’t a suggestion. It was law.

One by one, bodies buckled, knees crashing against the scorched earth. It wasn’t just submission—it was an act of reverence, as if an entire nation was acknowledging its king.

At the very center of it all, Nioh stood alone, elevated above them, unshaken.

A stunned silence gripped the war room.

"Absolute Command," Warden Cohen whispered, his voice barely audible.

Duke Tush exhaled sharply. "I expected powerful sound manipulation—but this? I never imagined he’d inherit that ability."

"This is the emergence of another Absolute Monarch," Warden Jubilee said, his expression grim.

Duke Duval, however, clenched his fists. "No." His voice was sharp, resolute. "Inanos was never this brazen in his youth. This isn’t just the birth of a monarch—this is the birth of an absolute calamity."****"If he is allowed to live, within a decade, none of us will be able to resist him. He must die on this island."

He turned, ready to issue an order—

"Don’t move!" The Queen’s voice cut through the tension like a blade.

Duke Duval glared. "Sister-in-law, you understand what we’re dealing with! We cannot let this monster walk away!"

Her golden eyes hardened. "Do not interfere. Twenty million people are watching."

The entire room fell into stunned silence.

They all knew.

They had seen it before.

Inanos the Monarch had used this ability to dominate the world for a century. If not for old age, not even they could have challenged him.

And now, standing on that battlefield, a new calamity had been born.

For the first time, they agreed on something.

Nioh could not be allowed to exist.

Nioh’s golden gaze remained locked onto the GyroShark—the only creature still resisting.

The beast trembled, its massive body quaking as it fought against the unseen force. Its instincts screamed, its will defied—

But it was not enough.

"If you refuse to kneel—then bow."

The moment the word left his lips, all the sound waves at his command converged into a single, devastating point.

A thunderous crack tore through the air as the GyroShark’s skull slammed into the ground with earth-shattering force.

The entire island trembled.

A cold chill ran through the spines of every being present.

None of them dared to look up.

At that moment, Nioh was the Monarch.

He descended like a comet, crashing into the shark’s spine with a force that shattered bone.But he didn’t stop.

Stomp.

A howl of pain echoed through the island.

Stomp.

The ground cracked beneath the weight of his wrath.

Stomp. Stomp. Stomp.

The once-feared feral biocore wailed, its cries drowned beneath the relentless, merciless punishment.

Ekoh’s voice crackled through. "I can’t hold much longer!"

At the same time, cracks began to spread across Nioh’s own body, like glass fracturing under pressure. He was running on willpower alone.

But he knew.

It was time.

Nioh lifted his head toward the sky, his glowing eyes meeting the gaze of the recording drones.

And then—

From above, a golden coin descended, spinning slowly as it reflected the light of the clear sky.

A bright radiance bathed his face, catching the slight curve of his lips—

Before everything was engulfed in blinding light.

Then, the world heard the loudest bang.