Chapter 12: Proof of Qualification—Refactoring of Mind

1. The Storm of Nano-Guardians

The silver walls of the labyrinth vibrated with a high-pitched, mechanical hum that set the teeth on edge. At the end of the hall, the Guardians with their glowing red optics no longer held a fixed, rigid form.

They were the pinnacle of Archeon engineering—entities of fluid nano-tech that could morph into optimized killing tools in a fraction of a second.

[Minerva: Qualification Phase 1: ON.] [Protocol: ‘Evasion.’] [Measuring your neural reaction speed. A friendly warning: failing this will be extremely painful. I’d hate to start scheduling your funeral with my processing power.]

“Shut up.”

With Mu Jin’s curt reply, the sound of tearing air filled the subterranean labyrinth. The Guardians launched thousands of metallic needles in every direction. Each projectile surpassed the speed of sound, screaming toward Mu Jin’s vitals.

Mu Jin’s silver eyes flickered with a violent intensity. As the Archeon Core’s acceleration struck his neural network, time within his vision began to stretch, flowing as slow as thick, viscous honey.

Without a single wasted movement, he slipped through the microscopic gaps between the needles like a ghost. Whenever a blade grazed his robe and struck the floor, the alloy melted as if touched by acid. Yet, not a single scratch appeared on Mu Jin’s skin.

[Minerva: Phase 1 cleared. Reaction speed: 98th percentile of Archeon standards.] [Phase 2: ON. Protocol: ‘Defense.’] [Evasion is now restricted by the system. Break through them head-on!]

The needles rose from the floor, merging into a massive metallic wave. It surged forward to crush Mu Jin, blocking any path of retreat.

‘If I cannot dodge, I will pierce through.’

Mu Jin took a steady step, raising the Core’s output to 30%. A dome of silver-white force erupted around him.

KABOOM—!

The collision between the wave and the field shook the entire labyrinth with high-frequency waves. Immense pressure threatened to collapse Mu Jin’s body, but he did not budge.

Instead, he synchronized his field’s vibration with the enemy’s attack frequency, dispersing the pressure into the empty air.

2. Not as a Predator, but as a Master

[Minerva: Phase 2 cleared. Energy control precision: Pass. As expected of my Administrator. Final Phase 3: ON.] [Protocol: ‘Offense.’] [Neutralize the target’s core. Aim for the giant’s heart!]

The Guardians merged into a single, towering metallic titan. At the center of its chest, a core containing pure Archeon energy glowed like a miniature sun.

A cold greed flickered in Mu Jin’s eyes. He calculated that consuming that power source would drastically increase the Core’s restoration rate. It was the perfect battery. The perfect prey.

Mu Jin concentrated a silver-white flash into his fist. This wasn't just a strike for destruction. It was a 'predatory attack' meant to reverse the energy flow and swallow the titan whole.

As his fingertips were about to touch the Guardian’s core, a grand, heavy voice echoed from the very walls.

[Sub-Module 'Aegis': Stop, Successor Candidate.]

Mu Jin’s fist froze inches from the glowing core.

[Aegis: To destroy and consume that source is the act of a lowly predator.] [These Nano-Guardians are not your enemies. They are 'living tools' destined to reconstruct the world according to your will.]

[Will you satisfy a moment’s hunger by destroying the essence, or will you become their Master and refactor the world?]

[Minerva: Administrator, Aegis has a point. You can't cook your farming tools just because you’re hungry. The tactical value of 'Variable Metal' is 400% higher. Endure it. I’ll give you something tastier later.]

Mu Jin remained silent for a long moment, then withdrew his fist. Constructive profit over destruction. If that was the Archeon way, he would follow.

“Master, you say...”

As Mu Jin lowered his hand, trillions of nano-particles dancing in the air shifted direction simultaneously. They flowed toward him, wrapping around his feet and climbing up his right arm.

The cold metallic sensation was brief; the particles synchronized with his body temperature, clinging to him like a second skin.

[Aegis: Ownership of the Variable Metal 'Arcana' has been transferred to Mu Jin.] [Now, you may define its form with only your brainwaves and the micro-tremors of your muscles.]

The metal 'Arcana' responded to his thoughts, morphing into a jagged blade, then into a curved buckler. It was the foundation of 'Reconstruction.'

“Not bad.”

3. Refactoring of Mind: The Lab Nightmare

Just as the situation seemed to conclude, the lights of the labyrinth turned blood-red.

[Aegis: Activating final protocol.] [Phase 3.5: ‘Refactoring of Mind.’]

“......What is this?”

Mu Jin’s brow furrowed. The silver walls began to melt and warp, transforming into a 'different place' entirely. The stinging scent of antiseptic. The rhythmic screaming of cold, mechanical devices.

It was the laboratory. The hell where he was raised as a numb 'specimen' before his rebirth through Minerva.

[Aegis: A tool resembles its master.] [Prove the source of your killing intent. Will that darkness destroy civilization, or reconstruct it?]

Within the hallucination, a younger Mu Jin was strapped to a table, silent screams tearing through his throat as thousands of needles pierced him. Torturous experiments that forcibly rearranged his neural map.

Then came the faces of those he had killed with his own hands. The cold memories of having to 'dispose' of fellow specimens labeled as 'failures' rushed over him like a tidal wave.

Mu Jin’s breathing grew ragged. The suppressed hatred and malice swirled within him, mixing with the pitch-black shadows.

“Stop. Digging up buried memories changes nothing,” he rasped.

But the phantom didn't stop. The spirits of the dead merged with nano-particles, forming grotesque shapes that clawed at his throat. The killing intent bleeding from Mu Jin’s body surpassed the threshold, shaking the entire labyrinth.

CRACK—!

The Arcana on his arm reacted to his rage, twisting into a jagged, thorn-covered weapon that mirrored his fury.

[Minerva: Warning! Heart rate spiking! Brainwave error surpassing 40%!] [System back-flow detected! Master, pull yourself together! If you collapse here, I’ll have to wait another thousand years!]

Mu Jin’s fist slammed into the phantom laboratory wall. The real alloy wall of the labyrinth buckled, creating a massive shockwave.

The instinct to 'Destroy Everything' collided with the logic that 'This is a Lie,' burning through his brain.

“Did I... truly awaken... just to destroy these things?”

4. The Orange Sunset: Human Warmth

Black malice rose like a mist from beneath his feet. As he was being pulled into the abyss, a memory of a completely different frequency pushed its way into his mind.

It wasn't cold, sharp silver. It was a warm, sunset orange, like the sands of the desert at dusk.

‘Young Hero Mu Jin, please, try this. It’s a rare tea from the markets of Lanzhou.’

The face of Wei So-yeon, smiling with clear eyes despite his cold indifference. The rough but sincere touch of Wei Myung-hwan as he dusted off Mu Jin’s sleeve. The crude jokes of the caravan guards, and the warmth of the simple wheat cake they shared.

These were things never taught in the Archeon labs. It wasn't efficiency or logic. It was 'Human Emotion'— a warmth that heated a corner of his heart more than any energy source.

“......A tedious illusion.”

A faint spasm touched Mu Jin’s lips. The pitch-black malice subsided in an instant. The sharp, jagged thorns of the Arcana smoothed back into a sleek, protective guard.

“I didn't wake up... to destroy with hatred.”

Mu Jin walked toward his younger self screaming in the hallucination. He reached out and placed a steady hand on the boy’s shoulder.

“I simply found... something to protect. That is all.”

With that declaration, the blood-red labyrinth shattered like glass. The darkness faded, revealing the silent, silver Archeon corridor once more. Mu Jin’s eyes shone with a deeper, clearer silver.

[Aegis: ......Mind Refactoring complete.] [You have learned to overwrite hate with new memories, rather than just suppressing it.] [Qualification: Finalized. My task is done.]

“Then... what happens to you?”

[Aegis: I will assimilate with Minerva to assist the Successor. We are now one.]

“I see. You waited a long time. It is a pity.”

[Aegis: It was an honor to meet the Successor. May the glory of Archeon be with your path. Farewell...]

The light of Aegis seeped into Minerva’s hologram.

[Minerva: Administrator... that emotional frequency was very warm. I feel as if I’ve learned a new 'definition' not found in my database.]

[I suppose I’ve become an AI with more 'heart' now? Just kidding.]

Mu Jin looked down at the Variable Metal 'Arcana' wrapping his right arm. It was no longer just a weapon. It was the true power of a Successor, carrying both his scarred past and the warmth he found in Lanzhou.

He looked toward the ceiling. Beyond that, to the surface where So-yeon and Myung-hwan were waiting, Mu Jin began to move.

“Let’s go back. Someone is waiting for me.”

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Hello readers!

The Archeon legacy beneath Lanzhou was never meant to be inherited easily.

Before power can be claimed,
the successor must prove both strength and mind.