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Sung Jinwoo-The Knight of Death

Summary:

Jinwoo is fully prepared to die in the Double Dungeon, relieved at least by the knowledge that his friends had escaped successfully.

Something else has other plans for him though.

The Blood Red Commander served Ashborn loyally during the age of Monarchs.

Now, its time for the Onyx Commander to take his place.

 

OR

Jinwoo gains the power to transform into Igris' Shadow form rather than the system. Will still follow the same story, only with Jinwoo's main power being a form of Spiritual Body Manifestation rather than the system.

Chapter 1: Arise

Chapter Text

The altar was colder than Jinwoo expected.

Not because stone was cold by nature, but because this stone had never known warmth. It sat at the center of the chamber like a verdict rendered long before anyone entered, its surface carved smooth by time and purpose rather than care. Blood pooled shallowly along the channels etched into it, following grooves that had been cut with deliberate precision, guiding life away from the body laid upon it.

Jinwoo lay still. He could feel the cold through his back, through what remained of him. The sensation was distant, muted, like pressure felt through thick cloth. Pain existed somewhere beyond that, but it had dulled into something abstract, no longer sharp enough to command his attention.

He stared upward. The ceiling loomed far above, lost in shadow between massive stone ribs that arched inward like the inside of a cathedral built for something that despised prayer. Carvings lined every surface. Stone faces twisted in silent judgment. Hands raised in warning or command. Blades frozen mid-descent.

Nothing here had been made for mercy.

He tried to move.

Nothing responded.

‘My leg is gone.’

The thought surfaced calmly, without panic. Just recognition.

Below one of his knees, there was no sensation. No pressure from the altar. No feedback at all. His mind reached downward and found nothing waiting for it. The absence felt wrong in a way that was difficult to articulate, like missing teeth discovered by tongue rather than mirror.

His arm registered next.

One was twisted unnaturally at his side, pinned beneath him, sensation fading rapidly. The other ended abruptly, awareness stopping where it should not have. Blood seeped steadily from both, warm at first, then cooling as it spread across the stone.

‘So this is how it ends.’

The thought did not feel dramatic. It felt tired.

Somewhere beyond the altar, boots scraped stone. Voices overlapped in panic and urgency. Orders barked. Names shouted. Someone cried out once, sharply, before the sound was cut short by distance.

They were running.

They had made it out.

A part of Jinwoo loosened at that. ‘Good.’

His chest tightened as he tried to breathe more deeply. The air felt thick, heavy in his lungs. Each inhale burned faintly, as if his body had begun to forget the mechanics of staying alive.

The statues lining the chamber were motionless again. Massive stone knights stood frozen where they had halted, blades lowered, heads angled downward in something that might have been contemplation if they were capable of it. The silence they left behind was oppressive, not empty but expectant.

Satisfied.

As if the room itself believed its work complete.

Jinwoo stared at them through unfocused eyes.

‘I don’t want to die.’

The thought surprised him with how blunt it was.

Not a plea. Not a bargain. Just refusal.

He thought of his mother, pale beneath hospital lights, machines marking time beside her bed. He thought of his sister, pretending not to worry when he came home late, pretending not to notice the tremor in his hands when he counted money at the table from his latest raid after leaving the hospitals.

‘I didn’t come this far just to stop here.’

His fingers twitched weakly against the stone.

Unfair. ‘This is unfair!’ He screamed mentally, anguish filling him at the realization of what he would be leaving behind. 

He had known the risks. Everyone did. Weak hunters died first. That was how the world worked. But knowing something did not make it easier to accept when it was your blood cooling on an altar meant for slaughter.

His vision began to dim around the edges. For a moment, he thought that was it. That the darkness would simply close in and he would be done thinking altogether.

Then the air changed.

Not temperature.

Not pressure.

Attention.

The chamber fell into a deeper silence, the kind that pressed inward rather than outward. The echoes of escape vanished completely, as if swallowed whole.

Jinwoo’s breath hitched.

‘What…?’

A voice spoke.

It did not come from the statues.

It did not echo from the walls.

It existed inside him, resonant and immense, like sound carried through bone rather than air.

‘Do you resent this end.’

Jinwoo jolted. Not physically—his body still refused him—but something in his mind recoiled violently. His heartbeat spiked, panic flaring sharp and sudden.

‘A voice?’ His eyes darted frantically, unfocused, searching the chamber despite knowing how pointless it was. The statues did not move. The hall remained unchanged.

‘I’m hallucinating.’

The thought came fast, desperate.

‘This is it. This is what dying feels like.’

His throat worked as he tried to swallow. The sound had not faded. It had not distorted. It waited.

Inside him.

‘No—this isn’t real.’

Yet the presence remained, vast and patient.

‘Answer.’

The single word pressed inward.

Jinwoo’s breath stuttered. His lips trembled.

‘I—’

Fear clawed up his spine. Not fear of death—fear of the unknown. Of something noticing him when he was weakest. Of being seen. Of gaining the attention of something he couldn't even use words to identify. 

“…Yes,” he rasped aloud, voice breaking despite himself.

The admission felt like tearing something open.

The presence did not react. ‘Do you wish to fight again.’

The words landed heavier this time. Images surged unbidden. Stone blades descending. Bodies torn apart. His own blood spreading across the altar.

‘Fight?’

Confusion tangled with disbelief.

‘I can’t even move.’

Yet beneath that, something else stirred. A spark of anger. Of refusal.  'I don’t want this to be it.’ Conviction manifesting from his rage. 

'I REFUSE this be it!’

“…Yes,” he whispered, barely audible.

The silence that followed stretched unbearably long.

Then—

‘Do you wish to live.’

The question struck harder than the others.

Jinwoo’s chest tightened painfully.

‘Is this thing… offering me something?’

The thought terrified him.

‘At what cost?’ His pulse thundered in his ears. His mind raced, scrambling for logic, for explanation, for anything that made sense.

There was none.

Only the altar.

Only the blood.

Only the voice.

‘I don’t want to die.’

“Yes,” he said hoarsely.

Immediately the presence shifted. ‘Very well.’

The attention closed around him fully now, encompassing without crushing, absolute without urgency. Jinwoo’s panic spiked again, instinct screaming at him to pull away despite having nowhere to go.

‘Wait—’

‘Then arise and be reborn… Igris.’

The name struck him like a blow.

‘Igris?’

It was unfamiliar. Heavy. It settled into him anyway, fitting into some place he had not known was empty.

Darkness surged.

Not shadow cast by light.

Shadow that consumed it.

It poured into him through every wound, every severed edge, every hollow place where his body had failed. Cold fire wrapped around his bones, flooding spaces that had never held anything before.

Jinwoo screamed. Weight returning to his body in waves of agony. He felt stone beneath his feet.

Wait...feet!

His eyes snapped open, groggily working through the pain pulsing in his body.

He was standing. Somehow fully upright without hindurence. His arm was back too, the appendage there as if it never left. That's when Jinwoo noticed just how those limbs came back.

The body he inhabited was no longer flesh.

It was shape.

A towering silhouette of shadow occupied the altar, its form vaguely humanoid but unmistakably other. Darkness clung to it in thick layers, folding over itself into the suggestion of armor without substance. Where plates met, shadow condensed into structured contours, their edges traced by faint, bright blue lines that pulsed like saphires beneath ash.

A cloak of living darkness streamed from his shoulders, rippling without wind, its edges dissolving and reforming constantly. His head was crowned by a helm formed of negative space, a long read plume emerging from the top of it. Within the visor, two cold blue lights burned steadily.

He raised one hand. The shadowy armor responded in tandem with the motion.

‘What… what did you do to me?’

The statues moved.

Stone blades lifted.

Instinct took over before fear could catch up.

Jinwoo’s breath was still ragged when as he stepped forward, but a new sensation bloomed inside him — a current of power, cold and commanding. His mind, still fogged with shock, focused instinctively on the darkness coalescing within his grasp.

‘Weapon.’

Shadow seeped around his feet like ink poured into water, swirling and bending upward toward his hand. It took shape first as a wisp, then as an edge — sharp, resonant, humming with the kind of dread that had no place in the living world.

A sword materialized in his right hand.

It was impossibly long — almost as tall as he was — with a form that felt both familiar and alien. The blade itself was a void of obsidian shadow, its surface absorbing the faint light around it instead of reflecting it. Runes flickered along the fuller in a cold blue glow, like frozen veins of ancient magic. The edge gleamed with a brittle luminescence, as if honed upon grief and purpose rather than steel. Where a hilt should have felt solid, it seemed to be carved from negative space — darkness that could be gripped, commanded, wielded.

‘… A-a Sword?' 

His grip tightened, and the sword responded — humming faintly, like a beast awakening beneath the surface of shadow itself.

Then the statues moved. At first there were only two — towering colossi of carved stone, each easily twice the height of a man. Their features were grotesque renditions of solemn, divine warriors: broad shoulders etched with runic script, faces frozen in expressionless stares, and eyes that flared with dull red as they recognized movement. In their hands — enormous weapons: one brandished a massive war-hammer, veined with cracks that glowed faintly like magma beneath stone; the other bore a serrated glaive, jagged as broken bone.

Their joints cracked with resonant groans as they stepped forward, voices of unseen gears echoing in the silence.

Jinwoo braced himself.

‘Focus.’

The first statue swung its hammer down with the inevitability of a collapsing mountain. The air itself vibrated with force. Jinwoo did not dodge. He rose onto the balls of his feet, inches beneath the strike, and let the momentum of his own intent carry him forward.

The blade in his hand sang as he slashed upward. Shadow lanced out in a streak of blue-black, cutting through stone and dust alike, scoring the statue’s leg. Crack. The stone spiderwebbed with fissures, but the statue did not slow. Instead, it twisted its massive torso, tiptoed forward on fractured limbs, and hurled itself at him again with reckless precision.

Jinwoo’s breath caught.

‘Too slow.’

He leapt.

The sword traced an arc through the space before him, herding the statue’s attack away, diverting it, turning it into nothing more than displaced sound and shattered earth. The blade’s edge hummed with impact, and where shadow met stone, fragments shook loose like rain hitting pavement.

Another statue joined the fray — this one grotesque in a different way: a hulking figure with flanged shoulders and a circular saw-like disc embedded in its chest, spinning faintly, humming with a predatory drone. Its eyes glowed coals of malice, and before Jinwoo could even form another thought, it lunged.

Metal and shadow collided.

Steel teeth bit into air.

Jinwoo’s blade cut through the first statue’s edge of attack, spiraling downward to meet the second with rotational precision. The runes along the sword flared as though awakened by the violence, and a pulse of energy rippled out in a crackling wave.

The second statue staggered.

Cracks webbed across its stone form, but the momentum of its own mechanism carried it forward nonetheless.

Jinwoo pivoted, letting his boot scrape against the altar’s cracked surface. The shattered stone fought his traction with every move, sending spires of grit spraying in arcs of raw motion. He advanced, blade raised, voice silent — intent unspoken yet absolute.

The hammer statue recoiled, then struck again, as if every motion it had been designed for was an echo of ancient authority.

Jinwoo met it head on. His blade lashed outward with a hiss of displaced mana. The impact was not loud. It did not roar. But the clash settled into the chamber like thunder settling into distant hills — soft, deep, yet unavoidably present.

The hammer broke.

Not shattered but cleaved apart as though it were made of wet clay. The fragments fell in chunks as Jinwoo’s blade severed it cleanly, the runic glow pulsing like a heartbeat in the dark.

The statue’s eyes dimmed — not extinguished, but unlit.

Behind him, the saw-disc statue spun again, faster this time, its rhythm jagged and discordant.

Jinwoo did not look.

He moved.

His shadow blade wove a path as if dancing in the blows. Each step was measured, every strike precise, pulse and breath synchronized with the rhythm of his intent. The saw statue lunged, teeth gnashing, arm extending outward in a brutal crescent thrust.

Jinwoo sidestepped. His sword flicked past the statue’s flank like water over rock. The blade’s glow carved a clean line of blue-black through stone, and the statue jerked as if shocked by betrayal from its own body. Pieces fell away, tumble upon tumble, until the once intimidating shape became a heap of carved ruin.

For a heartbeat, there was silence.

Dust settled.

Shadow curled around the hilt of the blade, eager, breathing.

Jinwoo stood alone.

Panting.

The echo of his heartbeat still thundered in his ears.

‘I don’t know what I just did.’ He thought to himself. ‘But that sword… it feels like someone is guiding it.’

He glanced down at the blade — cold, still humming — as if its song was waiting for another command.

Then — movement.

More statues advanced.

A dozen set upon him all at once. They were not identical to the first pair. Some bore great shields, their faces uncarved except for twin slits where eyes would be; others gripped massive spiked flails, entire limbs designed to crush rather than pierce. All moved with silent coordination, limbs creaking like ancient machinery unlubricated for centuries.

Jinwoo inhaled.

The blade hummed — not in his hand, but inside him.

A shadow pulse rippled down its length, responding to something he did not yet understand but enough he could make an educated guess. If this thing ran on Mana, then odds are his was just about to give. 

‘Then let’s make this count.’

With a roar that was more instinct than thought, he leapt into the circle. His blade flared a cutting void that met stone with the inevitability of memory.

The statues converged and Jinwoo met them — sword raised, shadow flowing, intent sharpened by fear and refusal both.

The clash began again.

Even as shattered armor littered the floor and broken swords lay half-buried in rubble, more knights stepped down from their places along the walls. Their movements were slower now, heavier, but no less precise. The chamber felt smaller with every step they took, stone boots grinding against stone floor in a rhythm that pressed against Jinwoo’s chest.

His breathing had become uneven.

Not from exhaustion—whatever this body was, it did not tire the way flesh did—but from pressure. From the sense that something unseen was tightening around him, counting down in a language he did not yet understand.

‘They’re endless.’

He pivoted, carving through another knight’s shoulder and driving it back into two others. Stone burst apart. Dust filled the air.

And still they came.

The blue glow behind his visor flickered.

Just once.

Jinwoo noticed.

‘Oh no...’

A blade scraped across his back, tearing away a strip of shadow. The sensation made him gasp, more shock than pain. The darkness recoiled sluggishly this time, slower to close the wound.

‘This isn’t permanent.’ The realization settled cold and heavy in his gut.

Another flicker. His grip tightened on the greatsword. ‘Then I don’t win this by killing them.’

Memory surfaced—not of this fight, but of what had come before it. Of the rules etched into the dungeon long before blood had soaked its floors. Of the way the statues had frozen when the survivors bowed. When they prayed. When they submitted.

‘They stop when they’re worshipped.’

The idea felt absurd even as it formed. ‘These things want obedience.’

A knight raised its blade overhead, shadow of the strike swallowing Jinwoo whole. He did not counter.

He stopped.

The sword struck the stone inches from his head, splitting the floor with a thunderous crack. Dust surged upward, obscuring everything for a heartbeat.

Jinwoo lowered his greatsword.

Then he knelt.

The motion felt wrong. Every instinct screamed against it. His shadow cloak rippled, uncertain, edges fraying as if resisting the command.

Jinwoo forced himself down anyway.

He bowed his head.

‘Please.’ The word tasted bitter. ‘If you’re gods… if that’s what you think you are…I beg for your mercy.’

Silence spread outward from him.

The knights froze.

Stone blades halted mid-swing. Boots locked in place. The grinding chorus of movement cut off so abruptly it made Jinwoo’s ears ring.

He did not look up immediately.

His chest heaved.

‘It worked.’

The glow behind his visor dimmed further, the blue lights thinning like coals losing heat.

‘I don’t have much time.’

Quickly but carefully, Jinwoo rose.

The statues did not react. They stood in perfect stillness, faceless helms angled downward toward him, frozen in eternal judgment.

Jinwoo turned, at the far end of the chamber, beyond the altar, the massive stone doors waited—parted just enough to promise escape.

He ran. Each step sent a tremor through the shadow body, its cohesion unraveling faster now. The sword in his hand grew heavier, less responsive, its hum weakening into silence.

Halfway across the chamber, the shadow peeled away from his arm in drifting ribbons.

‘No—now?’ He pushed harder. The doors loomed.

Behind him, stone cracked.

One statue twitched.

Then another.

The rule was breaking.

Jinwoo reached the threshold just as the shadow collapsed. Darkness tore away from him in a violent rush, dissolving into the floor like smoke caught in a sudden gale. The sword vanished from his grip mid-stride.

His body slammed forward, pain exploding through him as he hit the ground hard, breath torn from his lungs.

He rolled once and came to a stop on cold stone.

Flesh.

He gasped, clutching at himself.

Arms—solid. Legs—whole.

‘I’m… I'm back.’

Stone thundered behind him.

Jinwoo didn’t look. He crawled, then staggered, then ran again, bursting through the outer corridor and out into open air as the gate spat him back into the world.

Cold night wind hit his face. Asphalt scraped his palms as he stumbled forward and collapsed to one knee.

Voices shouted. Flashlights snapped on.

“—there! Someone just came out!”

Boots rushed toward him. Jinwoo lifted his head, vision swimming.

Song Chiyul froze mid-stride. “…Jinwoo?” His voice cracked, disbelief cutting through the authority he usually carried. “That’s—no, that’s not—”

Lee Joohee pushed past him. She dropped to her knees in front of Jinwoo without hesitation, hands trembling as she reached for his shoulders. “You’re alive,” she breathed, tears spilling freely now. “You’re actually alive.”

Jinwoo blinked up at them.

‘They made it.’

Relief hit him so hard his chest hurt.

“I thought you died,” Chiyul said hoarsely, staring like he expected Jinwoo to vanish if he blinked. “We saw—your arm—your leg—”

“I did,” Jinwoo said quietly.

Both of them stared.

Joohee laughed weakly through her tears. “You can’t just say that like it’s normal.”

Jinwoo tried to stand. His legs shook violently.

Chiyul was there instantly, steadying him. “Easy,” he said. “Just—easy.” As they guided him toward the gathered survivors and Association staff, Jinwoo became acutely aware of the stares. Not fearful. Not hostile.

Confused.

Something felt different.

"Wha-what's going on? Why's everyone loking at me like that?"

Joohee hesitated, then reached into her bag with shaking hands and pulled out a compact mirror. She held it up in front of him, cheeks slightly flushed.

“I—I think you should see.”

Jinwoo frowned and leaned closer.

The face staring back at him wasn’t the one he remembered.

His features were sharper. Jawline defined. Eyes clearer, darker. The perpetual exhaustion he’d worn like a second skin was gone, replaced by something quieter. Stronger.

He barely recognized himself.

‘That’s… me?’

He looked away, unsettled.

A shadow fell across him. It was sharp and orderly, cutting cleanly through the chaos of voices and flashing lights. Jinwoo looked up and found a man standing just outside the circle of medics and hunters — tall, broad-shouldered, dressed in a dark suit that looked untouched by dust or panic.

Woo Jin-Chul. His gaze was steady. Assessing. Not shocked — which unsettled Jinwoo more than if he had been.

“Sung Jinwoo,” Woo said calmly. “You were reported dead.”

The words landed heavier than they should have.

Jinwoo swallowed. “I know.”

A brief pause. Woo’s eyes flicked over him — arms, legs, posture, breathing. Taking inventory. “You were last seen incapacitated in the Double Dungeon,” he continued. “Severe limb loss confirmed by multiple eyewitnesses.”

Jinwoo said nothing. ‘Because I don’t have an explanation.’

Chiyul shifted uncomfortably. “Director Woo,” he said carefully, “I swear — he was—”

“I’m aware,” Woo interrupted without looking at him. His attention never left Jinwoo. “Which is why this situation requires clarification.”

Joohee’s grip tightened on Jinwoo’s sleeve. “He needs a hospital,” she said quickly. “He’s in shock.”

Woo inclined his head slightly. “And he’ll receive medical attention,” he said. Then, to Jinwoo, “After we talk.”

Something in his tone made it clear that this wasn’t a request.

Jinwoo nodded slowly. “Okay.” The word came out quieter than he expected.

The medics protested briefly. Forms were waved. Arguments half-formed and then abandoned under Woo Jin-Chul’s steady presence. Eventually, Jinwoo found himself guided away from the lights and voices and toward a black sedan waiting at the edge of the cordon.

The night felt colder away from the dungeon. Jinwoo paused before getting in, glancing back once at the sealed gate. It stood inert now, silent and closed, as if nothing inside it had ever moved.

‘Did that really happen?’