The red world was flickering.
Kael's vision didn't just blur; it stuttered, like a dying transmission.
Four of the wolverines lay in heaps of cooling meat and matted fur around him, but the victory felt hollow—literally.
Inside his marrow, there was a vacuum.
The [Bone Blade], which had felt like a solid extension of his rage just seconds ago, began to vibrate with a high-pitched, crystalline frequency.
Then, with a sound like glass shattering under a wet towel, it disintegrated.
The shards of calcified blood didn't just vanish; they pulled back into his forearm, dragging a scream of raw, unadulterated agony from his throat.
[CRITICAL WARNING: VITALITY DEPLETION AT 92%]
[SKILL 'BONE BLADE' FORCIBLY DEACTIVATED. COOLDOWN: UNKNOWN.]
He tried to flex his fingers. Nothing happened.
His right arm was a heavy, useless log of dead meat.
The fifth wolverine—the largest of the remaining pack, a scarred beast with a missing ear—saw the light die.
It didn't hesitate. It didn't wait for a tactical opening.
It knew when a predator had turned back into a carcass.
Kael watched it launch. It felt like watching a slow-motion car crash.
He couldn't dodge. He couldn't parry.
He simply raised his bare, trembling left arm to shield his throat, a pathetic, human gesture that the abyss usually answered with a snap of jaws.
The beast's hot breath hit his skin, the smell of the dead pack members thick on its tongue.
This is it, Kael thought, a strange, detached calm settling over him.
Thrown off a bridge by a friend, only to be eaten in the dark by a dog.
Then, the air was torn apart.
A scream, raw and jagged enough to strip the moss from the walls, erupted from the shadows behind him.
"Get down, you fool!"
A flash of tarnished silver blurred past Kael's peripheral vision.
Sera didn't run; she collided with the space between Kael and the beast.
Her longsword, chipped and dulled from a dozen previous battles, didn't whistle through the air—it groaned.
She swung it with a violent, desperate torque of her entire body, using the weight of her remaining armor to add momentum to the strike.
CRACK.
The blade didn't slice through the wolverine's neck.
Instead, it smashed into the creature's front shoulder with the force of a falling anvil.
Bone shattered. The beast's howl of triumph turned into a high-pitched, gurgling shriek as its foreleg was sheared off at a grotesque angle.
The monster tumbled, skidding through the mud and black ichor, its remaining paws frantically trying to find purchase in the slick floor.
Sera didn't follow up. She couldn't.
She landed heavily on one knee, the impact making her breastplate scream against her ribs.
She was shaking—not the tremor of fear, but the vibration of a machine being pushed past its breaking point.
"Can you... walk?" she rasped, not looking back.
Her hair had come loose from the severe knot, falling in blood-clotted strands over her eyes.
"I..." Kael started, but the words died as he saw the way her sword-hand was spasming.
"Shut up and move," she hissed.
She didn't give him a choice.
Sera reached back, her gauntleted fingers digging into the collar of Kael's tunic with a strength that shouldn't have been possible for someone in her condition.
She dragged him, literally hauling his dead weight toward the junction where she had collapsed the pillar.
Behind them, the rest of the pack had recovered from the shock of the Alpha's disappearance and the carnage Kael had wrought.
The howls were starting again—lower, more cautious, but infinitely more persistent.
"There," Sera pointed with her chin toward a narrow, jagged vertical fissure between the fallen granite pillar and the cavern wall.
It was a mistake of physics, a gap no wider than a man's chest, created by the uneven way the stone had settled.
To a massive Slasher Wolverine, it was a wall.
To a desperate, starving human, it was a cathedral door.
"Get in. Now," she commanded, shoving him toward the crack.
Kael scrambled, his boots slipping on the gore-slicked floor.
He squeezed into the fissure, the cold, wet stone scraping the skin off his shoulders.
It was a suffocating, rib-crushing fit.
He popped through the other side like a cork from a bottle, tumbling into a small, dry chamber.
Sera followed. She didn't squeeze; she forced.
The sound of her armor screeching against the rock was like nails on a chalkboard.
She let out a muffled grunt of pain as her injured shoulder took the brunt of the friction.
She tumbled into the chamber beside him just as a massive, clawed paw slammed into the fissure from the outside.
The stone held. The wolverines howled in fury, their snouts poking into the gap, but they were too broad-shouldered to pass.
For the first time in an hour, they were safe. Or at least, they weren't being eaten.
The chamber was an old mining cache, a dead-end pocket filled with rusted crates and the skeletal remains of a long-abandoned trolley.
A single, dim bioluminescent fungal patch on the ceiling provided just enough light to see the dust motes dancing in the air.
Kael collapsed against a crate, his breath coming in shallow, ragged thumps.
He looked at his arm. The skin had closed, but it was pale, translucent.
He could see the veins beneath, pulsing with a weak, sickly green light.
"Sera..." he panted. "Thanks."
The woman didn't respond.
She was leaning against the far wall, her head tilted back against the stone.
Her breathing was the only sound in the room—a wet, whistling noise that made Kael's own lungs ache.
"Don't... don't thank me," she said, her voice barely a whisper.
Kael frowned. He pushed himself up, his eyes adjusting to the low light.
"You saved my life. Back there, and here. I thought you were gone."
"I told you," she coughed, and this time, a spray of dark, arterial red flecked the floor between her boots.
"I don't... leave strays... until they've paid their... debt."
She tried to reach for her canteen, but her arm dropped midway.
That was when Kael saw it.
The light in the room was dim, but it was enough to highlight the change.
The center of her breastplate, already dented from previous blows, now had a fresh, jagged puncture.
A piece of the wolverine's bone-shard or perhaps a fragment of her own sword had driven through the steel.
A dark, heavy stain was spreading across her chest, swallowing the silver of her armor in a deepening circle of shadow.
It wasn't the black ichor of a monster. It was the bright, oxygenated red of a Rank D warrior whose heart was trying to pump her life onto the floor.
"Sera! You're hit," Kael scrambled toward her, forgetting his own exhaustion.
He reached for the buckles of her armor, his hands fumbling with the leather straps.
"Don't... touch it," she gasped, her hand feebly gripping his wrist. Her skin was ice cold.
"If you... open the plate... the pressure... it'll just come out faster."
She was right. The armor was acting as a crude tourniquet, holding the wound together by sheer force of the dented metal.
Kael's heart hammered. He wasn't a medic.
He was a scavenger who had just discovered he was the host of a blood-drinking system.
"System!" he hissed, the word a desperate prayer.
"Do something. Scan her! Is there a potion? A reward? Anything!"
The interface flickered to life, no longer a proud gold, but a somber, flickering violet that seemed to mourn.
[DIAGNOSIS: COMPANION (BOND PENDING) IN CRITICAL STATE.]
[INJURY: PERFORATED RIGHT LUNG / INTERNAL HEMORRHAGE.]
[VITALITY: 14% AND DROPPING.]
[ESTIMATED TIME TO CESSATION OF LIFE FUNCTIONS: 09:42.]
"Nine minutes?" Kael's voice broke.
"I just found her! You said she was a 'Sword-Heart'! You can't let her die!"
[NOTICE: THE SYSTEM IS CURRENTLY IN 'ENERGY SAVER' MODE DUE TO HOST DEPLETION. REGENERATION OF OTHERS REQUIRES 'SYNC LEVEL 50'.]
[CURRENT SYNC WITH SERA: 48%.]
"Forty-eight? Only two percent?"
Kael looked at the woman. Her eyes were half-closed, the icy blue irises dulling into the color of a frozen lake.
She was slipping away, her spirit retreating into the core of her being to find a warmth that wasn't there.
"Sera, look at me," Kael commanded, grabbing her face with both hands.
He didn't care about the subtext or the conflict anymore. He cared about the only person who hadn't pushed him into a pit.
"Stay awake. You hear me? You don't get to die because of a scratch."
She managed a weak, mocking smile.
"A scratch... huh? You're... a terrible liar, Kael."
"I'm serious. I have a way. I just... I need you to trust me. Really trust me."
"Not just 'follow me so I don't die' trust. I need the 2%."
Sera's head lolled to the side.
Her hand, the one that had held the broken sword so fiercely, went limp.
"Too... tired..." she whispered.
"The dark... it's not so bad... once you... stop fighting it."
[WARNING: VITALITY AT 8%.]
[TIME REMAINING: 04:15.]
Kael felt a surge of rage—not at Darius, not at the monsters, but at the machine in his head.
"If she dies, I quit," Kael whispered, his voice a promise of suicide.
"I'll walk right back out into that tunnel and let them tear me apart. You want a King? A King doesn't let his first knight die in a mining closet."
The System didn't respond with text.
Instead, a new prompt appeared, glowing with a dangerous, bleeding red light.
[EMERGENCY PROTOCOL: BLOOD TRANSFUSION BOND.]
[WARNING: THIS WILL LINK YOUR LIFE FORCES PERMANENTLY. IF SHE DIES, YOU SUFFER A 50% PERMANENT STAT DEBUFF. IF YOU DIE, SHE FOLLOWS.]
[PROCEDURE: PRESS YOUR OPEN WOUND TO HERS. CHANNEL THE REMAINING SYSTEM ENERGY.]
Kael didn't hesitate.
He didn't think about the long-term consequences or the fact that he was tying his soul to a woman he'd known for twenty minutes.
He ripped open the scar on his forearm with his teeth, the skin yielding with a sharp metallic tang.
Then, he reached for the hole in Sera's armor.
He didn't remove the plate; he shoved his bleeding arm into the jagged gap in the steel, pressing his raw flesh directly against the warm, bubbling wound in her chest.
"Agh!" Kael gritted his teeth as a sensation like molten lead being poured into his veins erupted through his arm.
Sera's body convulsed.
Her eyes flew open, the pupils blowing wide as the System's energy began to bridge the gap between them.
[BOND SYNC: 49%... 50%!]
[RECOGNITION COMPLETE. SWORD-HEART 'SERA' OFFICIALLY LINKED.]
[INITIATING 'LIFE-SHARE'...]
Kael felt his own strength—the meager, pathetic scrap of life he had left—being sucked out of him like water through a straw.
His vision went white. His heart skipped a beat, then another, trying to find a rhythm that matched hers.
Sera let out a long, shuddering gasp.
The whistling in her lungs stopped. The color didn't return to her face, but the gray, deathly pallor receded.
"What... what are you doing?" she choked out, her voice stronger, filled with a sudden, terrified clarity.
"Saving... us..." Kael managed to say, before his knees finally gave out.
He fell forward, his head landing on her uninjured shoulder.
He was too weak to move, too spent to even keep his eyes open.
But he could feel it—a warm, golden hum vibrating between them, a tether that was no longer just a violet line in his vision, but a living, breathing connection.
Sera sat there, her hand tentatively coming up to rest on Kael's hair.
She looked at the boy—this Rank F enigma who had just done something that defied every law of mana she knew.
"You're an idiot, Kael," she whispered, her voice trembling.
"A total, absolute idiot."
The silence returned to the chamber, but it was heavy now.
Kael was unconscious, his breath shallow but steady.
Sera sat with her back to the stone, her hand still on his head, her icy eyes watching the narrow fissure they had crawled through.
She felt... different.
The pain was still there, a dull throb in her chest, but the 'emptiness'—that hollow void of mana depletion that had haunted her for weeks—was being filled by a slow, rhythmic pulse coming from the boy.
She looked at her hand.
A faint, rose-gold mark, shaped like a stylized hilt, was beginning to fade into the skin of her palm.
"A King," she murmured, the words tasting like ash and hope.
"Gods help me, I've picked a King."
Suddenly, a sound echoed from the tunnels outside.
It wasn't a wolverine.
It was the sound of a heavy, slow footstep. Thump. Thump. Thump.
And then, a voice—deep, resonant, and dripping with a polished, aristocratic cruelty.
"I know you're in there, Sera. And I know you've found a little friend."
Sera stiffened. Her hand instinctively reached for her broken sword, but her fingers wouldn't close.
"Darius?" she whispered, her face turning a shade of white that had nothing to do with blood loss.
Kael stirred in his sleep, his brow furrowing as if he could hear the name of the man who had murdered him.
The shadow of a man appeared against the fissure, blocking out what little light was left.
He didn't try to come in. He simply stood there, his presence radiating a Rank C pressure that made the air in the small room turn into lead.
"I've come to collect my property, Sera," the voice said, a cold smile audible in every syllable.
"And to see if Kael really stayed dead this time. It would be such a shame if I had to kill him twice."
Sera looked at the unconscious Kael, then at the crack in the wall.
"He's not yours to collect anymore," she hissed, though her voice lacked the power to back up the threat.
The man outside laughed—a short, dry sound.
"We'll see about that. I'll give you until the shadows reach the ceiling. After that... I stop being polite."
The shadow vanished, but the pressure remained, a suffocating weight that told them the exit was no longer an option.
Kael's eyes snapped open. Not blue. Not violet.
But a deep, murderous gold.
"Darius," he breathed, the name a curse.
The System chimed one last time before the darkness took them.
[NOTICE: THE HUNTER HAS BECOME THE PREY.]
[NEW QUEST: SURVIVE THE BETRAYER.]
[REWARD: UNLOCKING THE 'FIRST HAREM CHAMBER'.]
Kael looked at Sera. Sera looked at Kael.
The clock was ticking. And they were trapped in a room with only one way out.