Chapter 5: Sharpening the Blade
The next twenty-four hours were a blur of blood, bone, and grinding repetition.
We cleared the first floor three times before the reset. Each run was faster than the last. The first time took us six hours, with Seo-yoon and I doing most of the heavy lifting while the others learned the patterns. The second run took four hours, as Min-jun's strategies began to pay off and the weaker members started pulling their weight. The third run took two hours.
By the time the floor reset, everyone in the Butcher's Block had reached at least level five. Min-jun was level seven. Seo-yoon had hit level twelve. And I—
\[Kang Jin-ho\]
Class: Anatomist (D-Rank)
Level: 15
Strength: 52
Agility: 48
Vitality: 45
Magic: 12
Skills: Butchering Lv.5, Dagger Mastery Lv.4, Weak Point Detection Lv.3, Skill Theft (Passive), Intimidation Lv.2, Anatomy Knowledge Lv.3, Multi-Weapon Handling Lv.2, Blood Sense Lv.2, Blade Dance (Passive)
I was no longer the weakest person in the faction. I wasn't even close to the strongest—Seo-yoon could still outfight me in a straight contest. But I had something she didn't.
I could see where to cut.
---
In the second-floor chamber, a creature waited. It had once been human—or something close to it. The System had taken a survivor who wandered too deep into the tower and remade him into a Floor Guardian. His skin had hardened into chitin. His arms had become blades. His eyes had been replaced by orbs that saw in the dark.
He sat on a throne of fused bone, waiting for the ones who had been clearing his first floor with mechanical efficiency.
"Soon," he whispered to the darkness. "Soon they'll come."
And he smiled with teeth that were no longer human.
---
I stood at the entrance to the second floor, looking down a corridor that descended into darkness. The walls here were different—smoother, more organic. Veins of amber light pulsed beneath the surface like blood vessels.
"You don't have to come," I said to Seo-yoon for the second time.
She stepped up beside me, her sword drawn. "I'm level twelve. You're level fifteen. I think I'll manage."
"Your class is Paladin. Mine is Butcher. Levels don't tell the whole story."
She gave me a sideways look. "You're not going to talk me out of this."
"Wasn't trying to." I pulled out the weapons I'd crafted from our runs—a matched pair of goblin-bone short swords, their edges sharpened to a razor's edge using a combination of Butchering and the Flesh Sculptor technique I'd picked up from processing evolved creatures. "Just making sure you know what you're walking into."
"I know." She raised her sword. "A fight."
I smiled. It wasn't a nice smile, but it was real. "Let's go."
---
The second floor was a maze.
Not the random corridors of the first floor—this was deliberate. Designed. The walls curved in ways that funneled you toward certain paths, away from others. The ceiling was lower, forcing us to crouch in places. The floor was uneven, studded with growths that could trip you if you weren't watching.
My Weak Point Detection highlighted all of it. The structural weaknesses in the walls. The unstable floor sections. The hidden alcoves where ambushes waited.
"The System is learning," I muttered.
Seo-yoon frowned. "What do you mean?"
"The first floor was simple. Straight corridors, basic enemies, a single boss chamber. This floor is a trap." I pointed at a section of wall that was thinner than the rest. "There's something behind there. Waiting."
She tensed. "Can you tell how many?"
My Blood Sense flickered, painting vague outlines through the wall. "One. But it's bigger than the goblins."
We moved forward carefully. The corridor narrowed until we had to walk single file. I took point, Seo-yoon at my back, our footsteps echoing off the fleshy walls.
The ambush came when we were halfway through the narrowest section.
The wall exploded outward.
---
The creature had been waiting for three days, ever since the System had placed it here. It was a Hound—a four-legged predator with a hide of fused bone and a mouth that split its face in two. Its kind hunted in packs on the higher floors, but this one had been left alone to guard the approach to the Guardian's chamber.
When the wall burst open, it was already mid-lunge, jaws aimed at the smaller of the two humans—the one that smelled of blood and old meat.
It expected an easy kill.
---
I didn't have time to dodge.
The creature—something between a wolf and a lizard, all bone plates and too many teeth—launched itself at me with a speed that defied its size. My Weak Point Detection lit up like a Christmas tree: joints, eyes, the soft tissue beneath the jaw, the gap between the third and fourth vertebrae.
I chose the throat.
My left sword came up, blade angled to slip between two bone plates. The creature's momentum drove it onto the steel. I felt the blade bite deep, sever something vital, and then I was being thrown backward as its body crashed into me.
We hit the floor in a tangle of limbs and chitin. Its jaws snapped inches from my face. My right sword was pinned beneath me. My left was still buried in its throat, but the angle was wrong, I couldn't twist, couldn't cut deeper.
Seo-yoon's sword came down like a guillotine.
The creature's head separated from its body.
\[Bone Hound defeated. Experience gained.\]
\[Butcher skill activated. Processing…\]
\[Strength +8\]
\[Agility +10\]
\[Vitality +6\]
\[Skill acquired: Predator's Instinct Lv.1 – Enhanced awareness of enemy movement patterns.\]
\[Unique material obtained: Bone Hound Spine (7). Bone Hound Hide (1).\]
I pushed the corpse off me and sat up, breathing hard. Blood—my blood, not the creature's—dripped from a gash on my arm where a tooth had caught me.
Seo-yoon offered me a hand. I took it.
"That was close," she said.
"It was expected." I examined the gash. Superficial. The System's passive healing was already closing it. "The second floor isn't messing around."
We pressed forward. The corridors grew wider, the ceiling higher, the ambient light pulsing in a slow, hypnotic rhythm. My Blood Sense picked up more signatures ahead—five, maybe six. All smaller than the Hound.
Goblins. But not the same as the first floor.
These were larger. Their skin had a grayish tint, and crude armor made of bone and hide covered their chests. They carried proper weapons—iron swords, wooden shields, even a spear.
They saw us coming.
"Seo-yoon, take the left three. I'll take the right."
She didn't argue. Her sword flared with golden light as she charged.
I moved differently now than I had on the first floor. My body had adapted to the System's enhancements, and my skills had become second nature. Predator's Instinct let me read the goblins' movements before they made them. Weak Point Detection showed me exactly where to strike.
The first goblin raised its sword. I saw the weak point in its elbow, drove my left blade through the joint. The arm went limp. My right blade took its throat.
\[Goblin Warrior defeated.\]
\[Strength +3\]
The second tried to flank me. I spun, both swords crossing to block its attack, then slid inside its guard. My left blade found the gap between its ribs. My right blade severed its spine.
\[Agility +4\]
The third—the spear wielder—kept its distance, thrusting, retreating, thrusting again. I let it push me back, watching the pattern. Step forward. Thrust. Step back. Step forward. Thrust.
On the fourth thrust, I sidestepped instead of retreating. My left hand caught the spear shaft. My right blade took off the goblin's fingers. It screamed. I silenced it.
\[Vitality +3\]
I turned to check on Seo-yoon. She was finishing her third, her sword embedded in its chest. Blood dripped from a shallow cut on her cheek, but she was smiling.
"Four," she said.
"Three."
"I had three. You had three. That's four."
I looked at the pile of corpses. "The spear one counts as one. That makes three and three."
She laughed—a real laugh, bright and unexpected in the darkness of the tower. "You're impossible."
"So I've been told."
We looted the bodies quickly. Goblins on the second floor carried better materials—iron scraps that could be reforged, leather that was tougher than anything we'd found on the first floor, and cores that pulsed with a brighter light.
Min-jun would be happy.
---
The Guardian felt the deaths of his Hound and his warriors. The sensation was not pain, not exactly—more like a missing tooth, an absence that his mind kept probing.
He rose from his throne, his blade-arms scraping against the bone armrests.
"They're coming," he said to the darkness. "Good."
He had been human once. He remembered sunlight, laughter, a woman's face that the System had blurred beyond recognition. Those memories were fading now, replaced by the hunger that pulsed through him with every beat of the tower's heart.
But one thing remained: the desire to fight. To prove that even broken things could be strong.
He would give these intruders a fight they wouldn't forget.
---
The Guardian's chamber was different from the first floor's boss room. Where the hobgoblin had claimed a cave of bones and blood, this was a hall—long, vaulted, with pillars of fused bone rising to support a ceiling lost in darkness.
At the far end, a figure sat on a throne.
I stopped at the threshold. Seo-yoon stopped beside me.
"That's not a monster," she whispered.
She was right. The creature on the throne had the shape of a man—tall, lean, with features that might once have been handsome. But his skin was chitin, not flesh. His arms had been replaced by blades. And his eyes—
His eyes were orbs of amber light, fixed on us with an intensity that made my skin crawl.
\[FLOOR 2 GUARDIAN\]
Class: Blade Revenant (C-Rank)
Level: 25
Warning: This creature was once human. Defeating it will prevent further transformation of survivors captured by the tower.
Once human.
I thought of the boy whose body I now wore. Of the father who had disappeared investigating the System. Of all the people who had been taken, transformed, turned into weapons for this tower to use against us.
The Guardian rose from his throne. His blade-arms scraped against the floor, leaving furrows in the bone.
"You're different," he said. His voice was human—barely. There was a vibration beneath it, like two notes played at once. "The others who come here are afraid. You're not."
I raised my swords. "I've been afraid. It doesn't help."
He smiled. It was almost human, too. "No. It doesn't."
He moved.
---
The Blade Revenant had been designed for speed. His creators had stripped away everything that slowed a human fighter—hesitation, mercy, the instinct to protect anything beyond the self. What remained was pure combat instinct, honed over countless hours of hunting in the tower's depths.
When he attacked, he attacked to kill.
---
I barely got my swords up in time. His blade-arms came at me from two angles simultaneously—a combination that should have been impossible for a human body. My Predator's Instinct screamed warnings, and I moved on pure reflex, deflecting the first strike, dodging the second, feeling the wind of the third as it passed within an inch of my throat.
Seo-yoon was there, her sword catching the fourth strike. Golden light flared, pushing the Guardian back a step.
"That's four arms," she said through gritted teeth.
"I noticed."
The Guardian didn't give us time to recover. He came at us again, a whirlwind of blades that forced us apart. I found myself fighting alone, my swords moving in patterns I didn't know I knew, my body responding to threats before my mind could process them.
Blade Dance was keeping me alive. Barely.
But I couldn't attack. Every time I tried to find an opening, his arms moved to block, to counter, to drive me back. He was faster than me, stronger than me, and he'd been doing this longer than I'd been alive in either of my lives.
I needed an advantage.
My Weak Point Detection was active, highlighting joints, gaps in his chitin, the soft tissue beneath his jaw. But the joints moved too fast to target. The gaps closed before I could strike. The jaw was protected by a wall of steel.
I needed to slow him down.
"Seo-yoon!" I shouted. "Hit him with everything you've got!"
She hesitated. "What about you?"
"I'll be fine. Trust me."
She nodded. Her sword blazed with golden light, brighter than I'd ever seen it, and she launched herself at the Guardian like a comet.
He turned to meet her, all four blades rising to block—
And I moved.
Not toward him. Toward the pillars.
My Weak Point Detection had been showing me something since I'd entered the chamber. The pillars that held up the ceiling weren't just decoration. They were structural. And they had weak points.
My first blade sank into the base of the nearest pillar. The bone cracked. I pulled the blade out and struck again, at a different angle, following the fracture lines my skill was showing me.
The pillar groaned.
The Guardian heard it. He tried to disengage from Seo-yoon, but she pressed her attack, refusing to give him space.
I moved to the second pillar. Same pattern. Find the weak point. Strike. Follow the fracture.
The ceiling began to sag.
"Now!" I shouted.
Seo-yoon dropped back. The Guardian turned to face me, his blade-arms raised—
And the ceiling collapsed.
Bone and stone and something that might have been flesh came down in a cascade of debris. The Guardian tried to dodge, but the pillars fell in a chain reaction, the ceiling coming apart like a house of cards.
I saw his weak points one last time—the joints, frozen for a fraction of a second as he tried to avoid the falling debris.
I threw my left sword.
It buried itself in the gap between his shoulder blades, severing the connection between his blade-arms and his body. He screamed—a human sound, raw and pained—and then the debris buried him.
Silence.
---
The Guardian lay in the rubble, his body broken, his arms no longer responding. The boy stood over him, the second sword drawn, ready to finish the job.
"Do it," the Guardian said. His voice was human now, the vibration gone. "That's what we do here. Kill or be killed."
The boy didn't move.
"You were human once," he said.
"Once." The Guardian's eyes flickered, the amber light dimming. "Not anymore."
"Do you remember who you were?"
The Guardian laughed—a wet, broken sound. "Does it matter?"
The boy knelt. His sword rose.
"I'll remember," he said. "That's something."
The sword fell.
---
I stood over the Guardian's body, breathing hard. The notifications scrolled across my vision, but I barely saw them.
\[Floor 2 Guardian defeated. Experience gained.\]
\[Butcher skill activated. Processing…\]
\[Strength +20\]
\[Agility +18\]
\[Vitality +15\]
\[Magic +8\]
\[Skill acquired: Blade Mastery Lv.1\]
\[Skill acquired: Combat Precognition Lv.1\]
\[Unique material obtained: Guardian Core. Guardian Chitin (8).\]
\[FLOOR 2 CLEARED. PASSAGE TO FLOOR 3 UNLOCKED.\]
\[Reward: 2,000 System Credits. Bonus: Guardian's Blade (weapon material).\]
\[Warning: Floor 3 contains threats beyond current recommended level. Proceed with caution.\]
Seo-yoon came to stand beside me. She was looking at the Guardian's body, at the face that had once been human.
"He asked you to remember," she said quietly. "Will you?"
I looked at my hands. At the blood that wasn't mine. At the swords that had become extensions of my will.
"I'll remember all of them," I said. "Every one we kill. Every one who was human before the System took them. I'll remember, and I'll make sure whatever did this pays for it."
She was silent for a moment. Then she put a hand on my shoulder.
"You're not what I expected," she said.
"What did you expect?"
"A butcher."
I looked at the body at my feet. At the tower stretching above us, waiting. At the world that had been remade into a slaughterhouse.
"I am a butcher," I said. "But that doesn't mean I have to like what I cut."
I turned away from the body and walked toward the passage to the third floor. The darkness beyond pulsed with a light that might have been eyes, watching.
We weren't ready for it. Not yet.
But we would be.
---
The pigeon landed on the rubble of the Guardian's chamber, its bright eyes fixed on the boy as he walked away. Around it, the System was already processing the defeated Guardian, breaking down the body into motes of light.
"He showed mercy," the pigeon murmured. "At the end."
High above, in the space between worlds, the council of shadows stirred.
*ANOMALY PROGRESSION: FLOOR 2 CLEARED. GUARDIAN DEFEATED. EMOTIONAL RESPONSE: MERCY. CLASS EVOLUTION: ACCELERATED. *
The cold voice spoke again: "Mercy is weakness. It will be exploited."
The warmer voice replied: "Or it is strength in a form we do not recognize. Either way, he is exceeding all projections."
Silence. Then the cold voice: "Authorize limited intervention. Send an Observer. If he continues to exceed parameters…"
"Yes?"
"We will harvest him early."
The screen went dark.
The pigeon spread its wings and flew into the darkness of the tower, following the boy who was no longer just a butcher.
---
We emerged from the tower into a world that had changed while we were inside.
The sky was still bruised, still wrong. But now there were towers rising in the distance—not one, but three. More dungeons, more threats, more humans being ground through the System's machinery.
Kang Dae-ho was waiting for us at the entrance. His smile was wider than before, more genuine.
"I heard you cleared the second floor," he said. "That's impressive. No one else has even tried."
"We lost a lot of people to the towers," Seo-yoon said coldly. "You should be helping them, not waiting here for us."
He shrugged. "I'm helping. My people are pulling survivors out of the ruins, processing cores, building defenses. Someone has to do the practical work while you hero types do your thing."
I studied him. He was a mercenary, through and through—loyal to whoever paid, loyal to nothing else. But that made him predictable.
"The third floor is beyond us for now," I said. "We'll need to farm the second floor for a few days, build up levels, gather materials."
He nodded slowly. "And you want my people to handle the distribution? Process the materials, equip the survivors, that sort of thing?"
"I want you to take a cut and keep the rest for the faction. The Butcher's Block needs to grow."
His eyes gleamed. "What's your cut?"
"Twenty percent. For you and your people."
He considered. "Thirty."
"Twenty-five."
"Done." He extended a hand. I shook it.
Seo-yoon watched the exchange with narrowed eyes. When we walked away, she spoke in a low voice.
"You trust him?"
"I trust his greed. As long as we're the most profitable option, he'll stick with us." I looked at the new towers rising in the distance. "When something better comes along, he'll betray us. That's when we need to be strong enough to survive it."
She was quiet for a moment. Then: "You've thought about this a lot."
"I've had time." I looked at my hands again. They were steady. "Two lives, and I wasted the first one being a nobody. I'm not wasting this one."
We reached the Hub. Min-jun was waiting with the rest of the faction, his face lighting up when he saw the cores we'd brought.
"Guardian core," he breathed. "Do you know what we can do with this?"
I handed it to him. "Show me."
He grinned and ran toward the Hub crystal, the other members following. For the first time, I heard laughter among them.
Seo-yoon stood beside me, watching them.
"We're really doing this," she said. "Building something."
"Building a blade," I corrected. "Sharp enough to cut through anything."
She looked at me. "Even the System?"
I thought about the pigeon that had been watching us since the first day. About the "Larger Threats" the System had warned me about. About the cold presence I sometimes felt at the edge of my awareness, like eyes on the back of my neck.
"Especially the System," I said.
And somewhere in the darkness above, something heard.
---
End of Chapter 5