The guardian screamed again.
The sound ripped through the chamber like tearing metal, violent enough to shake dust loose from the fractured ceiling above. Ancient pillars trembled. Cracks spread across the floor in branching lines as the creature hurled itself forward once more, black claws carving through the air toward Kai's throat.
Kai stared at it calmly.
Then stepped aside.
Barely.
The claws missed him by inches, enough force behind them to split the stone wall apart behind him in an explosion of rubble.
But Kai wasn't watching the damage anymore. His eyes were elsewhere— The walls, the symbols, the flow.
He flipped backward as the guardian twisted unnaturally fast, another claw sweeping low toward his legs. Kai planted one hand against the ground, body rotating smoothly over the strike before driving his heel downward into the creature's skull.
CRACK.
The impact folded the guardian slightly. Kai used the momentum to launch himself away again instead of pressing the attack.
His boots skidded across broken stone as he landed in a crouch several meters away, breathing steady—but only through sheer control. His ribs burned. Every deep inhale reminded him exactly how hard the earlier collisions had been.
Body strengthening had pushed his muscles too far already. He could still use reinforcement in bursts, but another prolonged activation would probably start tearing things internally.
Annoying.
The guardian lunged again.
Kai ducked beneath the swipe, shadows curling around his arms as his wrappings shot forward and coiled tightly around the creature's legs. He pulled sharply.
The guardian crashed face-first into the ground.
Before it could rise, Kai twisted his body and swung it violently sideways into one of the nearby pillars.
BOOM.
Ancient stone shattered outward. The creature screeched.
Kai yanked again. Another slam. Another explosion of debris.
Then he released the wraps entirely and hurled the guardian across the chamber hard enough to crater the far wall.
He exhaled slowly.
"...Yeah," he muttered, wiping blood from the corner of his mouth. "Definitely not killing you the normal way."
The creature was already rising again. Black flesh stitched itself together. Cracks sealed. Bones reformed.
And now Kai understood why.
His eyes drifted across the chamber once more etching every symbol in his mind. The runes. They were everywhere. Not just decoration. Not isolated symbols. A network.
An entire system embedded into the ruins themselves.
The walls carried ethernano. The floor redirected it. The pillars stabilized it. And somewhere deeper below— The core.
Kai's eyes narrowed slightly.
"...Artificial nervous system," he muttered.
The realization settled heavily in his mind.
The ruins weren't simply draining magic randomly.
They were functioning like a body. Ethernano was absorbed, refined, then distributed through the rune network toward whatever the system deemed most important.
Right now ? That priority was the guardian.
Which explained everything. Why external magic weakened. Why the creature regenerated endlessly. Why damaged walls repaired slower while the guardian restored almost instantly.
The system was allocating resources. Prioritizing survival.
Kai clicked his tongue softly. "I really should've noticed faster."
The guardian roared and charged again.
Kai sidestepped smoothly.
At first, he'd fought directly because he hadn't had a choice. They needed time. Needed escape. Needed information.
But continuing now? Pointless.
If he kept trying to overpower the regeneration, the ruins would simply keep feeding the guardian until everyone trapped inside was drained dry. A battle of attrition. One that ended with mutual death.
Not ideal.
The creature swung again. Kai slid low beneath the attack, boots scraping against the stone as he moved between its legs. His wraps lashed outward instantly around both ankles.
He pulled.
The guardian lost balance.
CRASH.
Its massive body slammed flat against the floor.
Kai twisted sharply and dragged the creature across the chamber before whipping it violently into another wall hard enough to partially collapse it.
Dust exploded outward.
Kai jumped backward again immediately, eyes moving rapidly across the chamber. Searching.There had to be another route. A maintenance path. Access corridor. Something leading deeper toward the core.
But the chamber was ancient and fractured. Half the original structure had collapsed centuries ago. And the guardian wasn't exactly giving him the courtesy of uninterrupted exploration.
The creature tore itself free from the rubble with another shriek.
Kai exhaled tiredly through his nose."...You're really starting to piss me off, dark chocolate."
The guardian lunged.
Then—
"KAI—!"
His eyes widened slightly. The shout echoed from the far side of the chamber.
Kai turned sharply. And froze for half a second.
Cana stood near the broken entrance tunnel, chest rising unevenly from exertion. Dust covered her clothes. Her hair was disheveled. Pixie clung awkwardly to the top of her head, tiny mechanical limbs digging into her hair for stability.
And despite the fear visible in her eyes—she had come back.
Kai stared at her in disbelief. Then immediately muttered under his breath. "...Why did i expect logical and reasonable decision from her ?."
The guardian turned toward the new voice instantly. Its hollow face twisted. Screeching.
Kai vanished into shadow immediately.
The creature lunged toward Cana—and Kai reappeared mid-intercept, driving a reinforced kick directly into its side hard enough to throw it sideways through a pillar.
"WHAT ARE YOU DOING HERE?!" he shouted.
Stone exploded around the guardian as it crashed through the ruins.
Cana flinched slightly at the sheer force behind his voice—but didn't run.
"YOU TOLD ME I'M STRONG!" she shouted back.
Kai's eye twitched."...THAT DOESN'T MEAN RUN TOWARD THE GIANT NIGHTMARE MONSTER!"
The guardian surged from the rubble again. Kai's wraps snapped around its arm, redirecting the claw strike away from Cana by inches before he twisted and slammed his elbow into the creature's chest.
"LEAVE!" he barked.
But Cana barely heard him anymore. Her eyes remained fixed on the battle itself. On the regeneration.
Kai shattered its arm— and it reformed instantly again, again and again.
Not healing. Restoration.
Then— Something shifted inside her mind.
Her fingers tightened around the card in her hand.
I don't need to destroy the creature.
The card trembled faintly.
I need to stop the thing allowing it to regenerate.
A pulse of ethernano flickered across the surface. The symbol etched onto the card —vanished.
Cana's eyes widened.
The card became completely blank.No stored spell. No assigned effect. Just empty white space.
And somehow— that felt far more terrifying.
"I HAVE A PLAN!". Cana finally shouted.
That made kai pause. Briefly.
The guardian slammed into him before he could fully evade.
Kai crossed his arms just in time.
BOOM.
The impact launched him backward across the chamber. His boots tore trenches through the floor before he finally stopped himself against a broken pillar.
Pain flared through his ribs instantly. "...Ow."
The guardian charged again.
Kai vanished into shadows.
Then reappeared above it. He drove both feet downward into its spine hard enough to force the creature into the ground.
The chamber shook violently.
Still— It kept moving. Regenerating. Endless.
Kai landed beside the crater and looked toward Cana again. She hadn't moved. But now he noticed something strange.
The card in her hand. Blank. No symbol. No stored spell marking. Nothing. Just white emptiness.
Yet the ethernano radiating from it felt...
Wrong, unstable. Not in the sense of losing control— but undefined.
Kai's expression shifted slightly. Cana herself looked shaken by it.Scared even. But she held onto it anyway.
"I don't need explosion magic!" she shouted, voice trembling but firm. "I need to stop its regeneration, i need to override it's connection with the ruins!"
The guardian lunged again. Kai caught its arm with both wraps and redirected the strike into the wall beside him. The impact shattered stone.
He looked back at her sharply."...What are you trying to do?"
Cana stared at the blank card in her hand, her breathing uneven. "I don't know completely," she admitted. Honest , Raw.
"But I think..." she swallowed, "...I think my magic is asking me what I want the outcome to be."
The guardian roared. Kai twisted sideways, narrowly avoiding its jaws.
Intresting timing for philosophical breakthroughs.
Still— His eyes flicked toward the blank card again.
Then widened slightly.
No predefined structure. No assigned effect. Not stored magic. Potential. Pure interpretative construction.
The creature swung again. Kai ducked low beneath the attack and drove a kick into its knee to destabilize it before looking back toward Cana.
"...You really picked now to evolve?"
Cana glared. "I'M TRYING!"
The blank card flickered violently in her hand.
The chamber lights dimmed slightly. Even the runes around the walls seemed to react.
Kai noticed that immediately.
And suddenly—his smirk returned. Slowly.
"...Oh," he muttered.
The guardian wasn't the only thing connected to the system. Cana's magic was interfering with it. Not through force. Through definition. Override.
The creature charged again.Kai inhaled slowly. Then looked directly at Cana.
"Alright then," he said calmly. A sharp grin appeared despite the blood running down the side of his face. "Let me see what happens when you stop following the rules."