My SSS-Rank Innate skill: Infinite Adaptation core

He kept cutting through the beasts, now guided by instinct and skill combined. Blood sprayed across his face, warm and sticky, staining his vision but he didn’t stop.

He couldn’t stop.

[You have killed a Level 1 Lesser Wolfang.]

[You have killed a Level 2 lesser Wolfang.]

[You have killed a Level 2 Lesser Wolfang.]

[+EXP Earned.]

[You leveled up.]

Although his strength was growing and his movements were becoming sharper, the same couldn’t be said for Rieka. She was stronger than him, but her mana reserves were not limitless. Her attacks began to slow, her breathing growing heavier with each passing moment.

Ding!

[Your skill Pain Resistance has reached its threshold. Level 10 achieved. Rank E → D.]

[Your skill Lightning Steps has reached its threshold. Level 10 achieved. Rank C → B.]

But none of it seemed to matter , they kept coming , Dozens.

Hundreds.

Thousands.

The corpses began piling up around them, and Rieka was no longer in good condition. The ground beneath their feet turned slick with blood and crushed flesh, making every step unstable. Severed body parts clung to Nova’s boots as he moved.

While slaughtering the beasts, Nova noticed something strange. After dying, some of them dropped items basic weapons, pieces of armor but they looked weak, insignificant. He didn’t have the time to inspect or collect anything as more of the creatures rushed at him from every direction. Nova kept moving , he had to.

If the space around him became too cluttered with corpses, it would restrict his movement and that would mean death.

More importantly Rieka wouldn’t survive like this.

Realizing that, he began pushing forward, intercepting waves of beasts before they could reach her. Using his movement technique, he carved a path through the swarm, creating space for her to breathe.

He kept advancing into the endless tide of silver creatures, moving farther away from the walls. And with each kill he became more efficient.

Nova was already panting, his arms screaming from the strain. His body trembled not just from exhaustion, but from the countless injuries covering him. He was completely drenched in blood.

This was the first time he had ever killed anything. But there was no time to process it. Another wave of lesser wolfangs came.

Nova screamed not in fear, but in pure, blood-boiling rage. He looked like something out of a nightmare, fury drowning out all reason as he drove his sword through a beast’s neck, watching it gurgle and twitch before ripping the blade free. Another lunged from the side, and he barely ducked in time, rolling across the blood-soaked ground.

Rieka had fallen to her knees.

Her body was covered in wounds, her once pristine face now stained red with blood. Her breathing was weak, uneven.

”N... Nova... it seems like... I won’t be able to continue...” Her voice faded.

She collapsed.

In her final conscious moments, a thought crossed her mind. Maybe she had only been holding him back. She had seen it his strength rising, surpassing even hers. He had been protecting her, not letting many beast reach her.

Maybe dying here was better. ’Let’s meet in the next life...It was nice knowing you...’

And then darkness, Nova froze for a split second.

His heart clenched violently. It’s because of me. She was trapped in this hell because of him. His grip tightened around his sword as something inside him snapped.

”No matter what happens...” His voice trembled, yet carried absolute resolve.

”I won’t let you die here. That... I promise you, Rieka.” She didn’t respond. She couldn’t.

”COME, YOU FILTHY FUCKS! COME ON!”

Nova rose, his body covered in gore. A wolf’s intestine clung to his leg as he kicked forward, crushing a beast’s skull against the wall. Bone fragments shattered outward.

His knuckles turned white around the sword hilt.

He didn’t let a single beast pass him.

He moved like a storm no, like a wall. A living barrier of blood and steel, tearing apart anything that came close, making sure nothing reached Rieka.

Ding!

[You have learned a skill: Sharp Senses.]

[Rank: C]

His perception sharpened instantly. Movements became clearer, the flow of attacks easier to read. He could feel the beasts around him, allowing him to dodge strikes that would have otherwise hit.

Still—

they kept coming.

Nova activated his skills continuously, pushing his body beyond its limits. Yet his mana had only decreased slightly.

His only path to survival was forward. To kill. To grow stronger with every strike. Because if the next wave came stronger than this one , he knew one thing for certain. He wouldn’t survive it like this.

”GRRRRR—!”

A larger wolfang lunged toward him. Nova’s eyes narrowed instantly. He knew that if those jaws clamped down on him, it wouldn’t just hurt it would cripple him.

Without hesitation, he grabbed a handful of spilled organs from the ground and hurled them straight into the beast’s eyes. At the same time, he shoved a weaker wolfang into its path.

The larger beast, blinded and enraged, tore through the smaller ones in a frenzy, its claws ripping bodies apart as it roared wildly.

Nova didn’t waste that opening. With everything he had left, he lunged forward and drove his sword into its eye socket. The blade sank deep. But in that moment of focus he missed something. Another wolfang slipped past him. Heading straight for Rieka.

Nova’s body moved on instinct. He threw himself in its path, intercepting it just in time. Its claws tore across his back.

A deep gash split open, blood spilling out instantly.

”Ahhh—!”

A strained groan escaped his lips as he forced himself backward, jumping away from the follow-up attack. Even with Pain Resistance, the damage was real. The exhaustion, the injuries, they were catching up to him.

His body was slowing down.

[You have killed a Level 4 Lesser Wolfang.]

[You have killed a Level 6 lesser Wolfang.]

[+EXP Earned.]

[You have leveled up!]

[You have leveled up!]

[All Stats Increased by 2.]

[You have gained 2 Stat Points.]

...

But even as the system messages appeared , the battle didn’t stop.Time lost its meaning.One hour passed then another then another Nova no longer kept track.

His legs burned with every step, his arms screamed with every swing, yet the Wolfangs didn’t stop. If anything, their numbers only increased, pouring in endlessly as if the dungeon itself was feeding them into the battlefield.

Hours of mindless killing had passed.

With every system message that flashed before his eyes, Nova felt his strength and speed rising, pushing his body beyond what it should have been capable of. Even as his condition worsened, even as exhaustion dragged at him, he kept going.

He didn’t let a single beast reach Rieka.

Not one.

Instead, he pushed forward, forcing the tide of monsters deeper into the dungeon, increasing the distance between them and her unconscious body.

He became something else entirely. A machine of slaughter. And then another message appeared.

[You have leveled up multiple times.]

[Your skills have leveled up.]

[Sword Might has evolved: Rank C → B ]

[Pain Resistance has evolved: Rank D → C]

Nova didn’t react. He couldn’t. At this point

he was no longer thinking. Only moving only killing .

”GRRR—!”

Suddenly, all his senses flared as a sharp pain tore through his side. A beast bit him . Nova roared in pain, his body reacting on instinct as he ripped its limbs apart and sliced its face open in one brutal motion. He dropped to one knee, clutching the wound, yet even then his sword didn’t stop.

He swung again, cutting through another beast that lunged toward him. Blood soaked his entire body some of it his own, but most of it belonged to the silver fangs surrounding him.

The endless horde didn’t wait. They never did. Rieka was still unconscious behind him, completely defenseless. Nova forced himself to move, jumping behind a mound of corpses and using it as a temporary barrier. It gave him only a brief moment, but that moment was enough.

A notification flashed in front of him.

[You have acquired active skill: Appraisal ]

Nova didn’t hesitate. He activated it instantly. His vision sharpened as he scanned the scattered items among the corpses. Weapons and armor appeared worthless, but then he spotted something different a C-rank healing potion.

Without wasting a second, he used his movement technique. Lightning surged beneath his feet as he dashed forward, grabbed the potion, and returned just as quickly. His hands trembled as he opened it and drank.

Warm energy spread through his body almost instantly. His wounds closed, the bleeding stopped, and the deep ache in his muscles faded. Even the exhaustion weighing him down eased. He was still breathing heavily, but he felt alive again ready to continue. He carefully kept half of the potion aside for Rieka.

Then he stood up.

And stepped forward.

Nova swung his sword again. This time, there was no grace in his movements only raw intent. Yet it wasn’t sloppy. Not anymore. With every kill, his strikes became sharper, more efficient, more deadly.

It was his first time using a sword, yet his movements already resembled someone with months, even years, of experience.

Guts spilled across the ground as he advanced. Blood pooled beneath his feet, forming a crimson path wherever he stepped. Corpses lay scattered everywhere, torn into pieces, the air thick with the stench of death.

The dungeon floor itself felt alive with bloodlust.

And Nova kept moving forward.

He kept killing without stopping. Now that his strength had returned and grown by leaps and bounds he butchered the beasts with ease, creatures that had once been difficult for him to handle.

Time had completely lost meaning inside the dungeon. More than a day of slaughter had passed. Nova could feel it now the hunger, The thirst.

His body ached all over in a way even the healing potion couldn’t fix. It wasn’t just wounds anymore it was fatigue sinking deep into his bones. His muscles felt heavy, his movements slower than before.

On top of that, exhaustion crept into his mind. His thoughts dulled, and his eyelids grew heavy, threatening to close at any moment.

Yet he kept moving , he kept killing.

[You have killed a Level 3 Lesser wolfang.]

[You have killed a Level 1 Lesser wolfang.]

[You have killed a Level 8 Lesser Wolfang.]

Thanks for reading.....