I Took A Succubus's First Time-Chapter 231: Monster

Chapter 231: Monster

The man lunged toward them with frightening speed, his body coiling and snapping like a beast unchained.

His hand shot out, fingers clawed wide as if trying to grasp something just barely within reach.

No. It was someone.

He was going for Hina.

It made sense.

Her powers were far more destructive than Kouhei’s, but her defenses were fragile.

She wasn’t built to endure close combat, and the bastard had figured that out instantly.

He was aiming to take her out first.

Kouhei didn’t hesitate.

Instinct screamed at him, and he threw himself in the man’s path like a shield, arms wide, feet grinding against the cracked concrete.

“Nghhh!?”

But the enemy didn’t stop.

He doubled down, using the full momentum of his charge, slamming into Kouhei like a wrecking ball with a roar of raw aggression.

The sheer force of the collision sent Kouhei flying back, his muscles straining, the air crushed out of his lungs.

“Get out of my fucking way!” the man snarled, voice distorted by fury.

Kouhei was tossed aside like a broken doll, skidding across the ground, leaving a smear of blood in his trail.

But he wasn’t done yet.

His vision spun, chest aching, but he forced his body upright and surged forward again.

Gritting his teeth against the pain, he dashed with renewed desperation. The man was about to reach Hina. He couldn’t allow that.

Kouhei cut in between them, blade gleaming as he slashed with everything he had, shearing off two of the enemy’s arms in one clean sweep.

The limbs dropped to the ground, twitching.

But not even a second later, flesh pulsed, bones snapped, and the arms regrew right before his eyes. It was completely untouched, as if they had never been severed.

Kouhei’s eyes widened.

He slashed again—faster this time and with more precision—but it was the same. Over and over, he hacked away at the regenerating body, but every strike was meaningless.

The wounds healed before they could even bleed.

His breathing grew heavier, his grip on the sword tight enough to turn his knuckles white.

No matter how fast he was, no matter how many times he attacked—it didn’t matter. The bastard wouldn’t fall.

It was hopeless.

This wasn’t a battle of strength or stamina anymore.

This was survival against something unnatural. Something that refused to die.

How the hell do you kill something that recovers faster than you can cut?

“I told you!” the man shouted, clearly enraged by Kouhei’s persistence. “That’s not going to work! It will never work! You’re just wasting your fucking breath!”

“Raaggghhhhhhhh!!!”

Kouhei let out a yell and slashed again, but this time, the blade didn’t make it all the way through.

It stopped. It got stuck deep in the man’s flesh.

Before Kouhei could even react, the muscles clamped down around the embedded sword like a vice, locking it in place.

The limb began to mend around it, sealing the steel inside.

Kouhei’s eyes widened in horror.

He tried to yank the sword free, but it was too late.

The man’s other arm cocked back, then shot forward with brutal speed, smashing straight into Kouhei’s chest.

Everything blurred.

Time slowed down.

The air whooshed from his lungs.

His thoughts shattered like glass as he was hurled backward from the devastating blow, the force sending shockwaves through his entire body.

His back hit the ground with a sickening crunch.

The world around him dimmed.

Pain flared in every nerve, his body screaming from the inside out.

If it weren’t for the enhanced durability he got from his bond with Nagisa, that punch would’ve turned his chest into pulp.

He coughed up blood, hacking violently as he forced himself to rise again, staggering like a drunk, but his eyes still burned with defiance.

The enemy scowled in disgust, glancing at the sword stuck in his arm.

“Fucking worthless trash…” he muttered, slicing off the arm with a flick of his hand and regrowing a new one in less than a second. “You think you can fuck with me? Like I’m someone you can actually beat?”

Before Kouhei could steady himself, another black sphere flew from Hina’s direction.

But the man didn’t even flinch.

With a swift motion, he shattered the attack midair and swatted the remnants away like they were nothing more than a buzzing gnat.

“Insect,” he growled.

Then he turned and bolted for Hina again, his fury boiling over.

Kouhei forced himself up once more, every muscle howling in protest.

He pushed forward, summoning all his strength, and caught the man’s punch mid-air with his bare palm.

The impact sent a sharp crack through the air.

“Hnghhhhghhhh!?”

Kouhei’s scream tore from his throat as the bones in his arm shattered on contact.

The pain was instant and merciless, and it was shooting up to his shoulder like molten fire. He felt the joints pop and the flesh tear. His entire arm was wrecked.

“What the fuck is your problem!?” the man shouted in rage. “You’re seriously starting to piss me off!”

He slapped Kouhei aside with brutal force.

Kouhei hit the ground hard again, the world spinning in a storm of pain. Before he could move, the man grabbed him by the hair and yanked him up like a ragdoll.

From the side, Hina hurled another black orb with everything she had.

But just like before, it barely made the man flinch.

Her magic, as powerful as it was, wasn’t enough.

His body regenerated too quickly.

It was so fast that even her strongest spell didn’t leave a scratch.

“Ghhh! You two just love putting your entire fucking weight on me, don’t you?” the man growled, seething with rage. “I’m gonna mess both of you up—bad. I’ll make damn sure of that.”

His eyes blazed with fury, glowing like coals, veins bulging under his skin as if he were seconds away from exploding.

Kouhei’s eyes darted around—and in that brief moment, he spotted an opening. A small gap in the enemy’s stance. Just enough.

Now or never.

“Hina-san!”

He shouted with all the strength he had left.

She didn’t hesitate. She immediately bolted toward him, and the two of them sprinted away from the enemy without looking back.

Kouhei grabbed her tightly and triggered a long dash, moving faster than any normal person could react, the wind howling past their ears.

“You think you can just run after what you did to my fucking suit!?” the man screamed behind them, his voice a storm of hatred. “I’m going to kill both of you! Dead!”

Kouhei’s breath hitched.

His instincts screamed louder than ever. His skin prickled with his very hair on his body standing on end.

They needed a plan.

Fast.

“Hina-san! Let’s go into the building for now!”

Without waiting for a response, he led her straight toward the school, kicking the door open and rushing inside.

Once they were in, Kouhei dropped to his knees, pulling out a small device. He slammed it into the ground and started the setup with trembling hands.

Magic circuitry spread across the floor like a spiderweb, glowing orange.

A low hum filled the air.

Then—boom—a shimmering barrier erupted around the entire building, sealing them inside.

For now… they had a moment to breathe.

But the monster was still outside.

And it wasn’t going to wait.

They needed a plan—

…and they needed it now.

Their breaths came in short, ragged bursts, hearts pounding like war drums in their chests as the barrier shimmered faintly around them.

“W-What’s happening…? Why… How… I mean… Okumura-kun…”

Hiyori’s voice trembled.

She had been there the whole time.

She was watching. Frozen, even.

Her mind struggling to keep up with what her eyes had just witnessed.

Her lips parted, trying to form a coherent sentence, but the words fumbled and fell apart before they could leave her mouth.

“What’s happening, really…?”

Kouhei turned toward her, his expression grim.

“I have no time to explain right now, Ichinose-san,” he said quickly. “Right now, our very lives might be in serious danger.”

Hiyori’s eyes widened in horror.

His tone wasn’t just serious. It was absolute.

Outside the shimmering barrier, the man’s voice thundered once again.

“Come the fuck out and fight! I’ll make sure both of you pay for the damage you’ve caused me!”

But strangely, he wasn’t attacking the barrier.

He was just… standing there.

Waiting.

Like a predator playing with its prey, savoring the anticipation before the feast.

Kouhei narrowed his eyes, his body still tense as he tried to decipher the enemy’s intentions.

“It seems like… for now, we’re safe in here,” he muttered.

Hina stood beside him, arms crossed, brows drawn together in deep thought.

“I don’t think I’ve ever come across someone like that,” she said. “He could heal instantly… like it never even happened.”

She wasn’t exaggerating. His regeneration wasn’t just fast—it was unnatural. Inhuman.

And that was exactly why they had a huge problem on their hands.

How do you kill something that refuses to stay dead?

No matter how many times Kouhei slashed or how powerful Hina’s spells were, it didn’t matter. The moment they landed a hit, the man’s body would piece itself back together—flesh, bone, and muscle—restored within seconds.

He was practically immortal.

Indestructible.

And the fear of that truth pressed down on them like a lead blanket.

But then… an idea sparked in Kouhei’s mind.

A flicker of a possibility.

Earlier, when Hina’s spell hit his hand… there was a moment, brief but clear, where the limb was completely gone. It hadn’t just been wounded or burned.

It had been erased. Turned to ash.

What if… that was the key?

What if they didn’t need to just wound him—but obliterate him?

If every cell in his body was incinerated—completely deleted—would he still be able to regenerate?

Could something come back from nothing?

The thought clung to his mind, growing louder with each passing second.

There might still be a way.

But pulling it off… was going to be hell.