Hero Hack: Reversing Heroes and Raising Harem-Chapter 221: Oops, All Mutants

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Chapter 221: Oops, All Mutants

Blazren sat alone in the AA-Rank lounge, a data slate glowing in his hands.

Most of the other top-ranked heroes were out on patrols or missions.

But he stayed behind, reading page after page on the Beastkin Brood.

Class experiments. Failed subjects. Confirmed sightings.

The patterns were scattered, but something didn’t feel right.

It was too quiet. No recent attacks. No movements. Just silence.

But then, the comm on his wrist buzzed.

Neuro.

Blazren tapped it. "Yeah?"

"Come to my lab," Neuro’s voice came through. Flat, fast, and precise.

"Now. It’s urgent."

Blazren frowned. "What’s going on?"

"I’ll show you when you get here. Bring no one."

The signal cut.

Blazren stood up and slipped the data slate into his coat.

His brow furrowed deeper as he headed out of the lounge. freēnovelkiss.com

When he reached the lab’s outer door, Skybrand was already there.

She stood straight, her arms behind her back.

"Where’s Neuro?" Blazren asked.

Skybrand didn’t answer right away. She simply turned. "Follow me."

Blazren said nothing and followed.

They passed several sealed checkpoints, deeper into the restricted area.

Doors opened only to Skybrand’s ID. The lighting dimmed. The air was colder.

Finally, they reached a chamber at the end of the hallway.

Neuro stood inside, hands behind his back, waiting beside a wall of consoles.

Blazren stopped at the threshold.

His eyes landed on five people, all strapped tightly to reinforced metal chairs.

Their wrists, ankles, and even heads were restrained.

He frowned. "What is this?"

Neuro turned to him. "Don’t worry. They’re all villains."

"Death-row cases. Serial killers. War criminals. The worst types."

Blazren narrowed his eyes.

"Still. You could’ve told me what I was walking into."

Neuro walked over to the console and tapped several keys.

"I needed you to see this for yourself. Words don’t work with you."

Without another word, he pressed the injection command.

Five syringes dropped from mechanical arms above the chairs, stabbing into each subject’s neck.

The fluid inside was thick and dark green.

The reaction was immediate.

The subjects screamed.

Their bodies convulsed. Muscles bulged unnaturally. Skin stretched.

Bones snapped and reshaped. Fur burst through their flesh.

In seconds, all five turned into monstrous, half-human, half-beast forms.

[Feral Beastkin].

"Skybrand," Neuro said.

Skybrand’s wings flared out.

She blinked into the air, vanishing in a gust of wind.

One by one, she executed all five.

[Skyline Execution]. Blink. Slash. Kill. Repeat.

Each beast dropped before they could even rise from their seats.

Blazren stepped forward, glaring. "What’s the meaning of this?"

Neuro turned from the console. "What you saw... was a test."

Blazren’s eyes didn’t move from the corpses. "Those were [Feral Beastkin]."

Neuro nodded. "Yes. The serum worked. Again. That makes it 100% stable so far."

He walked to a secondary table and lifted a blood-stained vial.

"I duplicated the serum. The one from the mutated villain a few days ago?"

"I pulled this from his blood. Refined it. Recreated it."

He looked at Blazren.

"You understand what that means."

Blazren’s fists tightened. "They’ve perfected it."

"Yes," Neuro said.

"Even if it only grants [Feral Beastkin]... it’s still a class."

"A transformation. If they mass-produce it..."

"Chaos," Blazren said quietly.

"Villains gaining classes from a shot. No trials. No awakening. No restrictions."

Neuro nodded. "A low-tier class."

"But enough to cause massive damage in urban zones."

"Untrained users go berserk. Civilians won’t stand a chance."

Blazren turned to face him fully, arms tense, eyes sharp.

"So you called me here... what for? You already tested it."

"You proved the serum works. What’s your plan?"

Neuro didn’t answer right away.

He just stared at Blazren for a few seconds, expression unreadable.

Then he smirked. "I don’t waste time."

He reached toward the console and tapped in a rapid sequence of commands.

A low click echoed through the lab.

Part of the far wall hissed and shifted, opening to reveal a narrow hallway dimly lit by red lines along the floor.

Blazren’s eyes narrowed. "What’s this?"

Neuro stepped toward the entrance without looking back.

"I found something strange while breaking down the serum."

"It wasn’t just beast blood... something else was mixed in. Something old."

He stopped at the threshold.

"I couldn’t trace it with regular scans."

"But whatever it is—it wasn’t made by the Beastkin Brood alone."

Blazren remained silent, the tension in his stance rising.

Neuro glanced back.

"If you want to know what we’re really up against..."

He walked inside.

"...then step in."

Blazren took one last look at the shut doors behind him.

Then he entered the chamber.

---

Drask pushed the lab door open, his clawed hand leaving faint marks on the steel frame.

The room was filled with the low hum of machines and the soft growls of caged beasts.

His yellow eyes scanned the area, then locked onto the figure standing near the central console.

"Doc," Drask said, stepping forward.

"Have you perfected the serum yet?"

Syvarn didn’t look up from his monitor.

"Not exactly perfected," he said, typing quickly.

"But it works. Every time."

"Thanks to the sample you brought from the old territory."

He finally turned around and gestured toward the left side of the lab.

"But the results... are those."

Several containment cages lined the wall.

Inside, half-human, half-beast figures twitched and snarled.

Their claws scraped the bars. Their eyes glowed with blind fury.

All of them pulsed with unstable aura.

Drask walked toward the cages, watching them closely.

"[Feral Beastkin]," he muttered.

Syvarn nodded. "I’ve made more of the serum. Five confirmed transformations."

"No deaths. Full class awakening each time. But..."

He paused, turning back to his screen.

"I still haven’t managed to evolve it. I can’t raise the tier."

"The class always ends as [Feral Beastkin]. No control, no variation."

Drask grinned. "Doesn’t matter. We don’t need control right now."

He turned from the cages and faced Syvarn.

"With this, we finally hit back. The Hero Association won’t know what hit them."

He clenched his fist.

"Even if it’s the weakest class—it’s still a class."

He looked over his shoulder at one of the snarling beasts.

"And a berserk A-Rank fighter can still rip a hole through any patrol group."

Syvarn nodded slowly. "True. Especially if we send them at once."

Drask stepped closer.

"Prepare to release them. Pick a sector that’s lightly guarded."

Syvarn tapped a few keys. "I’ll ready the transport. They’ll move at sundown."

Drask’s grin widened. "Good. Let’s start the chaos."

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