Hero Hack: Reversing Heroes and Raising Harem
Chapter 219: Definitely Not FDA Approved

Chapter 219: Definitely Not FDA Approved

Neuro stood in front of the scanner, arms folded, visor glowing with shifting data.

The mysterious serum spun slowly inside a containment tube, suspended by a magnetic field.

Blazren stood nearby, watching quietly.

"Neuro," Blazren said. "What did you find?"

Neuro didn’t answer right away.

He adjusted the controls, then looked at the screen.

His brows furrowed slightly.

"This serum..." he said. "I don’t know what it does."

Blazren took a step closer. "Nothing?"

Neuro shook his head. "All ingredients are unknown materials."

"Every compound is marked with unknown data points."

"The system reads them as ’???’. That’s not normal."

Blazren frowned.

"Then this is definitely theirs. Beastkin Brood or someone tied to them."

"Maybe," Neuro said.

"But we can’t confirm without results. I need to see what it does."

Blazren stared at the serum. The liquid inside pulsed softly, like it was alive.

Neuro tapped the intercom. "Skybrand. Bring in the subject."

A moment later, the door opened.

Skybrand walked in, straight posture, her face unreadable.

Behind her, two guards dragged in a restrained man—shackled, scarred, and silent.

Blazren stepped forward. "Who is he?"

Skybrand answered.

"B-Zone villain. Murdered thirty-two civilians."

"Sentenced to death two months ago. Execution set for next week."

Blazren looked at the man. Then turned to Neuro.

"This is how you’re testing it?"

Neuro nodded. "We don’t have test dummies that can process class-tier reactions. Only real bodies work."

Blazren’s eyes narrowed. "Still. He’s human. We’re heroes. We don’t experiment on people."

Neuro stepped toward him. "He’s not just a person. He’s a condemned killer."

"One way or another, he dies. I’d rather use his end to learn something that might save others."

Blazren didn’t back away. "It’s still wrong."

Neuro held his stare. "We’re heroes. And heroes protect people."

"If understanding this serum lets me stop the next Scavratt before he evolves, then I’ll take the burden."

Skybrand stood silently between them, hands behind her back.

She watched both men without interrupting.

Blazren finally looked away. He didn’t like it. But he didn’t stop it.

Neuro turned to the guards. "Strap him to the table. Inject when ready."

The guards moved the man. The villain struggled once, but the restraints held.

Skybrand placed the injection unit beside Neuro.

Blazren crossed his arms. "If something goes wrong—"

"I’ll kill him myself," Neuro said.

Blazren didn’t respond.

The test was about to begin. And whatever happened next, it would change the balance again.

---

Syvarn stood in his lab, eyes fixed on the man tied to the metal chair.

The room was dim, lit only by flickering data panels and soft-glowing tubes.

The man in front of him—mid-thirties, thin, covered in scars—was unconscious, head slumped forward.

He was a known criminal but had never awakened a class.

Useless by most standards. Perfect for testing.

Syvarn turned toward the nearby terminal.

His fingers moved quickly across the screen, bringing up the scanned details of the mysterious serum.

Every compound came up as unknown.

No origin. No markers. Just red warnings and lines of question marks.

He muttered under his breath.

"No known ingredients. No structure. No data match."

He turned back to the table. The vial was ready.

A dull green liquid shimmered inside. He held it in his hand for a moment.

"This shouldn’t work. But let’s see."

He stepped forward, grabbed the injector, and stabbed it into the man’s neck.

The man twitched once. Then again. A few seconds passed.

Then the screaming started.

The man’s eyes flew open. He convulsed violently.

His arms strained against the restraints. Muscles bulged unnaturally.

Veins darkened. His breathing turned into growls.

Syvarn stepped back. His eyes narrowed. "Already reacting. That fast?"

The man threw his head back and roared.

His nails stretched into claw-like tips. His eyes turned beast-like.

He thrashed, foaming at the mouth. Something shifted in his skin.

It was like his bones were trying to twist into another shape, but couldn’t fully break through.

Syvarn stared.

"This aura... I know it," he said. "That’s class aura."

He reached for a reader on the desk and pointed it toward the man.

The scanner beeped rapidly.

"One signal confirmed. Classification... Beast-Aligned. Feral Beastkin."

He blinked. "No way."

He looked at the man again.

The subject was snarling, eyes wild, locked in a mindless rage.

"That’s a class. He had nothing—and now he has a class."

The machine beeped again. "Tier: Low. Alignment: Instinct. Status: Berserk."

Syvarn stood still for a long moment.

"...Goddamn it," he said. "What the hell is this serum?"

He looked at the vial casing still in his hand.

"It gave a class. Instantly. From nothing. No conditions. Just raw injection."

He stared at the subject again. The restraints were starting to bend.

The man—or beast—was still trying to break free.

"Am I lucky?" Syvarn said. "Is this just a freak reaction?"

He turned back to the console, typing rapidly. The data was incomplete.

He couldn’t recreate it yet. Not without risking failure.

But his eyes were focused now. His breath steadied.

"If this isn’t luck... then this could complete my research."

He smirked.

"With this... I’ll perfect the serum."

The beast then roared and lunged forward, snapping one of the metal bands.

Its left arm tore free. Its body was shaking, but it moved fast, too fast for something freshly mutated.

Syvarn’s eyes narrowed. "You may have awakened a class..."

The beast snarled and rushed him.

"...but it’s the weakest one."

Syvarn activated [Tactical Beast Shift].

Neural energy pulsed through his skin as his body reshaped into his beast form.

His silver hair stiffened into blades, his claws extended, and his eyes glowed with pulse-tracing patterns.

He dashed sideways, dodging the wild strike.

The creature’s claws tore through lab cables behind him.

Too slow.

Syvarn’s movement blurred.

He reappeared behind the beast and struck it with the back of his claw.

The impact crushed it through the lab wall and into the side tunnel below.

It landed hard inside a sealed research cave.

Dust filled the air.

Syvarn leapt down after him, landing lightly. His clawed feet touched stone.

The beast twitched. Tried to rise.

Syvarn raised his hand, a small field pulsing out.

[Mental Snare Field] spread around the beast. The moment it tried to rush again, it staggered.

"You’re already in the trap," Syvarn said. "Try again. You’ll slow even more."

The beast roared, but its legs shook.

Its brain was already short-circuiting from its own rage.

Syvarn turned away.

"Stay there," he said. "I’ll dissect you later."

He smirked, walking back toward the lab door.

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