Villain: Ultimate Mutation System in the Alternate World

The hordes of Zombie-Corrupted froze in their tracks beneath Reign, then suddenly turned around as if on command, sprinting towards the direction of the roar.

Their movements resembled a panicked stampede of wild beast, limbs flailing and bodies colliding in a frenzied rush. The ground trembled under the weight of their hurried steps.

Reign, on the other hand, stayed hovering. His arms crossed over his chest as he waited for whatever was trying to intimidate him to show itself.

He could pinpoint its exact direction using his Undead Eyes, but the miasma hid its actual appearance.

"RAWWWR!!!"it roared again.

'Can this thing only roar?' Reign asked, annoyance evident in his voice.

"RAWWWR!!!"

"MOTHERFUCKER, STOP SHOUTING!!!!!" Reign roared in response, his voice a deep, rumbling growl that echoed like an erupting volcano.

Negative energy and a dominating aura surged from him, making the air vibrate.

The ground began to shake, windows rattling and buildings quivering as if in an earthquake.

Structures already on the verge of collapse crumbled, reducing to debris.

Clouds of ash and shattered concrete filled the air, intensifying the turmoil stirred by his overpowering roar.

A group of Zombie-Corrupted, too close for their own good, didn't even have time to scream before they exploded like overripe tomatoes from the sound waves.

Their remains splattered against walls and debris, creating a gore art masterpiece.

This was the effect of the knowledge he gained from unlocking clusters; now he could infuse negative energy into his voice, turning it into a powerful attack.

[System: Congratulations, Host, for creating a new original skill. Please name it.]

Reign didn't dwell on it much and just called it (Sonic Roar.)

'Seriously, who needs this much roaring? It's like watching a bad monster movie'

He adjusted his arms, crossing them tighter over his chest, waiting for whatever was out there to make a move—preferably one that didn't involve more screaming like a bitch.

However—

"RAWWWWR!"

'That's it, you're dead,' Reign clicked his tongue in annoyance, his patience snapping like a twig.

SWOOOOOOOSH!

In an instant, he went from 0 to 500 km/h in one second, rocketing towards the source of the annoying sounds.

The air hummed around him as he flew, his speed creating bunch of sonic booms .

He zeroed in on the roaring figure like a missile, determined to put an end to it.

When he got close, he finally saw the actual form of the creature.

It was a unique type of corrupted. Though not as big as the two giants he'd faced, it still stood around the height of a three-story house.

What caught his attention was its bizarre appearance: a massive, dog-like body coated in pure dark fur, surrounded by swirling black smoke.

Its three decaying heads were adorned with red, crazed eyes that glowed ominously.

Dark, jelly-like substances oozed from its wounds and crevices, dripping onto the ground below.

While it snarled, black saliva dripped from its jagged, rabid-like teeth.

He paused for a moment and decided not to kill it right away after seeing that it was a dog.

Dogs held a special place in his heart; they were his favorite animals before he became a psychotic, man-eating monster.

Even now, he believed they were the most loyal companions in the world.

Hovering in the air, and staring at the monstrosity before him, a memory flashed through his mind.

He recalled watching a movie depicting the hounds of hades, a multi-headed dog that guard the gates of the underworld to prevent the dead from living.

But this creature was less majestic, far uglier, decayed in appearance, and way smaller—almost like a cheap imitation due to the lack of budget for special effects.

'One of the heads also looks like my good boy, Wick,'  he thought.

He felt a mix of amusement and irritation. It was as if someone had taken elements from his favorite pet and mashed them into this bizarre, corrupted form.

'Well, that's just insulting,' he muttered under his breath.

"Copying my dog's head ? You've got some nerve." he sneered in contempt, treating Wick's face as if it were unique and not a common feature among a particular breed of dogs.

"RAWWWWR" The corrupted three head dog roared again, its heads snapping and spewing toxic miasma.

"Three heads and still this stupid?" he sighed, shaking his head with disappointment . "I've seen smarter dogs."

He didn't bother dodging the toxic miasma; there was no way something this weak could affect him, as there was not even a chance that this gas could enter his body.

When the three-headed dog saw that its attack had failed, it leaped into the air, aiming to bite Reign head-on.

With a casual movements, he raised his right hand and delivered a powerful slap to one of the creature's heads.

BAM!

The impact sent the monster flying downward, crashing violently onto the ground.

He then activated his railgun; there was no need to prolong this fight against such a weak enemy.

If it had been a demon, he might have tried to tame it like Wick, and use it as a mount.

When the railgun formed, it appeared sleeker and smoother than before. It no longer resembled a bone but took on a futuristic and alien appearance, as he chose to maintain its exotic look of having some curves that looked like veins.

With a low hum, the railgun powered up in his hands, its side lighting up in red.

"You had your chance," he said, his voice firm . "Now, it's time to end this."

CLICK!

ZZZZZZZZ!

The railgun burst through the air, directly destroying the creature's middle head.

Pieces of bone and flesh scattered in all directions, mixing with the dark spray that painted the air.

Despite the devastating blow, the creature's body continued to convulse and twitch, its remaining heads snarling at him.

ZZZZZZZZ!

ZZZZZZZZ!

He fired two more shots with lightning speed. The creature was unable to move an inch before its remaining heads exploded like ripe tomatoes, bursting in a gory spectacle of shattered bone and splattering muscle tissues.

THUD!

With the last two heads obliterated, the creature finally collapsed to the ground in a heap of twitching limbs and pooling blood.

Reign hovered over the grotesque remains, his railgun still hot from the rapid succession of shots.

Just as he began to relax, thinking the battle was over, a new threat emerged.

The ground beneath him trembled as the horde of Zombie Corrupteds, drawn by the scent of blood , rushed forward.

Rotting bodies surged and flailed as they descended upon the fallen creature, tearing into its flesh like hungry beast.

Their numbers were so overwhelming that the dog-like creature was quickly engulfed and drowned beneath them.

'Is this considered cannibalism?' he asked inwardly.

'No, they're not eating it,' he mumbled, puzzled by the strange sight unfolding before him.

As time passed, the number of Zombies surrounding the corpse diminished, but the creature's body was growing larger and more menacing by the moment.