Chapter 1: A Virus Awakens
Heat.
A scorching wave of heat struck from behind.
"Damn, is something on fire?"
A sharp sense of danger snapped Leon awake.
Instinctively, he dodged, barely avoiding the wave of heat.
"Damn… that scared the hell out of me. I almost got roasted…"
Leon hadn't even had time to breathe in relief when he suddenly paused.
"Huh…?"
Something felt wrong.
Why did he float over?
Only then did he realize something strange. His dodge just now wasn't a roll or a jump.
He had… floated past it.
"Wait… don't tell me I died and turned into a ghost…"
Looking around, Leon froze.
The world around him was colorful and bizarre, filled with strange giant creatures with wriggling tentacles. It looked like some nightmare version of a microscopic ocean—dreamlike, terrifying, and visually overwhelming.
"What the hell is this place?"
Just then, a message appeared in his mind.
"Host consciousness detected. Beginning binding of the Virus Evolution System… 1%, 2%, 3%…"
"Virus Evolution System? What the hell is that?"
Leon suddenly paused.
"Wait… a system?!"
His mood instantly exploded with excitement.
A system!
Anyone who had read web novels knew what that meant. The protagonist's cheat, the golden finger that lets someone reach the peak of life!
"So I really got the protagonist template?"
Leon felt thrilled.
"But what kind of system is this… spreading viruses everywhere?"
While he was thinking, the progress bar in his mind reached the end.
"…98%, 99%, 100%. Virus Evolution System binding complete."
"Congratulations. The Virus Evolution System has successfully bound. Initial status updated."
Host: Leon
Virus Origin: Progenitor Virus
Level: Lv1
Host Capacity: 0/1
Vitality: 50/100
Adaptation: Level [-]
(Can only survive briefly without a host)
Evolution: 1%
Ability: Locked
Mission: Completely Host an Organism
Warning: Please find a host immediately, complete infection,
and unlock ability information.
As the system notification faded, Leon suddenly felt his vision zoom in as if someone had attached a super telescope to his eyes.
The colorful, kaleidoscope-like world suddenly became clear.
Leon looked down at himself.
Then he gasped.
"…Damn. I turned into a tentacle monster."
Right now, he had become a floating cluster.
Yes—a cluster.
Each individual unit was a tiny purple spherical cell, with dozens of soft tentacle-like appendages waving around it like snail feelers.
Just looking at them made his scalp tingle.
They were too small to see with the naked eye, but there were countless of them—probably hundreds of millions—gathered together in a drifting cloud.
Leon tried to move.
The entire virus cluster moved along with his thoughts.
"So… I'm the collective consciousness of this virus colony…"
He quickly understood.
His current state was like an ant colony. There were countless individuals, but they all shared the same consciousness.
"Progenitor Virus…"
The name sounded strangely familiar.
Before Leon could think further, he noticed something alarming.
His vitality was dropping.
"Vitality: 49… 48… 47…"
As his vitality decreased, virus individuals began dying, and the entire cluster shrank.
"Damn, it's that fast?"
Looks like he needed to find a host immediately.
Leon quickly looked around and soon noticed some of the largest lifeforms nearby.
"N-No way… this is…"
He nearly lost his mind when he saw it.
Below him, an orange lizard was jumping around in battle against a creature that looked like a rock with arms.
The orange lizard had a flame burning on the tip of its tail.
Around them, a crowd of people watched the fight.
Two humans stood facing each other in the middle, shouting commands with excited expressions.
"What the hell?"
If Leon wasn't mistaken…
That orange lizard was Charmander.
And the rock creature with arms was Geodude.
"…Holy crap. Is this the Pokémon world?"
Leon glanced at his vitality again.
42.
He gritted his teeth.
"Whatever world this is… I need a host first."
He controlled the virus cluster and drifted downward toward a teenage boy shouting commands in the middle of the crowd.
"Heh. Kid, it's your honor that Master Virus has chosen your body."
The boy had no idea what danger was approaching.
He was completely focused on the battle.
"Charmander, use Ember!"
Invasion.
With a thought from Leon, a large group of viruses rushed straight into the boy's mouth and nose as he shouted.
The boy didn't notice anything.
He was still yelling excitedly.
"Charmander, use Dragon Breath!"
After passing through the long, narrow airway, Leon felt delighted.
He immediately commanded the virus army to spread throughout the boy's body—into organs, blood vessels, and lymphatic systems.
The boy's immune defenses were meaningless against Leon.
Parasites, microorganisms, and other tiny lifeforms along the way were instantly infected.
"Heh… humans are weak."
Soon, the virus had infiltrated every cell in the boy's body.
The cell walls burst open, then reassembled under the power of viral transformation.
What was amazing was that although the Progenitor Virus was extremely aggressive, it didn't destroy the DNA like radiation would.
Instead, it reconstructed and modified the original DNA, causing mutations.
At the same time, Leon clearly felt himself becoming stronger.
Or rather, his virus cluster had grown larger.
"Congratulations. Successful host integration. Evolution status updating…"
Host: Leon
Virus Origin: Progenitor Virus
Level: Lv1
Host Body: 1/1 (Human)
Vitality:
40/241 → 41/242 → 42/243
(100 base vitality + 200 host vitality bonus)
Adaptation: Level [-]
(Can survive long-term within a host)
Evolution: 9%
Ability:
Increase host brain activity by 9%
(If the biological tolerance limit is exceeded,
the host may collapse or mutate)
Mission: Completely host a living organism
Leon carefully read the updated information.
He quickly understood part of the system.
The 9% evolution rate likely came from absorbing the genetic information of this human.
After possessing the boy, Leon's vitality stopped decreasing and even began recovering.
At the same time, with the host's vitality bonus included, the total value could reach around 300.
"So the stronger my host's vitality is… the higher the bonus I get?"
He looked at the ability entry.
It was no longer locked.
Now it showed a new ability.
Increase host brain activity by 9%.
"This looks like a buff…"
Leon thought about it.
"Could it be that I'm actually a lawful good virus?"
But judging from the warning below, the enhancement had limits. If it exceeded the host's tolerance, it could cause collapse or mutation.
"Well… I'm a virus after all, not a probiotic."
"As long as I don't turn people into zombies, that's already pretty good."
Overall, for now…
The advantages seemed to outweigh the disadvantages.
(Note : This is not the real Leon s kennedy from RE its just the name of our mc to match the vibe )
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