"SCP-682—the immortal, humanity-hating abomination."
"Immortality is just one of its terrifying traits. Its other ability? Infinite evolution through consumption. It can derive energy from anything it ingests—organic or inorganic."
Inside Site-0, Chu Yun murmured to himself before turning his gaze toward the command center.
A stern officer, eyes sharp as a hawk, addressed seven soldiers clad in pitch-black MTF combat gear:
"The two agents forgot the Foundation's principles. Their methods were flawed."
The MTF operatives stood like tombstones, voices unified:
"Secure."
"Contain."
"Protect."
With the officer's command—"Operation begins."—the squad vanished.
Chu Yun stepped out of the anomalous space, surveying the vast emptiness of Site-0.
"The system's starter package was stingy—just one site and a handful of personnel..."
He paused, then smirked.
"But once we contain SCP-682, this world will finally get interesting."
Queens – A Warzone
The once-glamorous district now resembled a bombed-out wasteland.
Shattered flower beds. Skyscrapers reduced to skeletal ruins.
The air trembled with explosions, as if a full-scale war had erupted.
And at the center of it all—
Saitama and SCP-682.
To them, steel and concrete were as fragile as foam.
No weapons. No armor.
Because they themselves were the ultimate weapons.
Compared to SCP-682's near-limitless adaptations, Saitama's power was brutally simple.
One Punch Man.
A being whose every strike ended fights instantly—hence the name.
His durability defied biology. No attack, no matter how devastating, could harm him.
Even being kicked into space barely inconvenienced him—he simply jumped back to Earth.
His reflexes, speed, and senses were equally superhuman.
By all definitions, Saitama was invincible.
Until today.
Until he met something that wouldn't die.
The Battle Reaches Its Peak
ROOOAAAR!!!
SCP-682's massive skull was pinned to the ground by Saitama's grip.
The sheer force radiating from his slender arm warped the air, heat haze shimmering.
His other fist reared back, power distorting space itself.
For a moment, the multiverse held its breath.
Then—
Saitama stomped.
BOOM!
The ground shattered like water under his foot.
"Serious Punch."
CRACK!
The fist descended.
A force like a meteor impact.
SCP-682's body imploded on contact.
The shockwave erupted outward—
—a nuclear-grade mushroom cloud of pure devastation.
Buildings vaporized in an instant.
The blast wave shattered glass for miles, finally dissipating...
Silence.
Then—
The multiversal chat exploded.
"WHAT THE ACTUAL F—?! HE JUST PUNCHED A MUSHROOM CLOUD INTO EXISTENCE?!"
"DEAR GOD, WHAT KIND OF POWER IS THIS?!"
"WHERE'S THE LIMIT?!"
For a brief moment, hope flickered.
Surely, this was the end for SCP-682?
But then—
ROOOAAAR!!!
The ground collapsed.
Saitama shoved rubble aside, standing with labored breaths.
Steam rose from his body—his sweat instantly vaporizing from residual heat.
His orange jumpsuit? Gone.
Only his muscular frame remained.
But his expression?
No more excitement. No more thrill.
Just weariness.
He could tank SCP-682's attacks effortlessly.
But it didn't matter.
Because he couldn't kill it.
Oh, he knew—his true power went far beyond this.
He'd resisted black-hole-level gravity before.
His clashes with Cosmic Fear Garou had shattered distant stars from sheer shockwaves.
But SCP-682?
Its potential was just as limitless.
As the dust cleared—
SCP-682 tore free of its mangled flesh, rising once more.
Unharmed.
Stronger.
Saitama sighed.
"Please don't test my patience. I just want to leave."
The reply?
A roar louder than before.
The multiverse watched in stunned silence.
One Punch Man Universe – Hero Association
The S-Class heroes sat frozen.
Their minds reeled.
Shock at Saitama's power.
Dread at SCP-682's indestructibility.
Nearby, Genos and the others could barely process it.
"Even Sensei's Serious Punch... didn't work?"
"This thing... it's beyond Demon-level."
"Dragon-level? No... higher." (Dragon: Capable of annihilating multiple cities.)
Marvel Universe – S.H.I.E.L.D.
The Avengers sat in shell-shocked silence.
Tony Stark, usually so smug, slumped in his chair.
"Can technology even reach that level?"
Bruce Banner's fists clenched.
The Hulk's rage theoretically had no upper limit.
But matching that punch?
Doubtful.
In another room, S.H.I.E.L.D. leadership argued fiercely.
Nick Fury's face darkened with every word.
His earlier order—downgrading the SCP Foundation's threat level—now felt like a joke.
One thought consumed him:
How do you contain something like SCP-682?
The MTF Arrives
As Saitama debated throwing SCP-682 into space—
Footsteps echoed.
A squad emerged from the ruins.
Clad in black tactical gear.
Emblazoned with a logo:
Mobile Task Force Pi-1 ("City Slickers").