As an Immortal in the Multiverse

Ethan crouched down, picking up a shard of glass from the bloodstained floor. He lifted it, examining his reflection.

Blue eyes. Sharp jawline. Long blonde hair, a Greek god-like physique.

Hell, he looked like some kind of prince. If he had been born with this face in his past life, maybe he wouldn't have died a lonely virgin. He scoffed, tossing the glass aside.

Then, his gaze shifted to the other cells.

Mutants.

Some were unconscious, others barely clinging to life. They had been used as lab rats, just like him. He could tear those doors open, set them free… but a different idea crossed his mind.

His lips curled into a smirk.

Before he could make a move, the sound of marching boots filled the corridor. Armed soldiers poured into the hallway, surrounding him. More than fifty of them, clad in black armor, wielding high-tech rifles.

A voice crackled through the intercom.

"Subject 18, surrender immediately."

Ethan tilted his head. Subject 18? That was his designation, huh?

He wiped the blood from his knuckles and took a step forward.

"Or what?" he asked, voice calm.

The commander hesitated, then barked an order.

"Fire!"

Bullets tore into Ethan's body. His chest, arms, and legs were riddled with holes. Blood splattered the walls. His vision blurred as he felt the warm liquid dripping from his mouth.

And yet… he grinned.

There was no pain. No fear.

Only pure, unfiltered excitement.

The wounds were already closing. His muscles strengthened, his bones hardened, and his movements became sharper. His body was adapting.

"My turn."

He dashed forward, faster than before, his fingers wrapping around a fallen soldier's knife. The nearest enemy barely had time to react before Ethan plunged the blade into his throat.

One down.

The others scrambled back, opening fire again. Bullets ripped through him, but his body no longer cared. The more they shot, the stronger he became.

He moved through them like a shadow, his knife an extension of his will.

A slash to the jugular. A stab to the heart. A knife through the eye.

Three more down.

Someone swung a rifle at his head—Ethan caught it mid-air. With a flick of his wrist, he snapped the barrel in half like a twig and shoved the broken end into the man's throat.

Five down.

The soldiers screamed, trying to retreat, but Ethan was already on them.

Faster.

Stronger.

Sharper.

Gunfire became meaningless. Pain was nonexistent.

The commander's panicked voice echoed through the speakers. "He's too dangerous! Eliminate him at all costs!"

'Eliminate me?' Ethan smirked while wiping the blood off his cheek.

He rolled his shoulders, feeling his body adjust to the carnage. His senses sharpened. His instincts refined. He was no longer some lab rat.

He was a predator. And the hunt had just begun.

The alarm blared through the facility, a high-pitched wail of desperation and panic.

Ethan stood in the middle of the hallway and his body is drenched in blood—most of it wasn't his.

A dozen guards aimed rifles, shotguns, and energy weapons at him and their hands were shaking. The red emergency lights cast long shadows on the walls, making the scene feel almost surreal.

He smirked. "You guys really think that's gonna work?"

A second of silence. Then—

BOOM!

They opened fire.

Bullets & Blades

A storm of lead slightly tore through Ethan's body and his body jerked back—

His grin widened. He felt nothing.

In fact… his body was already adapting.

The next volley of bullets? Bounced off his skin.

One of the guards panicked and lunged at him with a combat knife, aiming for his throat. Ethan caught his wrist mid-air and snapped it like a twig. The man screamed—until Ethan buried the same knife into his skull.

Another soldier tried to stab him from behind. Ethan grabbed his arm, twisted it around, and forced the blade into the man's own chest.

"You brought knives to a fight against an immortal?" Ethan scoffed while tossing the lifeless body aside.

The remaining men hesitated. He could smell their fear.

"FALL BACK! DEPLOY THE HEAVY WEAPONS!"

The steel doors behind them slammed open, revealing a mounted minigun.

A soldier in thick, reinforced armor stepped forward, gripping the massive weapon. He pulled the trigger.

BRRRRRRRRRRTTTTTT!

A hurricane of 50-caliber rounds blasted through the corridor, ripping apart anything in its path.

Ethan stood his ground.

Bullets tore through his body like paper. His arms were shredded. His torso was torn open. Half of his skull was blown away—

Then it all grew back.

The soldier faltered. "What the fuck…?"

Ethan tilted his head while cracking his neck.

Then, in a flash, he moved.

In a blink, he was in front of the minigun operator. The soldier had no time to react—Ethan's hand crushed his throat like a soda can.

He ripped the minigun from the mount. The weapon was meant for a vehicle, too heavy for any normal human to carry.

Ethan hoisted it up with ease.

"Let's see how you like it."

He pulled the trigger.

The hallway turned into a meat grinder.

The guards were torn apart. Blood painted the walls as bodies dropped in seconds.

"WE CAN'T STOP HIM! USE EVERYTHING!"

Some guys went to other room and the flamethrower units stepped forward.

FWOOSH!

A wave of hellfire engulfed Ethan. The heat was intense, melting steel, incinerating bodies instantly.

His flesh burned. His bones turned black.

And then—he adapted.

The fire no longer hurt. His skin regenerated, but this time… it was different. His body temperature rose, his cells absorbing the flames.

When the fire cleared, Ethan stood untouched but also naked.

"Is that all?" he asked while stepping forward.

The men stared in horror.

Then they dropped gas canisters. Thick, green smoke filled the hallway. It was nerve gas—strong enough to paralyze and kill within seconds.

Ethan inhaled deeply.

His lungs burned for a moment… then adapted.

Instead of killing him, the gas felt like fresh air.

He laughed. "Thanks, I needed that."

The guards backed away.

Desperate, the last group of soldiers set up rocket launchers.

"FIRE!"

BOOM! BOOM! BOOM!

Explosions erupted in the hallway, sending shockwaves through the entire facility. The concrete walls collapsed, metal beams twisted from the sheer force.

Ethan was blown apart.

For a moment, there was nothing left. Just smoke, fire, and rubble.

Then…

A figure walked out of the flames.

His skin was molten, his bones glowing red-hot. His wounds sealed within seconds.

His body had evolved past explosions.

The last soldier dropped his weapon and ran.

Ethan didn't let him.

With inhuman speed, he appeared behind the man and snapped his neck.

Now… there was only one person left.

The one who started this. After finding some clothes, he went after the one who is running things here.

.

.

.

It didn't take long for him to find the control room. Ethan kicked open the control room doors.

Dr. Reinhardt stood there, calm and composed as he watched Ethan with amusement.

"Fascinating." The old scientist smiled. "I've watched you evolve in real-time."

Ethan wiped the blood off his face. "You must be the asshole in charge."

The old man chuckled. "Dr. Reinhardt. I oversee this facility… or rather, I did." He gestured to the destroyed monitors and bloodied walls. "You've done quite a number on my staff."

"Not enough," Ethan growled while taking a step forward. "You experimented on me. On all of them." He gestured toward the cells filled with tortured mutants. "Time to pay for that."

Dr. Reinhardt didn't flinch. Instead, he reached into his pocket and pressed a small red button.

Ethan's eyes widened.

BOOOOOM!

The explosion consumed everything.

Fire raged, metal beams twisted and shattered, and the entire facility collapsed in on itself.

Buried Alive... Ethan didn't feel pain. But he felt pressure.

Tons of concrete, steel, and debris crashed down on him. His body was buried beneath a mountain of wreckage.

At first, he didn't move. The sheer weight pressing down on him should have crushed his bones into dust.

But his body adapted. His lungs didn't need air. His bones became denser. His muscles adjusted to the immense force.

His vision was pitch black, but his instincts guided him.

Ethan clenched his fists. Then—he moved.

BOOM!

A massive slab of concrete was thrown into the air.

A second later, another explosion of debris followed as Ethan ripped his way out of the rubble.

Twisted steel rods pierced his body. Large chunks of cement crumbled as he forced his way through.

The flames of the explosion had burned away his clothes, leaving him completely naked.

But he didn't care.

He was alive.

And he felt stronger.

His skin had become even more resilient. His muscles felt firmer, denser. His very cells had absorbed the energy of the explosion, evolving beyond the destruction.

Ethan took a deep breath, his lungs filling with the scorched, smoky air.

Then, he looked around.

The entire facility was gone. Just a burning wasteland of ruins, bodies, and shattered steel.

And yet—

Ethan grinned.

"Nice try, old man." He cracked his knuckles and looked down.

"Damn, that's big." He then looked around to find some clothes as it was also snowing outside.

He offers some condolences for the mutants here and then looked around, he wanted to know where exactly he is.