Bio-engineered Dinosaur in the immortal world

The monstrous form of Wei Long, his Bio-engineered dinosaur self, roared with a terrifying intensity that shook the very air around him after devouring the unsuspecting autumn dragon sect disciple whole.

ROOOOOAAAARR!!!

The rampaging beast, still driven by an unquenchable hunger, did not pause—it barreled forward, its colossal limbs crushing the earth beneath it.

Its reptilian eyes burned with a primal fire, devoid of reason, steeped in an all-consuming hunger that only instinct could understand.

The scent of blood, the thrill of the hunt, and the overwhelming drive to consume—it was all that mattered in this moment.

Every beast in sight became prey; there was no hesitation, no consideration, only the unrelenting cycle of devour, destroy, and dominate.

Somewhere deep within this monstrous shell, buried beneath layers of instinctual carnage, Wei Long's human consciousness flickered, trapped in the endless tide of biological urges.

He observed the actions of his rampaging body with an eerie detachment, as though he were both a part of it and separate from it.

"This... is the true power of my Bio-engineering instinct," Wei Long mused within his mindscape. "My body moves on its own, unshackled by hesitation, by logic, by anything but the drive to consume and survive. And yet, I remain—a passenger, a spectator to my own form."

His monstrous body lunged at a stampeding herd of buffalo-like creatures, their thick hides and powerful legs useless against the sheer might of his jaws.

They fell, one by one, their cries silenced by snapping bones and tearing flesh.

Satisfaction trickled into him, ever so slowly, as each bite carried a rush of life-sustaining energy.

He could feel it—his satisfaction level inching upward from nine percent, his hydration climbing from twelve percent.

It was a slow, steady process, a gruesome but necessary cycle of consumption that gradually pulled him toward regaining control.

"I just need to keep going," Wei Long thought, his human mind sharpening its focus. "Once my satisfaction hits fifty percent and my hydration reaches forty, I will take control again. I will no longer be a slave to this monstrous instinct."

His beastly form stomped forward, eyes scanning the landscape for more prey.

In the distance, the creatures of the now green forest fled in every direction.

Crocodile-like beasts slithered into the water, hoping to escape, only to be ripped from their hiding places by massive jaws.

The smaller creatures, those that typically thrived in the shadows, found no refuge.

Even the great horned creatures, those that roamed in packs and trampled everything in their path, found themselves unable to resist the terrifying presence of Wei Long's rampaging form.

He was power incarnate, destruction given form. And deep within, his human consciousness could only marvel at the sheer efficiency of his monstrous self.

"This is... incredible. No hesitation, no wasted movement. Every muscle, every fiber of my being is focused on one thing—survival through overwhelming force."

Wei Long could feel the gradual shift, the slow reclamation of his own body as the satisfaction and hydration levels rose.

Thirty percent.

Thirty-five percent.

The number climbed ever higher as the massacre continued.

A group of horned deer-like creatures was swept into his maw, their bodies crushed instantly, adding to the rising tide of sustenance.

Forty percent.

He was getting closer.

The thrill of regaining himself sent ripples of anticipation through his mind.

With each beast that fell, with each meal devoured, his satisfaction inched closer to that golden threshold.

Forty-five percent.

He could almost taste his return to control, the moment he would rise above this blood-soaked haze.

The beast's movements, though still powerful, began to twitch.

The spasms that signaled the return of his human mind began.

Wei Long braced himself for the shift, knowing he would reclaim his thoughts, his movements—his power.

"Just a little more," he whispered within his mind. "A little more, and I'll be back."

Fifty percent.

His body froze.

Wei Long's consciousness surged, triumphant. "Yes! It's happening! I'm taking back—"

His entire form shuddered violently.

A scream—no, a howl of raw, primal terror—erupted from deep within him.

The Bio-engineered instinct, the monstrous essence that had controlled him, did not yield as he had expected.

Instead, it resisted.

A surge of instincts, more powerful than before, gripped his mind, tightening around him like a vice.

A tidal wave of hunger, stronger and more demanding, crashed against his fragile control.

Wei Long's thoughts wavered. "No... what is happening? This isn't—!"

His beastly form convulsed, spasms wracking its massive frame as a guttural snarl erupted from its throat.

The instinct screamed.

And Wei Long froze.

But he would immediately shake his head. Maybe he is just thinking things.

Immediately, Bio-engineered instinct continued to rampage, devouring everything in its path.

The beasts that had been left behind from the initial stampede were now helpless prey, unable to resist the monstrous predator that had taken control of his body.

Each bite, each crunch of bone, and each desperate squeal only fueled the relentless hunger driving his instincts forward.

Satisfaction: 51%. Hydration: 56%.

Inside his mind, Wei Long's human consciousness observed everything, his thoughts racing.

"It's fine. I knew this would happen. Back then, I was Level Six, barely able to handle my Bio-engineered instincts. But now I'm Level Twelve. Stronger. Better. More in control."

His thoughts clung to that belief like a lifeline.

"It's just that my limits have changed. It's not fifty percent anymore, it must be fifty-five. Once I reach that, I'll be back in control."

But then his body continued devouring. The rampage did not stop. Beasts fell one by one, their corpses reduced to nothing but shredded remains. The satisfaction climbed.

Satisfaction: 53%. Hydration: 58%.

Wei Long frowned. A flicker of unease crept in.

"It's okay. I just underestimated it. Sixty percent then. That must be the new limit."

His body lunged forward, snapping up another beast.

A thick-furred creature with glowing eyes screeched in terror as his Bio-engineered instincts clamped its jaws down, shaking it violently until the life drained from it.

Wei Long watched as the hunger never faltered, never hesitated.

Satisfaction: 56%. Hydration: 60%.

Nothing changed.

Wei Long felt his unease deepen.

"Alright, maybe sixty-five percent."

The Bio-engineered body paid no heed to his thoughts.

The next beast was torn in half.

Then another.

Blood sprayed across the land, pooling into dark puddles.

The instinct-driven monster didn't stop.

It was enjoying this.

Satisfaction: 63%. Hydration: 66%.

Wei Long felt his confidence crack.

"Seventy. Seventy has to be the limit."

He was lying to himself now, and he knew it.

Satisfaction: 68%. Hydration: 71%.

His body kept moving. More beasts fell. Their cries were drowned in the wet, meaty sounds of tearing flesh.

Satisfaction: 72%. Hydration: 76%.

Wei Long felt a cold sensation settle over his consciousness. It was fear. He realized then, this wasn't just about energy anymore.

"This isn't just instinct running wild, is it?" he whispered in his mind.

He had assumed the Bio-engineered instinct was mindless, purely acting on hunger. But now, as he watched, something terrifying was unfolding.

The way his body moved wasn't just predatory.

It wasn't just ravenous.

It was controlled. It was like… being

Satisfaction: 75%. Hydration: 80%.

Wei Long's breath hitched.

"Stop."

But it didn't. His body kept hunting, the muscles moving in a way that felt eerily precise.

The claws sliced flesh with an efficiency that wasn't just instinct.

It was skill.

Satisfaction: 80%. Hydration: 85%.

Wei Long's panic swelled.

"Eighty-five percent! That has to be enough!"

Nothing. The rampage continued. His body moved faster. His mouth twisted, curved upward.

Then Wei Long saw it.

His Bio-engineered body smirked.

It wasn't just a random facial twitch. It was purposeful. It seemed aware he was watching. This feels somehow familiar.

Wei Long's human consciousness reeled hard.

"No, no, no, no—"

Satisfaction: 87%. Hydration: 88%.

It wasn't stopping.

The body was grinning, its movements smooth, almost playful. Like a predator that knew it had already won.

Satisfaction: 90%. Hydration: 92%.

Wei Long's mind flashed back.

A memory from his past life. War. Battlefields. Soldiers. He had seen this expression before.

Not on a beast. Not on a monster.

On a unique specie.

Sadistic grins.

The kind that belonged to those who didn't just kill for survival, but for pleasure.

His own body was grinning at him.

Wei Long felt terror for the first time in both of his lives.

And then, the instinct laughed.

A real, deep, guttural laugh that sent chills through his very soul.

Satisfaction: 91%. Hydration: 94%.

Wei Long realized the truth then.

The body that was overtaken by the bio-engineered instinct was no longer the one hunting.

It was now killin for him, his human consciousness.