Lust System: Rise of the Primordial Demon

Caelen straightened, his face changing not in agony, but in dark, thrilling fascination. He looked at the wound, then at her, as if she had just presented him with a fascinating new game. The pain seemed to electrify him.

"And what a beautiful answer you are," he purred, the [Abyssal Charm] in his voice thickening the air, though it now seemed to slide from her divine resolve like oil from water.

"But even the most perfect answer can have its equation changed."

"You will find I am an unsolvable problem," she replied, and lunged.

The fight exploded. Velantra was efficient, every movement precise, every swing of the [Auroral Edge] a deadly level combat.

Caelen was forced into a frantic, defensive dance. [Volt Breaker] sent him crackling across the grove to avoid slashes that cut through the space where he'd just been.

He couldn't parry and when he tried to deflect with a claw sheathed in the agonizing pleasure skill [Eros Fang], the holy light seared him, forcing a pained snarl from his throat.

The elven city was in a panic. The black sky was illuminated by violent, strobing flashes—blinding divine light against corrupt crimson lightning.

But more than the light, the citizens felt it. A deep, oppressive, and terrifyingly familiar energy radiated from the grove—the same corrupting presence that the feared Dark Elves have.

Whispers of "demon" turned into shouts of fear.

On the highest balcony of the palace, shadows formed together, forming into the calm, figure, Seralyth.

She watched, her expression unreadable, making no move to intervene. She was a scientist observing a volatile experiment.

A door slammed open in a lower courtyard. Evelyn stumbled out, her face pale, drawn by the terrifying energy.

Lucy was right behind her, her usual silent demeanor broken by a sharp, startled gasp. Her crimson eyes, more experienced in battle than Evelyn, widened at the spectacle.

"What… what happened to him?" Evelyn breathed, staring at the beautiful silver-haired demon with horns and claws dueling a being of pure light.

Lucy's pale cheeks flushed. The memory of him with her just an hour ago, of how he'd looked at her with those new, captivating eyes, surfaced with a jolt. "He… woke up like this," she said, her voice quieter than usual, almost hesitant.

"He found me first. Said he wanted to… see me… before he showed everyone else." She crossed her arms, looking away a bit, but the worry was plain on her face. "He's different. It's not just the looks. He's… more."

He wanted to see me first. The thought echoed in her head, a confusing warmth battling with the cold fear of the scene below.

Back in the sky, Caelen was being cornered. A sweeping [Auroral Edge] slash released arcs of rainbow light—[Aurora Execution]—that ignored the very concept of distance, appearing instantly before his chest. He twisted violently, but not fast enough. The light scored a deep, burning furrow across his torso, and he roared in a mix of pain and frustration.

This isn't working, he thought, his mind, sharpened by his immense [Intelligence], racing for a solution. I can't match the weapon's power. She's too skilled to get close to without it.

He was out of options. As he dodged another vaporizing swing, a desperate, insane idea formed. He would try to grab the blade since he physically stronger than her. It was suicide, but it was the only move left, just hold it for a second and remove it away from her.

[Caelen's inner body]

But deep within him, in the void where his inner demon sat in a lotus position—a perfect, silent copy of his new form—something stirred.

A soft, ethereal light, the color of a forgotten memory, manifested behind the motionless demon. It resolved into the faint, graceful form of a woman.

She had no discernible features, only a silhouette of gentle, spiritual energy. With a tenderness that spoke of ages past, she wrapped her arms around the demon from behind in a silent embrace.

Where her form touched the demon's back, intricate runes began to bloom on its pale skin. They glowed with a strange, new energy—a shifting, volatile blue-purple light wreathed in a misty gray aura.

The symbols were ancient, their language of not demons or angels. They flashed rapidly, writing themselves into the demon's very core, rewriting a piece of its fundamental code.

The spectral woman leaned her head against the demon's, her form beginning to dissipate. In her final moment, she pressed a soft, ghostly kiss to its cheek. Then she was gone, her essence spent.

The runes flashed one final, brilliant time and then faded, leaving the inner demon unchanged, yet imprinted with a power unfamiliar.

On the outside, Caelen saw it. A notification, stark and simple, burned into his vision against a black screen, its demonic script as natural to him as breathing.

The system, ever logical, could only interpret the sudden, impossible surge as a threshold crossed.

[UNKNOWN ENERGY SIGNATURE DETECTED]

[SOUL-WEAPON SYNCHRONIZATION: FORCED]

[TEMPORARY PASSIVE UNLOCKED: PRIMORDIAL USURPATION]

[Effect: The user's soul, imprinted with foreign runic essence, can temporarily overwrite the ownership and affinity requirements of any weapon, tool, or artifact upon physical contact, allowing for brief usage.]

WARNING: ESSENCE DRAIN DETECTED.]

Caelen's grin returned, a terrifying flash of triumph. He didn't understand this, only the result. A plan, insane and born of absolute arrogance, crystallized in an instant.

He stopped dodging.

He made an act as if planted his feet even on the air as Velantra charged for a final, decisive strike.

The light around her began to dim as if in a solar eclipse, all power funneling into the sword for what could only be Ecliptic Judgement.

"Your existence ends here!" she declared, her voice echoing with finality.

"I told you," Caelen said, his voice dropping into a low, resonant register that vibrated through the grove. "I disagree."

He didn't dodge. He didn't block.

As the blade descended to erase him, he did the one thing her divine logic could never compute.

He reached out with his bare hand and caught the blade.

The sound was not of impact, but of reality groaning in protest. Velantra's eyes shot wide with pure, unadulterated disbelief. This was crazy. This was impossibility given form. His flesh should have been unmade.

Instead, the strange blue-purple runes hidden within his soul flared to life. A surge of energy that was neither demonic nor divine, but something older and more fragile, erupted from his hand.

It didn't corrupt the blade's divine energy, it was weaving a temporary, runic bridge that allowed his will to override its sacred bindings. [Primordial Usurpation] flared to life.

The Auroral Edge screamed in his grip, a sound of tortured divinity. The pure white and gold light flickered, sputtered, and was momentarily subdued under a chaotic, shimmering swirl of familiar energy.

Velantra could only stare, her grip on the hilt faltering from the sheer, blasphemous shock of it. "By the Light… how…? That is not possible!"

Caelen wrenched the sword from her grasp. It was heavy, alien, and thrummed with a power that was already starting to rebel against his control. He held it up, examining it with a look of rapturous, predatory awe.

"You rely on a weapon to be your strength," he said, his voice an intimate, chilling whisper. "I am going to take it from you."

He could feel the drain immediately, a slow leaching of something vital from his core. He didn't have long.

He glanced at the blade with his system's sight.

[Auroral Edge - Divine Armament (Primordial-Class)]

[Wielder: Velantra - Usurpation in Progress: 87% Stability]

[WARNING: Foreign essence insufficient for prolonged synchronization.]

He looked from the failing runic energy on his hands back to Velantra. She stood defenseless, her face a mask of stunned betrayal. The fight was over. She was no threat to him now.

The real threat was the weapon slowly rejecting his very soul.

He smiled, a flash of sharp, perfect teeth. The arrogance was back, but now it was focused. He had what he needed.

"Don't worry," he said, his voice dripping with dark promise. "I'll take good care of it."

Velantra stared, her divine composure shattered. The emptiness in her eyes was now filled with a storm of disbelief and violation.

Her weapon, an extension of her very purpose, was held in the hands of the very concept she was meant to eradicate. The hum of the blade was wrong.

"You... you defile it," she whispered, the words barely audible over the weapon's struggling energy.

"Defile is such a strong word," Caelen mused, hefting the sword. It felt less like a tool and more like a captured animal, bucking against an invisible leash. "I'm simply... broadening its horizons."

He took a step toward her, and she instinctively retreated, a gesture so human it seemed so unfamiliar to her.

The [Primordial Authority] radiating from him was a physical pressure, a command for her to kneel, to submit. She resisted, but the will to fight was broken.

High on the balcony, Seralyth's lips curved into the faintest hint of a smile. Interesting, she thought. The runic imprint... a spirit's gift. How interesting.

She had sensed the brief, brilliant flare of spiritual essence from the sacred tree and had suspected its purpose. To see it manifest so directly was a fascinating data point.

In the courtyard, Lucy's fists were clenched. "Idiot," she muttered, though the insult lacked its usual bite. She saw the way he held the blade—not with mastery, but with brutal, overwhelming force.

He was containing a star in his fist, and it was burning him from the inside out. Her instinct screamed that it was a temporary, dangerous advantage. Evelyn just stared, caught between awe and terror.

Caelen's focus remained on Velantra. The essence drain was a cold trickle in his veins, a reminder that his time was limited.

"You're going to tell me everything," he said, his voice losing its playful edge, becoming a blade itself. "About the Goddess. Her plans for Emma. Why she chose her."

Velantra lifted her chin, a last vestige of defiance. "I serve the Light. I do not parley with corruption."

Caelen moved. It wasn't the lightning dash of [Volt Breaker], but something slower, more deliberate and infinitely more threatening.

He simply appeared before her, the point of the Auroral Edge hovering a hair's breadth from her throat. The holy light of the blade fought against the runic energy containing it, sparking and sputtering like angry fireflies.

"You misunderstand," he said softly, his crimson eyes holding hers. "This isn't a parley. This is an interrogation. And you have nothing left to fight with."

He leaned closer, the [Abyssal Charm] in his gaze now a focused weapon, seeking the cracks in her divine resolve. "The question is, how much of your essence inside Emma will I have to burn through with your sword before you start talking?"

He didn't wait for an answer. His free hand snapped out, not to strike her, but to clamp around her wrist.

[Thunderbrand Touch] activated, but he modulated it, not a detonation but a controlled, agonizing current that sought out the core of her angelic power, seeking to overwhelm it not with destruction, but with sensation.

Velantra gasped, a sound that was part pain, part shocked protest. Her wings shuddered. She tried to pull away, but his grip was iron.

"Let's start with something simple," Caelen said, his voice a hypnotic murmur. "The Goddess's name. The real one. Not the title you give the masses."

He increased the current slightly. Velantra's body went rigid, her eyes wide. For the first time, something akin to fear flickered within them.

_

[Is my story pacing good?, mention in the comments]

["If you're enjoying the story, don't forget to drop a power stone or add it to your library—it really helps me keep writing!"]