The demon king

The dungeon trembled under the weight of sheer destruction. Cracks splintered across the crystalline walls, dust and debris swirling in the violent gusts of power. The echoes of shattered rock and howling winds filled the vast, dark cavern. At the center of it all stood two figures—one a composed strategist, the other a force of sheer chaos.

Oboron, the wielder of mighty elemental magic, stood tall, his piercing gaze locked onto his opponent. His long silver hair flowed with the surging energy around him, his deep blue robes glowing faintly with the power stored within. A calm genius, he exuded an aura of calculated might, his mind always three steps ahead in battle.

Opposite him, the current Demon King stood with an eager grin, her crimson eyes gleaming with bloodlust. Despite her youthful appearance, she carried herself with an undeniable presence—one forged through centuries of war and conquest. Clad in jet-black armor, her enormous demon sword pulsed with unholy power, shifting between forms as though alive.

"I've waited for this moment," she whispered, her voice filled with excitement. "A worthy opponent…"

Oboron remained silent.

He knew words were meaningless to someone who only sought battle. Instead, he raised a hand, and the air crackled as the elements heeded his call.

"Elemental Fusion: Tempest Wrath."

Lightning coiled around his fingers, merging with a fierce cyclone, creating a storm of destruction.

The Demon King's eyes widened momentarily before she grinned wider.

"Demon Sword—Chaos Form!"

Her blade twisted, extending into a jagged mass of shadows and fire. She lunged forward, her speed beyond human perception.

But Oboron was no ordinary opponent. With a flick of his wrist, the air itself hardened into a crystalline barrier. The Demon King's blade clashed against it, sending shockwaves through the dungeon.

She twisted mid-air, landing effortlessly on her feet. "Good reflexes. But how long can you keep up?"

Oboron remained unfazed. He raised his other hand, and the ground beneath her erupted into molten lava. Without hesitation, she activated her extreme speed, dashing across the battlefield as her sword absorbed the fiery energy.

"Demon Sword Art: Infernal Severance!"

She swung her blade, unleashing a crescent of hellfire. Oboron countered instantly.

"Elemental Shift: Ice Fortress."

A massive wall of ice emerged, meeting the flames head-on. Steam exploded into the air, obscuring their vision momentarily. But the Demon King wasn't one to wait. She tore through the mist, aiming straight for Oboron's heart.

"Rune Blade: Spirit Slayer!"

Her sword shimmered, its new form glowing with a sinister aura—designed to cut even untouchable souls. The moment it connected, Oboron felt a deep, unnatural pull on his magic.

"Tch." He leaped back, gripping his arm where the sword had barely grazed. His MP had dropped significantly.

The Demon King smirked. "Surprised? This blade steals the life force of anything it touches. You won't last long."

Oboron closed his eyes for a brief second, recalibrating his approach. Then he spread his hands wide.

"True Elemental Mastery: Celestial Cascade."

The entire dungeon responded. Water from underground streams surged upwards, forming massive tidal waves. The air condensed into razor-sharp gales, while the stone walls trembled, sending spears of rock toward the Demon King. Lightning crackled in the skies above, waiting to strike.

Her grin faded for the first time. "So you're that strong… Excellent."

She planted her sword into the ground. "Demonic Domain: Abyssal Consumption."

A black void expanded from her feet, devouring everything it touched. The elements that Oboron had summoned were sucked into the abyss, nullified entirely.

Oboron's expression hardened. She was countering every move he made. He had to change tactics.

"You rely too much on brute force," he said calmly. "But power alone is not enough to win."

He stomped the ground, and instantly, intricate glowing patterns spread beneath their feet. The dungeon itself responded to his command.

"Sealing Art: Elemental Sanctum."

The abyssal darkness began to recede, suppressed by the ancient magic he had activated. The Demon King's sword trembled, resisting the pull of the sanctum.

"What is this?!" she snarled.

"A battlefield of my own making," Oboron replied. "In this space, raw power means nothing. Only skill will determine the victor."

Finally, they stood apart, panting.

The Demon King's armor was cracked, her sword slightly chipped. Oboron's robes were tattered, his reserves of magic nearly depleted.

She wiped the blood from her lip and smirked. "You're the first in centuries to push me this far."

Oboron didn't respond. He merely watched, calculating.

The Demon King exhaled, then stepped back. "I'll let you live… for now. Fighting you has been exhilarating. I won't waste it by killing you in such a dull moment."

Oboron narrowed his eyes. "You think you can simply walk away?"

She chuckled. "Became my pet… I'll give you a lavish life if you will."

"Lavish life is not what I want… I'm here to protect something from evil doer like you. Demon's like you must not exist in this world."

The Demon King let out a crazed laugh. "Fine! Then I'll just have to cut you down the old-fashioned way!"

She charged, her sword reverting to its purest, deadliest form. Oboron met her head-on, his hands glowing with raw elemental energy. The air rang with the sound of their clash—sword against magic, speed against intellect.

For hours, they fought. The dungeon bore the scars of their battle—crystals shattered, the ground split apart, and magic lingered in the air like an aftershock. But neither side relented.

Finally, after countless strikes, the Demon King revealed her true nature.

With a wicked grin, she severed Oboron's arms in a single swift motion. His breath caught in his throat, his body frozen in shock. The moment felt surreal as he staggered back, blood pouring from the fresh wounds.

Her sword, now pulsating with an ominous glow, found its mark. The blade embedded itself into his chest, the weight of the final strike crushing his last ounce of resistance.

"…I'm defeated?" he muttered, barely able to speak.

The Demon King leaned in, her crimson eyes gleaming in the dim light. "You are."

A twisted smile played on her lips as she drove her sword deeper, feeding it with his very essence. The demon sword, hungry for power, consumed him bit by bit, his body dissolving into raw energy, absorbed into its ever-growing darkness.

The dungeon fell silent. The battle had ended, and the Demon King stood victorious, her sword now radiating with newfound power.

She exhaled, a satisfied smirk on her face.

 "Now… onto the chosen one… My prey… The Crystal Dragon."