Black Wing Defeated!

Levi burst through the wall of monsters that surged forward to block him from both sides. The impact hit him like a truck, but the power he wielded through his demonic transformation was too great to be pushed back. 

Copies of the black wing clawed at him, teeth sank into his flesh, but Levi pressed forward, indifferent to their attacks and futile attempts to stop him.

The Black Wing of Lunacy, the creature he had initially faced, was on the brink of evolving into the Nascent-Fallen rank, and somewhere during the battle, it had completed its evolution. 

But for the monster's misfortune—or Levi's fortune—most of its power had been spent on the transformation, leaving it unadjusted to its new form.

On top of it, when the Black Wing used its unique skill to create a flock of copies, its strength was divided, reducing each clone to no more than a Nascent-Essence or Inept-Essence level. In contrast, Levi, in his demonic transformation, had reached near-vile rank. 

There was no stopping him now.

Levi tore through the flock, unstoppable, until he came face to face with the true Black Wing of Lunacy.

"Hiding at the back? Is that all you've got?" Levi roared, his voice dripping with disdain.

Surprisingly, the Black Wing responded, its multiple eyes rolling wildly, unfocused and confused. Yet even in its frenzied state, its survival instinct flared. 

The creature lashed out with a grotesquely elongated arm, the limb stretching and warping unnaturally. Levi dodged the strike, noting how the movement lacked precision. The Lunacy was working, throwing the Black Wing off-balance, preventing it from fully utilizing its power.

Seizing the moment, Levi closed the distance, channeling his remaining essence into his right arm. Dark energy swirled around his clenched fist as he unleashed a thunderous uppercut, the force of the blow shaking the air around them. His fist collided with the creature's beak-like jaw, the impact releasing a shockwave that rippled through the battlefield.

That was the limit of the Black Wing- the movement it took Levi's attack, it could no longer maintain its skill causing the fake Black Wings to dissolve into gaseous essence.

Even then, Levi's attention remained fixed on the true Black Wing. The monster's head snapped back, its body lifted off the ground by the force of the punch. But Levi wasn't done. As the creature staggered, he pressed the attack. 

His claws gleamed in the crimson light as he unleashed a relentless flurry of strikes, each one targeting the creature's vital points. Whether those points were effective or not, he didn't care.

The Black Wing's shape-shifting ability activated instinctively, its body warping and twisting in an attempt to avoid the worst of the damage. 

But the lingering effects of Lunacy made its transformations erratic, incomplete. 

Levi's assault continued, brutal and unrelenting. Each strike tore through the Black Wing's defenses, shredding flesh, and splintering bone. The monster's shrieks of agony filled the air, desperate and deafening.

In a final, decisive blow, Levi drove his fist deep into the Black Wing's torso, feeling something give way beneath his claws. His hand closed around a pulsing mass of condensed essence—a demonic core.

The creature's eyes widened, filled with terror. It knew, as did Levi, that even without its heart, losing its core meant death.

"You're finally showing the expression I wanted," Levi growled, locking eyes with the monster. A cold smile tugged at his lips.

Panic seized the Black Wing as it thrashed, struggling to dislodge Levi. But Levi was relentless, his grip unyielding. He had come too far, fought too hard, to falter now. Summoning the last reserves of his strength, he channeled every ounce of his essence into his arm.

"You're dead," he snarled, his voice distorted by the demonic transformation. With one final surge of power, he crushed the core in his fist.

A blinding flash erupted from the core, forcing Levi to shield his eyes as a deafening screech tore through the battlefield. 

When the light faded, Levi opened his eyes, and the Black Wing of Lunacy lay motionless.

It was over. 

He had won.

Exhaustion slammed into Levi, his demonic transformation unraveling as the last of his essence drained away. His body returned to its human form, battered and broken, barely able to stand as the adrenaline faded.

Through blurred vision, Levi noticed something materializing in front of him.

[You have killed a Nascent-Fallen monster- Black Wing of Lunacy.] 

[You have gained an artifact…]

But Levi was in no state to read them. As the edges of his consciousness darkened, another notification flashed.

[Your trait ability- Domination is activated!]

Then, everything went black, and Levi knew no more.

***

Inside Levi's mind—within the darkness that clouded his consciousness—sat a single entity, eerily similar to him, observing everything through Levi's eyes. The only visible difference between them was in its gaze—its eyes were ablaze with crimson flames, burning with an infernal rage.

It watched intently as Levi faced the Black Wing of Lunacy, fighting with everything he had. When Levi activated his demonic transformation, the entity noticed something new. This time, it didn't get the chance to take control. Levi had become strong enough to withstand the power of transformation.

"A pity," the dark twin thought, continuing its silent observation. 

As the battle raged on, the Black Wing multiplied itself, catching Levi off guard for a moment.

The entity's fiery eyes gleamed, curious to see how Levi would respond. When Levi unleashed his Lunacy ability, the twin's expression soured. It wasn't the skill itself that bothered it but how Levi used it.

"Tch, he has no idea how to wield it," the twin muttered to itself, frustration brewing beneath its calm exterior.

As the battle reached its climax, Levi unleashed every last drop of his power, completely draining his essence. The Black Wing of Lunacy crumbled under the assault, and with its death, Providence spoke.

An artifact materialized from the essence of the slain Black Wing, but Levi's vision began to blur. 

The last remnants of light in the void of darkness faded, as Levi was pulled into unconsciousness. Yet, the dark twin noticed something in that short movement—a shift. 

Levi's new trait ability was activating. The entity's frown twisted into a satisfied grin.

"Finding a Dominion so soon... lucky bastard," it muttered as Levi's eyes finally closed, leaving the twin alone in the darkness once more.

---***---