Demon Slayer: Cambion Heritage

The forest felt different tonight—alive, maybe even more alive than usual. The night air carried the scent of earth and pine, the gentle rustling of leaves filling the silence. But beneath it all, something darker lurked. Something that made the hairs on the back of King's neck stand at attention. The air itself felt thick with the presence of death.

King's eyes, glowing crimson in the moonlight, scanned the landscape. His hand rested on the hilt of his Nichirin scythe, the weapon now familiar against his back, as if it had always belonged there. His fingers twitched, itching for a fight. The night had been too quiet for too long.

"Guess it's time to let loose," King murmured, the words barely a whisper against the night. His voice, though soft, was filled with an edge that was unmistakable. A hunger for something more than just survival—something more than simply existing in this world. The beast inside him stirred, yearning for blood. For battle.

He had been holding back while at Tanjiro's. Sticking to human form to not scare them. But the bloodlust was gnawing at his edges. The scythe, his blood demon art, and his Cambion powers—they were all part of him. But so was this desire to help. To heal. To give Tanjiro a hand when the time was right.

"That time isn't now, though," he muttered, remembering Tanjiro's bright eyes and Nezuko's cursed innocence. "The kid's gotta learn to walk his own path. But I'll be there when he falls. I'll be there."

The Village of Carnage

King's senses went into overdrive as the stench of blood and rotting flesh hit him like a wave. The smell was unmistakable—the work of a demon. His lips twisted into a grimace as he stalked deeper into the forest. His footsteps were barely audible against the soft ground, each step more measured than the last. His eyes narrowed. The demon wasn't far.

His mind flashed back to his earlier thoughts about remaining under the radar. About not disrupting the flow of things. About sticking to the shadows. But this… this was different. This was a fight that would test him—would remind him of what he was capable of.

The demon was waiting for him.

The small village, once a place of warmth, was now reduced to rubble. The few homes that remained were nothing more than charred ruins, smoke still curling into the air. Bodies lay scattered around the village square like discarded ragdolls. The dead had been left behind, their eyes staring blankly at the stars, their blood slowly seeping into the earth.

At the center of this carnage stood a massive demon. It towered over King, its frame grotesquely swollen with muscles that seemed to ripple with raw power. Its face was a twisted mockery of humanity, a wide grin splitting its features, exposing rows of jagged teeth. Its yellow eyes gleamed with hunger, its claws dripping with fresh blood.

King felt a chill run down his spine—not from fear, but from the raw, animalistic energy that the demon exuded. It was a force of nature, a living embodiment of destruction. But King wasn't afraid. No, he was more than ready for this. He had been itching for a fight, and this demon was the perfect opponent.

The demon's eyes flicked toward him, narrowing as it saw King stepping into the clearing. Its lips curled into a sinister grin. "Another demon? No, wait… You don't smell like Muzan's. What are you?"

King stood tall, his scythe glinting under the moonlight. He had no intention of explaining himself. "I'm what you're gonna regret messing with."

The demon bared its teeth, its voice a low growl. "I'll enjoy breaking you."

The Clash of Titans

The demon lunged, its massive claws slashing through the air with terrifying speed. King was ready. With a smooth motion, he pivoted on his heel, sidestepping the attack just as the claws ripped through the space where he'd been a second earlier.

"Nice try," King muttered, twirling his scythe in a fluid, practiced motion. He swung it horizontally at the demon's exposed side, the blade flashing through the air with precision. The demon hissed as the scythe cut into its skin, leaving a deep gash along its ribcage. But even as it bled, the demon's body began to pulse, its wounds healing almost immediately.

"Shit," King muttered under his breath. "Regeneration. Guess I gotta step it up."

The demon roared, more enraged than pained. It charged again, this time faster than before, its claws swiping through the air like lightning. King barely managed to block the first strike, his scythe screeching as it collided with the demon's claws.

But this time, the demon wasn't done. It threw a barrage of attacks, each one more furious than the last. King's movements were a blur, his Cambion form giving him agility beyond what the demon could keep up with. He dodged, parried, and blocked with calculated ease, his senses fine-tuned to every move the demon made.

His heart raced with the thrill of the fight. This was what he had been waiting for—the chance to test his limits. His Cambion blood thrummed with power, and the more the fight raged, the stronger he became.

"Is that all you got, big guy?" King taunted, his voice dripping with sarcasm.

The demon snarled, its eyes glowing brighter as it began to shift. The air around it crackled with dark energy, and its body began to change. Spikes sprouted from its back, its claws growing longer, sharper. Its skin became thick and armored, its form more monstrous with each passing second.

"You're too weak," the demon growled, its voice deepening. "I'll break you. I'll tear you apart."

King's eyes narrowed, his mind working quickly. "Yeah, we'll see about that."

Strategy and Power

The demon charged again, but this time, King was ready. As it swung its massive claws, King ducked and rolled, dodging the attack by mere inches. The demon's claws tore through the ground where King had been just a moment before, sending dirt flying in all directions.

King's Cambion dragon breath flared to life as he exhaled a torrent of crimson flames directly at the demon. The flames spiraled through the air, surrounding the demon in a wall of fire. The creature screamed, its flesh sizzling and blackening as the flames consumed it.

But even as the flames ate away at its body, the demon didn't stop. It reached out with its clawed hand, swatting at King with terrifying force. King spun just in time, his scythe cutting through the demon's arm. The demon howled in pain, but its healing abilities kicked in immediately, the wound sealing over within moments.

King clenched his teeth, frustration creeping in. "Damn regeneration. I need something that'll stick."

His mind raced, searching for a solution. Then, as if in answer to his thoughts, the symbols on his eyes began to glow brighter, pulsating with energy. The words "The Strongest Demon" flashed in his vision.

"Guess it's time to bring out the big guns," he muttered.

He focused on his Cambion blood, pulling every ounce of his power into the scythe. The blade vibrated with intensity as it absorbed the energy, and King swung it once more—this time, the power behind the strike was immeasurable.

The scythe cleaved through the demon's head with a single, fluid motion. The demon's body collapsed to the ground with a sickening thud, its severed head rolling a few feet away.

King stood there, panting heavily, as the demon's black blood pooled around him. The battlefield was silent now, save for the sound of his breath.

"Strongest demon, huh?" King mused, his voice low. He ran a hand through his hair, feeling the power surge through him. "I guess I earned that title."

The Aftermath and the Thoughts of a Male

King wiped the blood from his scythe, his gaze distant as he surveyed the aftermath of the battle. It was brutal, but it was over. He had defeated the demon, and yet, something tugged at him—a lingering thought, a curiosity that refused to be ignored.

His mind wandered briefly, and then, with a smirk, he thought about Mitsuri Kanroji, the Love Hashira. He had heard the rumors. Her vibrant personality, her strength, her dedication to the cause and damn that BODY. Was she single at this point in the timeline?

"Huh. Wonder if she's still single…" King mused, as if the thought hadn't just popped into his head. He chuckled to himself, shaking his head. No time for that right now. I'm not here for romance. Not yet, anyway.

The weight of the fight, the surge of power, all of it settled inside him. He could feel the pull of his connection to the world he now inhabited. The battles, the emotions, the choices he'd make.

"I'll be back, Tanjiro," King whispered, before turning and disappearing into the shadows. "When you need me, I'll be there."