[Boss Room – Dungeon Core Chamber]
The doors slammed shut behind Adam as he stepped into the vast hall, the click echoing like a coffin lid sealing. The air was thick with the scent of sulfur and blood-soaked stone. Faint, low growls reverberated through the massive cavern—predator breathing.
The Obsidian Warg stood at the far end of the room, pacing atop a raised dais of blackened rock. Its fur was jagged like volcanic glass, deep cracks glowing red with molten heat. From its back trailed tendrils of living shadow, writhing like smoke—alive and hungry.
The Warg's yellow eyes locked on Adam. It didn't attack immediately.
It watched, it sensed something was wrong.
Adam rolled his shoulders casually. "Not gonna charge? Smart."
Then the Warg vanished.
A blur of darkness, it melted into its shadow and zipped through the black lines stretching across the chamber floor. Adam's eyes didn't even twitch.
[Simple Domain: Engaged – Predictive Combat Feed: Real-Time]
"Left," he whispered.
The Warg erupted from the ground behind him, its maw wide open, fangs dripping molten saliva.
But Adam was already moving. His body twisted gracefully, blood bursting from his hand and hardening into a curved blade that slashed across the beast's jaw before it landed.
[Blood Edge: Crescent Carver]
A gash tore across the Warg's obsidian face. It yelped and retreated in a puff of black mist, reappearing on the opposite ledge.
Adam smirked.
"Shadow affinity. Not bad."
The Warg snarled. Its shadows darkened suddenly, as if feeding off the ambient dread of the dungeon itself. They stretched, solidified—taking shape into hound-like constructs, a pack of six. Then it lunged again—this time not alone.
They came from every angle. One from the left. Two from behind. One above, leaping. The others snapped from the shadows themselves, like jaws in the dark.
But Adam was still calm.
He pulsed his aura and blood streamed from his back like wings, forming crimson arcs, then igniting into burning lines of offense and defense.
[Crimson Edge Formation: Multi-Arrows – Scatter Shot Mode]
Dozens of blood-forged arrows launched from his shoulders, whistling through the air like banshees. Each arrow carried not just speed—but poison. Similar to Choso's blood manipulation in the Jujutsu Kaisen world, his blod also carries a toxin extremely deathly to any life form, of course he could adjust the toxicity to his will making it even to the point of being corrosive.
The shadow-hounds evaporated on impact. The Warg caught three in the shoulder, chest, and thigh—and stumbled. Already, its body convulsed.
[Toxicity spreading. Vital signs destabilizing. Subject entering berserker state.]
The Warg threw back its head and howled.
The room darkened.
Literal shadow flooded the space, devouring light. The Warg's body expanded slightly—its muscles bulging, its obsidian armor cracking open to reveal glowing veins. It vanished and reappeared again—faster this time—too fast for most to see.
Adam raised his hand.
[Blood Technique: Flowing Red Scale – Full Body Activation]
Blood hardened into a semi-transparent armor, pulsing red under his skin.
A claw raked across his chest—didn't pierce.
A shadow tendril slammed toward his back—parried with a crescent glaive formed mid-spin.
He kicked off the ground and launched himself skyward, twisting mid-air.
[Piercing Blood: Spiral Fang – Modified Variant]
A lance of spinning blood shot forward, drilling through one of the Warg's legs and pinning it to the ground. The beast roared, shadows lashing out wildly—but Adam danced between them, blades forming and vanishing in flickers, each strike slicing deep and clean.
Still, the Warg wouldn't fall.
Its body steamed with effort. It growled and lunged one last time—driven by fury, by instinct, by desperation.
Adam landed softly on the ground.
His eyes flashed crimson.
"Alright," he whispered, voice low. "Let's end it."
[Domain Expansion: Crimson Abyss – Abyss of One Thousand Cuts]
The world collapsed.
The stone walls, the distant torches, even the shadows themselves melted away. What replaced them was a vast ocean of blood—crimson, endless, and still. The Warg froze, sensing that something had fundamentally shifted.
From the ocean's surface, blades rose.
Axes. Spears. Hooks. Kunai. Chains. And many more, all formed from Adam's blood.
The sky rumbled—and they rained down like divine punishment.
Every step the Warg took was met with a thousand cuts. Every movement caused its body to disintegrate further—its shadow powers failing, overwhelmed by the sheer density of cursed control.
Adam stood at the center of the domain, eyes glowing dimly, expression unreadable.
The Warg, on its last legs, howled once more, defiant—before being swallowed whole by a tidal wave of crimson. And finally the domain shattered.
The chamber returned, quiet and still.
All that remained of the boss was a scorched mark and the faint scent of ash.
[Boss Eliminated. Dungeon Cleared.]
[Time into the fight: 00:10:58]
Adam exhaled, blood retreating back into his body, leaving his coat untouched.
"Not bad," he muttered. "But you were never the threat."
He turned, walking toward the exit calmly.
[Dungeon Gate – Exit Point, Perimeter]
As Adam calmly made his way through the winding stone corridors leading back to the entrance, he passed scattered groups of hunters and heroes navigating their own fights. Most were bruised, bloodied, or dragging behind their squads.
Every time he passed one of them, he spoke with a casual confidence:
"Boss is dead. You can turn back."
Some looked confused, others skeptical—but when they glanced at the blood smeared across Adam's sleeves, or the distant thrum of collapsing energy deeper within the dungeon, they believed him. Or at least, didn't want to test the claim.
After walking for a while he was out of the gate once more, his experiment a success.
Cool, fresh air hit him immediately. It was almost jarring after the oppressive heat of the dungeon.
He barely took two steps from the gate before a man in a black suit intercepted him—clean-cut, ear-piece, tablet in hand. A member of the Japanese Hunter Association.
"Adam Black, correct?"
Adam nodded, gaze flat.
The agent looked him up and down, clearly reading something on his tablet. "You cleared the dungeon alone?"
"I did."
"The Obsidian Warg?"
"Dead. Vaporized, technically."
The agent's face didn't move much, but a small flick of his brow suggested interest. "Mind if I ask what technique you used?"
Adam smiled faintly. "It's a secret."
"…I see." The agent tapped something on his tablet. "We'll be scanning for magical residue. But for now, thank you for your contribution. We'll process the clearance under your hunter ID and transfer the reward to your account"
Adam simply nodded, already turning to walk away.
No need to linger. No need to explain more than he had to.
He stepped through the final outer gate, just past the ring of parked military jeeps and cordons—
"Hey! Wait!"
Adam paused, startled.
He turned.
Coming from one of the side tents, still in his combat gear but with a thick patch over his shoulder, was none other than Izuku Midoriya.
The green-haired young man jogged up, a little awkward with the bandages, but smiling with genuine warmth.
"I—uh—I just wanted to thank you properly," Izuku said, rubbing the back of his neck. "Back there, I was sure I was gonna die. That thing had my number. But you… you just appeared, and—man, you even healed me. That was insane!"
Adam tilted his head, quiet. "You would've done the same."
Izuku blinked. "Maybe… but still. That meant a lot."
There was a pause. A breath of city noise behind them—sirens in the distance, the low rumble of a train passing far off.
Then Izuku spoke again.
"Hey, uh… I know it's kind of sudden, but—if you're ever free, you should come by sometime. My mom always makes too much food, and… well, it'd be nice to share a meal with someone who doesn't immediately talk about power levels or rankings."
Adam raised an eyebrow, amused.
"You're inviting a stranger you met in a dungeon to your house?"
Izuku scratched his cheek. "Yeah. Is that weird?"
"…Not really."
Adam smiled. For the first time in this world with a real one.
"I'll come by," he said. "Soon."
Izuku brightened instantly. "Awesome! I'll text you the address. And hey, if you ever need anything—help with the Association, finding gear, whatever—just let me know."
They exchanged numbers. No ceremony. Just two people, one who'd faced death inside the shadows of a dungeon and the other who merely experiment for his amusement walked out a little more alive.
As Adam turned to leave, he whispered to Nano mentally:
'Mark that kid. I want full reports on any changes in his stats, physical or metaphysical. Especially reactions to the curse blood'
[Affirmative. Monitoring subject: Midoriya, Izuku.]
And with that, he vanished into the waking city—sunlight streaming through skyscrapers, people bustling unaware that something extraordinary had just crossed through their world unnoticed.