The System’s Primal Heir

Episode 7: The Black Market Gamble

"My father knows I don't stop until I have the truth," Seraphina hissed, her breath turning to mist between them as she struggled against his iron grip.

"Then he knows he raised a daughter who doesn't know when she's outmatched," Leo replied, his dual-toned voice vibrating through her bones.

He tightened his hold, the gray, stone-like texture of his skin grinding against her silver bracers. The air around them began to crackle, a war between her freezing S-Rank mana and the devouring heat of his Primal core.

"You're hurting me, Leo," she whispered, her eyes searching his for a flicker of the boy who used to carry her guild's bags.

"Leo is dead," he rasped, shoving her back into a cluster of frozen stalagmites. 

The ice shattered on impact, sending a cloud of white dust into the air that obscured his silhouette. Leo didn't wait for her to recover; he turned and sprinted toward a narrow fissure in the cavern wall that led to the lower drainage pipes.

"Don't let him escape!" Seraphina’s voice echoed behind him, followed by the sound of rapid footsteps and the hum of mana-blades being drawn.

[Warning: Mana core destabilizing. Impurity detected in glitched essence.]

"I can feel it," Leo groaned, stumbling as a sharp, acidic pain flared in his chest. "The black slime... it’s rotting me from the inside."

[The vessel is cracking, little lamb,] the Ancient Echo resonated in his mind, sounding more amused than concerned. [You consumed a glitch, a broken piece of the world’s code.]

"Then tell me how to fix it before I dissolve into a puddle of gray mud," Leo commanded, sliding down a rusted pipe into the darkness of the city's underbelly.

[You require Blood Essence,] the Echo replied. [Pure, concentrated mana distilled from the hearts of those who have survived the slaughter. You need the nectar of the strong.]

Leo hit the wet floor of the sewers, coughing up a mouthful of black, viscous ichor that hissed when it touched the water. He leaned against the damp brickwork, his human disguise flickering like a dying lightbulb.

"Where do I find something like that without alerting the Association?" Leo asked, wiping his mouth with a shaking hand.

[The dregs of humanity always gather in the dark,] the System noted. [Follow the scent of iron and desperation.]

Three hours later, Leo stood before a nondescript steel door in the basement of a crumbling tenement building in the Outer District. The rhythmic thud of bass and the muffled roars of a crowd seeped through the metal, vibrating against his palms.

"Password or a bribe, kid. I don't care which," a massive man with a cybernetic eye growled, blocking the entrance.

"I’m here for the 'Essence' prize," Leo said, his voice disguised by a heavy scarf and a low-brimmed hat.

"A lot of people are here for that, but most leave in a body bag," the bouncer laughed, his eye whirring as it scanned Leo’s copper ID tag. "Zero, huh? F-Rank? You’re either the bravest man in the city or the most suicidal."

"Does it matter which one I am if I have the entry f*e?" Leo asked, tossing a small bag of mana-crystals he had harvested from the slimes onto the table.

The bouncer weighed the bag, his expression shifting from amusement to greed. "Go on in. The ring is in the back. Just try not to get blood on the front row; the VIPs hate the smell."

Leo stepped into the arena, the air thick with the scent of sweat, cheap tobacco, and the metallic tang of blood. In the center of the room, a sunken concrete pit was surrounded by hundreds of shouting gamblers, their eyes fixed on two hunters tearing into each other with savage intensity.

"Next match: The Rookie 'Zero' versus the Bone-Crusher!" a slick-haired announcer screamed over the intercom.

"You look like you're about to faint, kid," a skinny man in a worn leather vest said, leaning against the railing next to Leo. "You sure you want to go down there? Bone-Crusher hasn't left a survivor in three weeks."

"I only need one thing from him," Leo replied, his eyes locked on the prize displayed in a reinforced glass case above the ring.

A vial of deep, crimson liquid sat on a velvet cushion, glowing with a light so intense it seemed to pulse like a beating heart. It was the Blood Essence, the distilled power of a dozen A-Rank monsters, a treasure that could stabilize his core—or kill him if his body couldn't handle the surge.

"The prize is mine," Leo muttered, stepping onto the rusted ladder that led down into the pit.

"Kill him, Crusher! Break his ribs!" the crowd roared as Leo’s opponent entered from the opposite side.

The Bone-Crusher was a mountain of a man, his skin covered in ritualistic scars and his arms thick with reinforced obsidian plates. He looked at Leo with a sneer of pure contempt, cracking his neck with a sound like a snapping branch.

"An F-Rank? Is this a joke?" the giant bellowed, slamming his fists together to create a shockwave of mana. 

"The joke is that you think your size matters," Leo said, his gray skin beginning to ripple beneath his clothes.

The fight began with a blur of motion as the Bone-Crusher lunged, his obsidian-clad fist whistling through the air where Leo’s head had been a second before. Leo moved with the fluid, unnatural grace of the Primal, his feet barely touching the concrete as he circled his prey.

"Stand still and die like a man!" the giant roared, swinging a massive leg in a sweeping kick.

Leo caught the leg, his fingers sinking into the obsidian plating as if it were soft clay. The crowd went silent as the F-Rank rookie held the three-hundred-pound giant in place with a single hand.

"You have a lot of mana in those bones," Leo whispered, his eyes flashing a sudden, lethal red. "It’s a shame you don't know how to use it."

Leo slammed his palm into the Crusher’s chest, activating the Primal Siphon. The giant didn't even have time to scream before the mana was ripped from his body, his obsidian plates shattering and falling to the floor like glass.

"Winner: Zero!" the announcer shouted, his voice trembling with disbelief.

Leo didn't wait for the applause; he climbed out of the pit and headed straight for the glass case. He reached out to take the vial, but a heavy hand clamped down on his shoulder, the grip familiar and suffocating.

"That’s a very specific way of redirecting kinetic energy," a deep, rasping voice said behind him.

Leo froze, his heart dropping into his stomach as he recognized the mana signature of the man standing behind him. He turned slowly, coming face-to-face with a tall, broad-shouldered hunter with a jagged scar running across his nose.

"Do I know you?" Leo asked, keeping his voice as flat and robotic as possible.

"I spent three years using your back as a footstool in the Thorne Guild dorms," the man sneered, his eyes narrowing as he looked at Leo’s covered face. "I’d know that pathetic, shivering stance anywhere."

The man reached out and ripped the scarf from Leo’s face, exposing his features to the harsh, flickering lights of the arena. The crowd gasped, but the man only laughed, a cold, cruel sound that made Leo’s blood boil.

"Well, look at that," the champion of the ring said, his hand moving toward the hilt of a massive broadsword. "The dead little brother has finally come home to play."

"Jax," Leo whispered, his name tasting like poison on his tongue. 

"I thought Marcus finished you off in the Abyss," Jax said, stepping into the light to reveal the Thorne Guild emblem tattooed on his neck. "But I guess I’ll just have to collect the bounty myself."

Leo looked at the vial of Blood Essence, then back at his old bully, his shadow beginning to grow and twist on the floor between them.

"You always were a slow learner, Jax," Leo said, his voice dropping into a guttural growl. "Are you ready to be my next meal?"