Dungeon Corpse Stacker: I Absorb Everything to Become Ominous Monarch

The skies over Sector 1 were dead silent under a heavy, ash-gray blanket of clouds.

Where the grand 50-story National Hunter Association Tower once stood as a symbol of human authority, now lay a cratered wasteland of shattered reinforced concrete, bent steel beams, and scorched earth. The surface level of the Capital Sector was completely abandoned by human forces, patrolled only by the silent, glowing sentinels of Renan’s Shadow Legion.

However, two hundred meters directly beneath the central foundation of the ruined tower, the ground vibrated with a continuous, high-frequency hum.

Around the entire perimeter of the Association ruins, three massive, dome-shaped energy projectors had erupted from the bedrock, casting a shimmering, three-foot-thick barrier of iridescent silver light over the surface entrance leading to the subterranean levels. This was the Class-SS Relic Defense Array—an ancient, spell-reinforced barrier powered by three primary mana cores, capable of deflecting direct tactical nuclear impacts and high-tier elemental magic.

Inside the automated command room of the outer perimeter, fifty heavily armored Executive Enforcers—the personal, high-tier private guard of President James—stood behind reinforced firing slits. They held heavy anti-mana heavy rifles and spell-linked plasma cannons, their visors locked onto the deserted plaza outside.

”Keep your eyes on the perimeter!” the Enforcer Captain shouted through his tactical comms, cold sweat dripping down his neck inside his helm. ”President James and the Three Pillars are finalizing the charge on the Ancient Relic Weapons in Vault Level 4! We only need to hold this surface barrier for forty-eight hours!”

”Captain!” a scanner operator yelled, pointing a trembling finger at his thermal monitor. ”Atmospheric pressure dropping rapidly above the plaza! High-density energy signature descending!”

BOOOOOOM!

The dark gray clouds directly above the Association plaza were violently torn apart as the colossal, five-hundred-meter spectral form of the Shadow Dragon Leviathan descended from the upper atmosphere. Its massive shadow blotted out the dim sunlight, and its golden, burning eyes locked onto the glowing silver barrier below.

Standing at the very tip of the dragon’s snout, his long black coat billowing in the turbulent descent gale, was Renan.

His black Monarch armor pulsed with dark golden runes, and the sheer density of his forty-one thousand seven hundred physical stat points created a localized gravitational vacuum around his body that caused the surrounding rubble to float into the air.

Behind him on the dragon’s back stood Shadow General Ignis, Shadow Commander Gregory, and Shadow Commander Carlos—the three heavy titans of the Shadow Legion.

[Target Identified: Class-SS Relic Defense Array]

Structure Type: Ancient Spell Barrier (Triple Core Network)

Defense Capacity: Absolute Kinetic & Elemental Reflection (Tier-SS)

Barrier Status: Active (100% Core Energy)

”A triple-core relic barrier,” Renan said softly, his layered, double-toned voice floating through the gale-force wind. ”President James built his shelter well.”

”My Monarch,” Shadow Commander Carlos stepped forward, his new obsidian-rock armor clanking like grinding boulders as he raised his massive dark war-hammer. ”Allow me to test the density of their steel. My Titan Wall Domain can break earth-based runes.”

”No,” Renan said calmly, stepping off the dragon’s snout and floating down through the sky until his boots landed softly on the concrete fifty paces from the shimmering silver wall. ”A barrier powered by ancient relics cannot be broken by ordinary force. It must be overwhelmed at the foundational level.”

Inside the outer bunker, the Enforcer Captain gasped as he watched Renan walk calmly toward the barrier alone. ”Fire! Fire all heavy plasma turrets! Don’t let him touch the barrier array!”

BOOM! BOOM! BOOM!

Twenty automated Class-S plasma cannons mounted along the perimeter wall erupted simultaneously, unleashing a concentrated hail of searing blue plasma bolts straight toward Renan.

Renan didn’t even raise a hand.

Shadow Commander Gregory materialized instantly in front of Renan, slamming his massive broadsword into the earth. Fortress Domain activated instantly, creating a hundred-foot black wall of kinetic reflection that caught every single plasma bolt, redirecting them backward to detonate the cannon turrets into flaming shrapnel.

Renan stopped three paces from the shimmering silver barrier. He raised his gloved right hand, extending his palm toward the glowing spell-runes floating inside the energy wall.

[Skill Activated: ’Sovereign’s Mana Drain & Vector Compression’]

Target: Class-SS Relic Defense Array Primary Node

Action: Forced Mana Inversion

SWIRL!

Viscous, midnight-black miasma erupted from Renan’s palm, wrapping around the silver barrier like thousands of hungry, dark serpents. The ancient spell-runes inside the barrier began to flicker erratically as Renan’s Monarch core forcibly inverted the mana flow, draining the energy directly out of the barrier’s primary core and absorbing it into his own system!

[System Alert: External Relic Energy Absorbed!]

Mana Restored: +12,000 Points

Barrier Structural Integrity: 100% $\rightarrow$ 40% $\rightarrow$ 0%

CRACK-SHATTER!

The three-foot-thick Class-SS Relic Barrier, designed to withstand nuclear annihilation, cracked like brittle ice and shattered into millions of fading silver particles!

”The barrier is down! The barrier is down!” the Enforcer Captain screamed hysterically into his comms. ”Fallback to the Vault Elevator Shaft! Fall back—”

”Your retreat was denied before you arrived,” Shadow Commander Rebecca’s venomous voice whispered from the darkness directly behind the Captain.

SLASH!

Twin green void blades flashed in the dark command room. In less than two seconds, the Enforcer Captain and his top ten officers dropped to the floor, their throats severed before they could pull their sidearms.

Outside, Renan stepped over the shattered projector housing, looking down into the massive, dark elevator shaft that plunged two hundred meters into the bedrock below.

Deep within the shaft, the heavy iron blast doors of Vault Level 1 groaned as automated defense systems locked down the subterranean corridors.

Renan stood at the edge of the abyss, his glowing golden eyes piercing through two hundred meters of darkness.

”Ignis. Gregory. Carlos,” Renan commanded, his voice echoing down the dark shaft like rolling thunder. ”Pave the way.”

”By your command, My Monarch!”

The three Shadow Commanders, followed by three thousand heavy Shadow Knights, plunged straight down into the pitch-black shaft, launching the vertical assault on the Class-S Apex Vault.