I Was Reborn in Another World, But I Awoke Inside a Corpse

Chapter 130: Devourer of the Unbroken Flame

The abyss whispered in no tongue known to men.

Shadows slithered along the roots, and the very air quivered under the pressure of Beelzebub's presence. Isaac stood still at the edge of the massive chasm-like nest, staring at the grotesque giant that oozed hunger with every breath.

No need for bravado now.

He activated the skill quietly.

[Soulpiercer Sight – Rank A]

The world pulsed.

His vision fractured into layers of truth, unraveling the veil of presence and composition that wrapped around the monstrous Sin before him.

[TARGET IDENTIFIED: BEELZEBUB – SIN OF GLUTTONY]

Species: Abyssborn Archdemon

Class: Sin Incarnate

Authority: Devouring Dominion

Skills: [Error: Classification Restricted. Inspection Blocked.]

Status:

Strength: 11,290

Agility: 9,080

Endurance: 12,100

Intelligence: 6,944

Willpower: 6,380

Charisma: 3,980

Luck: [ERROR – NULL SIGNATURE]

Isaac's breath caught.

'Higher Endurance than mine. Higher Strength. Even Agility…'

And worse—

[All Skills Blocked from Viewing]

'He's hiding his skillset. Even [Soulpiercer Sight] can't get through. That's… new.'

Beelzebub chuckled—and it felt like the sound crawled up Isaac's spine from the inside out.

"Peeking, are we? Your sight is bold. But you don't need to see what's already inevitable."

Isaac took a single step forward.

"I've faced inevitability before. It bleeds just fine."

The earth cracked under his footfall.

[Phantom Legion – Rank EX] – Activated

A chorus of ghostly weapons erupted around him—swords, scythes, halberds, and chains—each one etched with celestial memory, each one burning with fragmentary will.

Beelzebub spread his arms wide.

"Then let us feast, flamebearer."

The abyss exploded.

Beelzebub lunged—faster than a monster of his size had any right to move. A swarm of disembodied maws and fanged shadows poured from his back like wings made of appetite. They screamed and snapped, gnashing through space itself.

Isaac didn't dodge.

He willed.

[Phantom Legion] weapons surged to meet the swarm—intercepting, shielding, countering. Several blades shattered. More took their place.

Still—

Beelzebub crashed into him.

Isaac was hurled across the cavern wall, slamming into black stone hard enough to crater it. Pain flared through his ribs.

HP dropped—fast.

HP: 100,530 → 87,240

Isaac's eyes narrowed. He stood up without a word.

Beelzebub laughed. "You bleed, little heir. I thought you were more."

Isaac spat blood, then lifted a finger.

A single spectral greatsword from his Legion hovered over Beelzebub's head—and dropped.

Beelzebub turned—

Too late.

The blade pierced his shoulder—deep.

Green-black blood splashed across the floor.

Isaac stepped forward again. Silent. Focused.

This wasn't a duel.

It was warfare.

Their powers collided again—light and rot, silence and hunger.

Isaac struck with relentless precision, blades dancing like intelligent beasts. Beelzebub responded with chaos incarnate—warping reality around him, absorbing ambient mana to fuel surges of corrupted force.

For every wound Isaac dealt, Beelzebub regenerated twice as fast.

For every inch Isaac pushed forward, the abyss swallowed his footing.

And yet—

He didn't retreat.

[Essence Efficiency – Rank EX] now surged through his chosen skill: [Phantom Legion]. His mana cost was negligible. His rhythm perfect. His pressure relentless.

Even Beelzebub began to step back.

Just once.

"You burn… brighter than the others," the demon hissed. "Like her flame—like Seluriel."

Isaac's eyes narrowed.

"She gave me her final memory."

[Moonflame Rebirth – Rank EX+] – Aura Surge Triggered

Flamebrand Field activated.

Suddenly, the air changed.

Beelzebub howled.

Magic twisted near Isaac began to wither—devour-based rituals cracking. Mind-effect corruption recoiled.

Isaac walked forward, step by step, as the abyss shook.

HP: 76,440

MP: 31,920

Phantom Legion: 14 weapons active

This wasn't a victory yet.

But it was balance.

And Isaac—undeterred—was the first thing in millennia to tip the scales against the Sin of Gluttony.