Extra's Revenge: Reincarnated As A Slave-Chapter 151: Nephilim

The journey through the Labyrinth’s passages was surreal.

The five masked figures moved with silent efficiency, guiding Rey through corridors he would never have found on his own. Their path seemed to defy the Labyrinth’s chaotic geography—passages that should have led in circles instead opened into new territories, chambers that appeared dead-ended revealed hidden exits when the Keepers approached.

Rey followed in silence, conserving his remaining Ether while his enhanced perception struggled to map their route. The mystical distortions from the swamp gradually faded as they ascended, allowing his capabilities to slowly return to normal function.

After what felt like hours of walking, the central figure—who seemed to lead the group—stopped before an unremarkable section of wall. The ancient stone showed no distinguishing features, no marks suggesting anything special.

The figure placed both hands against the surface and spoke words in a language Rey didn’t recognize. The sounds carried mystical weight despite being incomprehensible, resonating with power that suggested deep significance.

The wall rippled like water, then dissolved to reveal a hidden passage beyond.

"Through here," the central Keeper said, gesturing for Rey to follow.

The passage led to a massive fortified chamber—clearly constructed long after the Labyrinth’s original architecture, but still ancient by any reasonable measure. Defensive wards lined every surface, their mystical signatures suggesting capabilities that would make breaching this position nearly impossible.

An outpost, Rey recognized. A forward defensive position protecting something deeper within.

The five Keepers finally stopped in what appeared to be a central meeting chamber. Then, as one, they reached up and removed their featureless white masks.

Rey’s breath caught as their faces were revealed.

All five were half-breeds like himself, bearing the distinctive features that marked mixed Nether and Aether heritage. Purple eyes in varying shades, hair colors that defied normal genetics, facial structures that blended characteristics from both ancestral lines.

The central figure was male, perhaps in his thirties, with silver-white hair and eyes that shifted between purple and deep blue.

His features carried authority earned through experience rather than age.

"I am Kael," he introduced himself, his voice no longer carrying the mystical distortion that had obscured it earlier. "Leader of this outpost and Keeper of the Southern Passages."

The female who’d spoken earlier removed her mask to reveal a woman in her twenties with midnight-black hair streaked with purple. "I am Sera. Second of this outpost."

The others introduced themselves in turn—Marcus, Helena, and Dain. All bearing the genetic markers that identified them as descendants of mixed heritage.

"You’re all half-breeds," Rey stated, the observation carrying implications he was only beginning to process.

"We are Nephilim," Kael corrected, the term carrying pride rather than shame. "Descendants of those who were sentenced to the Labyrinth of Darkness over a thousand years ago, during the great purges when both Nether and Aether societies decided our kind had no place in their ordered worlds."

He gestured broadly, encompassing the fortified outpost around them.

"Our ancestors were cast into these depths to die, abandoned by both sides of their heritage. But they survived. They adapted. They built a civilization in the darkness, and we are their legacy."

Rey absorbed this information with growing fascination.

A hidden society of Nephilim, surviving for a millennium in the Labyrinth’s hostile environment? The strategic and mystical implications were staggering.

"You said I was supposed to be your salvation," Rey recalled. "What did you mean?"

Kael’s expression became more intense, almost reverent.

"Our ancestors left behind prophecies—visions of the future passed down through generations. One of the most significant describes a young Nephilim who would enter the Labyrinth from the Nether side, bearing specific characteristics."

He withdrew an aged parchment from his robes, unrolling it to reveal a detailed description written in archaic script. 𝙛𝒓𝓮𝙚𝔀𝒆𝒃𝓷𝒐𝓿𝙚𝓵.𝙘𝒐𝒎

"Black and white hair, gray eyes with blue and red glints within them marking Nephilim heritage, youth belying significant power, fleeing persecution from Nether authorities, possessing dual Art affinities including the Chaos Art."

Kael looked up from the parchment, meeting Rey’s gaze directly.

"You match every detail. Which raises questions about how prophecies written a thousand years ago could describe you so precisely."

Rey’s mind raced through possibilities.

His reincarnation?

Ater’s intervention?

Some manipulation of fate he didn’t fully understand?

"There’s more," Sera interjected, withdrawing an ancient scroll from a secured container. "The prophecy states that only the chosen one can comprehend the knowledge contained in this artifact. It’s written in a script that defies translation—our scholars have studied it for generations without success."

She offered the scroll to Rey with careful reverence.

"If you can read this, it proves you’re the one foretold."

Rey took the scroll, unrolling it with hands that trembled slightly despite his attempt at composure. The script was indeed unusual—not any language he’d studied, but somehow...

His vision blurred for a moment, and when it cleared, the incomprehensible symbols had resolved into readable text. More than readable—intimately familiar, as though he’d known this language his entire life.

And the content made his blood run cold.

It was the complete Hollow Technique sequence from Chaos Art—all ten sequences, from #9 Corpse Stir to #0 Anti-Life Genesis.

Rey had known up to Sequence #6: Soulless, learned through experimentation and limited instruction. But the higher sequences had been mysteries, their principles and execution methods unknown to him.

Now he possessed complete knowledge.

Sequence #5: Death Army—Large-scale undead mobilization through distributed consciousness.

Sequence #4: Undying Host—Undead that cannot be stopped by conventional destruction.

Sequence #3: False Eternity—Creating undead that persist indefinitely without degradation.

Sequence #2: Immortal Decay—Beings that cannot die but also cannot properly regenerate.

Sequence #1: Death Dominion—Transforming an entire area into death-governed territory.

And Sequence #0: Anti-Life Genesis—Birthing entities that fundamentally negate life principles.

’This is Ater’s doing,’ Rey thought with certainty. ’My familiar from the previous life somehow arranged this. Left knowledge here that only I could access, positioned a thousand years in advance.’

But how? And why?

"You can read it," Kael stated, watching Rey’s expression transform as comprehension dawned. "The prophecy is fulfilled. You are the one foretold."

Rey looked up from the scroll, his mind still processing the implications.

"What does the prophecy say I’m supposed to do? Why am I your salvation?"

The five Keepers exchanged glances, some communication passing between them that Rey couldn’t fully interpret.

"That part... remains unclear."