The Extra Who Shouldn't Exist novel Chapter 323

Chapter 323: Chapter 323 : Reborn as weapons (2)

Inside the prison basement, Alex knelt in front of Tina and Remus’ cage, watching Tina cling to his boot as she begged for her brother’s life.

In his mind, he spoke a single word. ’System.’

[ Host, ] the familiar voice replied. [ Their will to live has increased exponentially. ]

A translucent panel appeared in Alex’s vision.

[

Subject: Remus

Will-to-live index: 12% → 83%

Subject: Tina

Will-to-live index: 9% → 91%

]

[ Their current mental resilience has spiked. With proper training, their potential is high—possibly enough to surpass transcendent rankers. We can begin now. ]

Alex’s eyes narrowed slightly. ’Good. Then let’s start.’

He reached into his storage ring and drew out two cores.

One burned with a deep, molten crimson glow—like liquid fire trapped inside a crystal.

The other shimmered with a dark, shifting blue-black mist, as if a piece of the night sky had been compressed inside it and drowned in shadows.

"Let’s see," Alex thought, "if S-rank cores can be transplanted or not."

[ Then let’s try it. ]

Information flashed across his vision.

[

Beast Core: Kaelthryx

Title: "The Flame That Devours Flame"

Race: Cinder-Null Behemoth

Affinity: Fire

Rank: S (evolvable)

Beast Core: Nhal’Zeroth

Title: "The Hunger That Ate the Sky"

Race: Abysskin-Leviathan

Affinity: Shadow

Rank: S (evolvable)

]

Alex stood.

"Astral Domain," he whispered.

The basement, the cages, the blood-stained floor—all of it dissolved in an instant.

---

The world shifted again.

Alex now stood in his Astral Domain—an endless expanse of starlit space, reshaped once more into a huge, dimly glowing chamber. This time, Tina and Remus were there with him, their bodies lying side by side on the ground, the filth and iron bars of the real basement gone.

They still looked frail, skin mottled with dark patches, breathing shallow.

With a flick of his fingers, Alex exerted his will over the domain.

Their torn clothes straightened slightly, their bodies laid out flat, arms by their sides as if on an operating table made of starlight.

"Let’s begin."

He stepped between them.

From his body, an abyssal darkness suddenly flowed out—a thick, inky black mist that wasn’t just shadow, but pure, condensed death energy. It spread across the ground and rose around them like a tide, engulfing Tina and Remus completely.

Their bodies lifted slightly from the floor, floating in the air, suspended by invisible threads.

Alex moved his hands.

His right hand thrust forward—and pierced into Remus’s chest.

His left hand did the same to Tina.

There was no blood—at least, not in the normal sense. The Astral Domain translated the action into streams of black and white light, but the pain their bodies felt was very real.

Into Remus’s chest, Alex pushed the molten-crimson core—Kaelthryx.

Into Tina’s chest, he embedded the shadow-blue core—Nhal’Zeroth.

The moment the cores entered their bodies, both twins started shaking violently.

Their muscles convulsed uncontrollably.

Their backs arched, mouths opening in silent screams as if their voices had been stolen. Veins bulged beneath their skin as the foreign mana surged through them. Blood seeped out from old wounds and new cracks, running down their arms and necks.

Their skin split in places, then tried to knit back together, then split again.

Alex’s eyes hardened.

He summoned another force.

Warm, golden-green light—life energy—flowed from his hands and wrapped around their bodies like a second skin. It seeped into torn muscles, cracked bones, ruptured vessels, reinforcing everything, preventing their fragile forms from simply collapsing under the pressure of the S-rank cores.

The death energy devoured the remnants of corruption and the cult’s experiments still gnawing at their insides.

The life energy rebuilt, strengthened, adapted.

Slowly, the violent shaking began to lessen.

The uncontrolled spasms turned into shivers.

Their breathing steadied—ragged, then slowly deeper.

A change began.

Tina’s green hair darkened strand by strand, like ink spreading across paper. Within moments, her entire head of hair had turned a deep, midnight black that seemed to swallow the starlight around it.

Remus’s green hair, in contrast, began to glow—shifting into a bright, burning orange, like strands of flame frozen in motion.

Their skin, once mottled and blackened, returned to a healthier tone—still pale, but no longer rotting. Old scars remained faintly visible, but the infected patches vanished.

[ Host, ] the system finally reported. [ Their bodies have accepted the cores. Integration successful. Your mana signature has been fully imprinted as the controlling layer. ]

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