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Chapter 171 - Chapter 171 — Grimoire Transformation! A New Fire Spirit Host — Yuuki!

 

The awakening of the human Fana's soul caused the reincarnation forbidden spell to destabilize completely.

When the tip of the Demon-Dweller Sword pierced forward, it became the final straw that broke the balance.

The Evil Eye spell began to collapse entirely.

The grotesque eye embedded in Fana's forehead slowly dissipated, wisps of purple mana drifting away as the spell unraveled.

"…Haa."

Yuuki exhaled softly as he looked at the unconscious Fana.

From the final look elf Fana had given him—after hearing his words—Yuuki had sensed something subtle: a faint trace of anticipation… and relief.

For five hundred years, the hatred and resentment toward humanity had been suppressed deep within the hearts of the surviving elves.

The conflict between elves and humans was indeed born from a demon's manipulation—but it was also true that humanity had committed the crime.

When Yuuki said "there will be an ending," he hadn't lied.

In the future, the First Wizard King and the elf tribe's leader would indeed reach reconciliation.

As for whether that outcome was right or wrong—

Yuuki neither affirmed nor denied it.

To him, it felt more like a compromise.

Whoosh.

Holding the Demon-Dweller Sword against Fana's forehead to continue dismantling the Evil Eye spell, Yuuki placed Fana's grimoire atop his own silver grimoire with his free hand.

Perfect Replication.

Silver mana enveloped Fana's grimoire and swallowed it whole.

In that instant, Yuuki's body glimmered faintly silver, his perception rising sharply—

He saw the two dormant souls within Fana.

One of them was rapidly fading.

Elf Fana's soul.

Without hesitation, Yuuki replicated the mana origin contained within elf Fana's soul and drew it into himself.

BOOM!

Yuuki's body shuddered violently.

The mana he had expended during battle was replenished instantly—and then surpassed, as even greater torrents of mana surged forth.

A terrifying aura erupted from his body, forming a pressure wave that swept outward.

The Mana Skin surrounding him thickened visibly, and the faint trace of gold at its outermost layer became far clearer.

An oppressive, heart-stopping presence filled the air.

For a brief moment, flames flickered within Yuuki's black pupils—

Then vanished, leaving only a fleeting red gleam.

"…Incredible mana."

Yuuki quickly suppressed the external phenomena, feeling the staggering increase within his body even by his current standards.

The elves truly were a blessed race.

Compared to when he had absorbed Vetto's mana origin—an event that had produced violent external changes—this time the manifestation was far more restrained.

That wasn't because Fana's mana was weaker.

It was because Yuuki had already stepped into the Zero Domain Stage.

At this level, additional mana was merely accumulation—no longer a qualitative leap.

In terms of sheer mana quantity alone, he now surpassed every single Magic Knight Captain.

Suddenly—

Rustle… rustle…

The sound of turning pages echoed.

Yuuki's silver grimoire flipped open on its own, then closed again, hovering before him and revealing its cover.

HUM—

Responding to Yuuki's vastly increased mana, the empty space on the clover emblem began to change.

A fourth silver leaf slowly emerged.

The entire grimoire trembled violently.

Yuuki's pupils widened, delight flashing across his face.

"So continued mana growth at Zero Domain… can trigger the fourth leaf?"

"Is the Four-Leaf Grimoire truly tied to mana quantity…?"

The thought had barely crossed his mind—

When the fourth leaf suddenly stopped halfway through forming.

At the same time, Yuuki's silver mana flared.

The many mana origins within his soul—previously stable—suddenly began to stir violently.

His soul itself trembled.

PFF—!

Yuuki coughed profusely as blood spilled from his lips.

He stared at his grimoire in disbelief.

The half-formed fourth leaf collapsed, the clover reverting to its original three-leaf shape.

However—

The transformation did not completely vanish.

Two vertical golden lines appeared on the grimoire's cover.

Only then did the changes fully cease.

Yuuki wiped the blood from the corner of his mouth, staring at the altered cover in silence.

The entire transformation had occurred in less than a breath.

He hadn't even had time to fully react.

"So… that was a failed evolution into a Four-Leaf Grimoire?"

"And these two golden lines… are they related to Vetto's and Fana's mana origins?"

In this world, the connection between a mage and their grimoire was absolute.

Beyond the clover, heart, diamond, and spade symbols that represented national origin, some grimoires bore additional markings—

Reflecting the mage's unique nature.

The most complex grimoire in the series belonged to Wizard King Julius Novachrono—its cover intricate, its spade doubled front and back, symbolizing duality.

With that in mind, Yuuki's conclusion was obvious.

What troubled him most was the violent reaction of his many mana origins when the fourth leaf began to form.

That reaction confirmed something crucial.

A Three-Leaf Grimoire can evolve into a Four-Leaf Grimoire.

But mana alone is not enough.

There is a second condition—

and that is the true key.

Yuuki's eyes gleamed.

He hoped the Witch Queen could give him that answer.

CRACK—CRACK—!

A sound like shattering glass echoed through the sky.

The next moment—

"ROOOAR!!"

With a furious dragon's roar, Salamander shattered the barrier created by the Barrier Hourglass and burst free.

The Fire Spirit beat its wings, charging straight toward Yuuki, crimson flames igniting the sky and sending waves of heat rolling outward.

In an instant—

Salamander transformed into a blazing meteor.

Sensing its Spirit Host's life rapidly fading, it opened its massive jaws mid-charge, condensing an overwhelming inferno.

Yuuki frowned.

He hadn't expected Salamander to break free so quickly.

A glance confirmed that the Evil Eye on Fana's forehead had already collapsed by more than two-thirds.

"ROAR—!"

The flames fully formed.

Salamander's Breath!

A colossal pillar of fire—like condensed energy—surged forward with annihilating force.

"…Troublesome."

Yuuki's silver mana contracted sharply, gathering before him and transforming into dense, dark-red power.

He couldn't move.

The Demon-Dweller Sword was still dismantling the Evil Eye spell—interrupting now risked disaster.

If this were Anti-Magic, he could destroy the spell directly—

But it wasn't.

So be it.

Head-on.

"Beast Magic — Iporapuevigu!"

An eerie incantation left Yuuki's lips.

A crimson magic circle the height of a man formed instantly before him.

BOOOOM!

A dark-red beast-attribute shockwave erupted, colliding head-on with Salamander's fire breath.

The explosion was catastrophic.

The impact gouged a massive crater into the ground—and even blasted a hole through the storm clouds above.

"ROAR…"

Salamander emerged from the smoke, closing the distance to mere meters.

For a creature of its size—

That was point-blank range.

A massive flaming claw swung down.

Yuuki didn't raise his weapon.

Instead, he smiled.

"It's over."

HISS—

The Evil Eye spell vanished completely.

Fana collapsed unconscious.

Salamander froze mid-attack—

Then dissolved into faint red light, scattering into the air.

At the same moment, sunlight poured through the break in the clouds, illuminating Yuuki and the unconscious Fana.

The clouds dispersed rapidly, the sky returning to clear blue.

Yuuki planted the Demon-Dweller Sword into the ground and sat cross-legged, closing his eyes.

Time passed.

Then—

Flames ignited around him.

A massive fireball engulfed Yuuki entirely.

"Come."

Yuuki opened his eyes and spoke.

BOOM—!

The flames roared—

And within them, a pair of blazing dragon eyes opened.

His silver grimoire flipped open, blank pages filling with ancient crimson script.

As the final character formed, Yuuki felt his mana surge yet again.

The flames compressed—

Gathering at his left shoulder.

A tiny, fire-red lizard perched there.

"We meet again, Salamander."

Yuuki smiled.

"Ha—"

Salamander yawned, a tiny flame puffing out, then curled up and fell asleep.

Yuuki chuckled.

He could feel their bond clearly—he could call upon Salamander's power at any moment.

Among the Four Great Spirits, Sylph and Undine possessed intelligence and speech.

Only Salamander remained silent—still growing, as the Witch Queen once said.

"So… I'm a Spirit Host now."

Yuuki rose to his feet.

With the Fire Spirit's power—capable of harming devils—and with Fate Magic still ahead—

He could finally face Wizard King Julius openly.

Yuuki infused mana into the Demon-Dweller Sword.

CRACK—CRACK—

The rust flaked away.

A pristine white blade emerged.

"This is your true form."

Yuuki smiled at his reflection.

"…Mm."

A faint voice stirred.

Fana opened her eyes, confused.

"Where… am I?"

"Welcome back, Fana."

Yuuki turned toward her, extending his hand gently.

(End of Chapter)

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