I opened an adventurer's guild in another world.

The Undead Overlord, along with four Undead Lords and more than 15,000 undead, locked onto Anno on the volcano and spewed out the black light from his mouth at the same time when it reached its critical point!

With the domain's enhancement, even the lowest-ranking third-tier undead can unleash beams of light with the power of a fourth-tier being.

However, even an eighth-tier undead overlord can only unleash beams of light with the power of a peak eighth-tier being.

Large and small beams of light, carrying destructive power, surged up the mountaintop.

"【Netherworld Purgatory - Hellroar】!"

Whoosh whoosh whoosh...

Countless black beams of light hurtled toward Anno at an incredible speed.

From an outsider's perspective, Anno was surrounded by tens of thousands of rays and had nowhere to hide!

But Anno, who was on the mountaintop, did not sit idly by and wait for his doom.

He closed his eyes tightly, spread his hands, and the Mystic Eyes of Death Perception on his back immediately began to absorb energy from Anno.

As the power of faith in Anno's body was absorbed, the Demon Eye not only swelled several times, becoming tens of meters in size, but also turned so red that it seemed to be dripping blood.

Just as the undead unleashed [Hellroar], Anno opened his eyes, staring at the ray that nearly engulfed him, and roared inwardly, "[Death Perception Ray]!"

Boom!

The Demon Eye instantly unleashed a red beam of light about ten meters in diameter, which circled the volcano several times downwards!

The whole process happened in the blink of an eye.

With a flash of red light, all the black light flying towards Anno was swallowed up.

Boom!

Three seconds after the death rays disappeared, a series of explosions began to erupt from the ground around the volcano.

Then the ground of the entire [Netherworld Purgatory] domain began to crumble and fall apart, the earth shattered, and the dead wailed!

Amidst the deafening roar, the surrounding domains and undead legions vanished, leaving only the volcano associated with Anno's [Domain of Death Perception] and the enormous Mystic Eye suspended above the crater.

"Is this what they call a battle between domains?"

Anno stood on the crater, gazing into the darkness in the distance, then closed his left eye.

The demonic eye behind him closed in sync with Anno.

After the Mystic Eyes of Death Perception closed completely, the [Disease Perception Domain] dissipated, and Anno reappeared in the outside world.

Outside, there were no densely packed skeletons surrounding Anno.

The undead legions that were annihilated within the domain turned into piles of bone dust all around.

A night breeze blew by, raising a cloud of bone dust that glittered in the moonlight!

"Master, what just happened?"

Liz and Sassi rushed over from the side, their faces filled with confusion and shock.

Just now, while we were fighting, all the living undead were covered by a shadow and disappeared.

In just a short while, only Liz and Sassi remained on the plain, along with a pile of shattered skeletons.

After waiting for a while, the two saw the current scene.

All the undead in the undead army turned into bone dust piled up together.

Anno gently shook her head without replying.

Although he absorbed all the souls of the undead legion that died in battle, he had no sacrificial materials.

All the bones turned into bone meal.

Although bone meal is also a precious magical material, especially bone meal from high-ranking undead.

However, the sacrificial material used by [Spirit Sacrifice] to summon the Undead Overlord and the Undead Lord is not bone meal, so Anno does not know who in the Undead Legion controls this domain.

Anno deduced that it was the ruler of the undead, since the possibility of other undead controlling the domain was too small.

"What a pity!"

Anno sighed.

Souls that are no longer used as sacrificial materials can only serve as materials for skill advancement.

Moreover, Anno's losses this time are not limited to these.

Annihilating 15,000 undead in one glance—that number sounds satisfying, but the energy expenditure is equally exhilarating.

【Mystic Eyes of Death Perception】Each use consumes 30 Faith Power.

In the divine war between Sagunto and the dragon scorpion god Hawthorne, more than one god-level powerhouse perished.

Anno gained over a million faith points for free, accumulating 137 million.

Anno then used the Death Perception Ray twice.

One instance was in the Roland Empire, where they were ambushed by the Siren God Clan. In the end, Anno used the [Death Perception Ray] to kill the ninth-tier Siren God Clan member who had been severely injured by the Roland Empire's Sword Saint.

The other time is now.

After using it twice, Anno now only has 77 Faith Power left!

"However, under the circumstances at the time, the Blood Moon of the [Evil King's Domain] might not have been able to withstand the domain attack of the undead legion!"

Anno thought for a moment and realized that he could have summoned a large number of creatures to defend himself.

However, this method is unreliable.

If they can't hold them off and a significant portion of their summoned creatures die, it will greatly impact Anno's plans.

Resummoning a high-level summon requires hundreds of thousands of mana.

Even with 380 million mana, Anno wouldn't have enough to summon several seventh or eighth-tier summons.

The summoned creatures were all accumulated over time.

Anno doesn't have much time to rebuild its lost workforce.

Therefore, it's more convenient to use 30 units of faith power.

After thinking all this through, Anno looked at the vast expanse of bone powder around him and summoned all his summoned creatures to collect it.

Anyway, it'll just get blown away by the wind if it's left here!

The bone powder from over ten thousand undead, although of various grades mixed together, is still a decent magical material; every little bit sold counts.