The Invincible Full-Moon System

A shockwave containing an enormous force burst forth like a nuke explosion.

Rex lost his balance due to the sudden force that struck his body, his body flipped a couple of times before he eventually planted his claws into the ground to sustain the rushing force, too powerful considering that the First Breath was still ongoing.

Nothing was exempted from this powerful force.

Even the Rastrikan Demons got hurtled away as their bodies also got struck strongly.

Following that, Rex created a barrier to protect himself.

He resisted the constant force that was still pushing against his body and raised his face. In the center of it all is Demon Lord Ranath, blazing with power from the hellish domain as the mark on his chest glowed vibrantly.

This is his last attack, he's depleting his entire demonic energy.

Just then, his eyes flickered seeing a slim demonic energy that was denser than the rest.

Is that... Hell-Void Energy?

Remembering the list of higher energies of each race, he was certain that this denser and more violent demonic energy was the hell-void energy. Something that only powerful demons that went past a certain point possess.

Since it was Demon Lord Ranath, a very powerful Demon, the surprise didn't last long.

It would be odd if he didn't possess it.

But more so than the threat from Demon Lord Ranath himself, Rex gazes up to the invisible barrier constructed by the Elves and finds them vibrating, a sign that the demonic power is starting to exceed the limit.

Perhaps it will hold on. If the energies of this fight got leaked, then it's going to be trouble.

Not only there are the other legions, but the Executor might sense this too.

Currently, the Executor has the upper hand for having Gistella in his grasp. Additionally, the Executor has stated clearly through a Dark Elf that he would be in contact soon. And it would be bad if he decided to call for Rex right now for the fun of it.

If he was called, fighting the Rastrikan Demons would be quite impossible for the others.

<Warning! A massive amount of energy is concentrated on the user!>

"Raarrrgghh!!"

Kaboom!

Another explosion resounded as Demon Lord Ranath's energy neared its peak.

Multiple demonic inscriptions could be seen drawn across his body, sparking some changes in his appearance. His horns grow bigger and longer to the point of becoming monstrous, and their color also changes from black to crimson red.

A change in appearance that made him more menacing and imposing to the onlookers' eyes.

Now, his appearance is more befitting of a Demon Lord.

Following that, his aura manifests into a devilish smiling face, making him look bigger.

Rex could also hear the eerie and rasping chuckle that came from this devilish aura, a chuckle that could instill fear even in those who have a strong will. "Are you sure you're going to use that attack? I think the world sphere is not going to like it..."

Pointing at the white sphere in the sky, a smirk crossed his face.

However, Demon Lord Ranath smirked back, "I don't think you understand my power"

Swoosh!

Out of nowhere, a white suppressing beam descends from the white sphere in the sky, sensing Demon Lord Ranath's rampaging power. Phasing over the formation barrier, it then hits Demon Lord Ranath intensely.

Watching this scene unfold, Rex couldn't hide his surprise as his face twitched.

Demon Lord Ranath's energy didn't go down despite being engulfed with the white suppressing beam, it was still burning strong. Inside this white beam, he was even smiling from ear to ear with his eyes glowing demonic red.

Clearly, he managed to sustain the white suppressing beam somehow.

System, how is this possible? Isn't the white sphere stronger than everyone?

Even the Supernatural Elders were aware of this fact when he fought them back then, so he found it confusing that Demon Lord Ranath, someone who shouldn't be as strong as the other Elders was able to sustain the white beam like this.

It was not even as simple as blocking it, he was more like enduring it with his body.

But it was then that Rex remembered something.

Is he borrowing the power from the Origin or a God?

Back when he was fighting the Supernatural Elders, he remembered that the Storm Prince had done a similar feat. He also managed to bypass the white beam, and that should be because of the Storm Moon Lunirich God.

Following that logic, Demon Lord Ranath should be doing something similar.

<Does the user want to purchase the information for 10,000 Gold?>

Fine, buy it and tell me.

<Yes, Demon Lord Ranath borrowed power from the Demonic God. Similar to the King Mark of the Werewolves, strong Demons also could be somewhat connected to their Gods, allowing them to possess even greater power in a term of Sin Epicenter>

<It would also grant them a unique ultimate ability of their own called Hellgate Ruination>

Upon hearing this, Rex frowned as this would be the last clash between them.

Obviously, Demon Lord Ranath is going to use his ultimate ability to take care of this fight with one attack. It's a troublesome thing, not that Rex is not confident that he could take the ultimate ability on, but it was due to the fact of the other Rastrikan Demons.

Due to the shockwave, the Dwarves' army was already hurtled away.

Rex's side of the battlefield behind him was completely empty, but surprisingly enough, there were many Rastrikan Demons who managed to stand their ground despite the powerful shockwave generated by Demon Lord Ranath.

It was unclear whether Demon Lord Ranath helped them or whether were they that strong.

This puts him in a difficult situation.

Even if he did charge up his energies, preparing for the final clash, he would be interrupted.

Other Rastrikan Demons would undoubtedly charge at him like moths to a flame, doing everything in their power to disrupt his focus and allow Demon Lord Ranath to land the finishing blow, even if it meant sacrificing themselves in the process.

"Don't worry, you're not alone..." A resonant voice creeps in.

Upon hearing this Rex smiled recognizing the voice before Adhara came from the back.

Alongside her was another figure, Huvuki. "I've already asked for something outrageous, and yet, you accepted the request and helped us personally. I would be damned by my ancestors if I don't help out, even if it cost my life"

Both of them were the only ones strong enough to endure the shockwave from earlier.

Knowing that Rex would be all alone to fight against the Rastrikan Demons led by Demon Lord Ranath, both of them made their way to the center. It was a hard struggle against the force, nevertheless, they made it.

I'll finish this as quickly as possible before the formation barrier breaks...

Rex nodded his head with a wicked smile. This will work.

"Let's end this, Demon Lord Ranath! Know that I am the strongest in this world!" Rex roared.

Crack!

KABOOM!

Surging from a hidden depth within his body, the kingly energies awakened with a powerful explosion that gushed out of his body, instantly increasing the pressure emanating from his aura. Even the entire battlefield trembled as Rex lowered his stance, his veins, and muscles bulging with immense power.

It was not his peak power, he couldn't turn into his Werewolf form as that would be too much.

However, this is certainly the strongest output he could garner in his human form.

Upon hearing this loud and arrogant declaration, Demon Lord Ranath was furious as he roared and flapped his wings and shot to the sky before he raised both of his arms above as if he was holding the entire world in his hands.

Like a signal, the Rastrikan Demons started rushing forward in a stampede.

Responding to this, Adhara and Huvuki leaped forward approximately fifty meters, then anchored themselves firmly in the ground. Similarly, they channeled every ounce of their energy, bracing for the incoming charge of the demon legion.

Swoosh!

Adhara's Werewolf form has its pristine white fur blazed with extremely hot purple flames.

Even her big spirit manifests and coils behind her, hissing menacingly.

In addition, she also didn't waste any time and activated her herald mark to go even further.

On the other hand, Huvuki slammed his war hammer onto the ground, creating a big crack before his body started to be engulfed in icy power alongside the area around him. It was powerful enough that he managed to rival Adhara's flaming aura which was surprising.

Upon reaching their peak, the two dashed onward, straight to the legion.

Growl!

Raahh!!

Sprinting powerfully, the two turned into beams of fire and ice, heading straight at the legion of demons. When they made contact, two explosions resounded before they were entrapped in a fierce fight.

Adhara swung her daggers beautifully, fending off the Rastrikan Demons.

Each of her strikes was able to pierce through their thick armor skin, and her display of fighting was akin to dancing due to her flexible maneuver and also the smoothness and decisiveness in her movements.

Huvuki was the complete opposite of Adhara's fighting style.

Using his imposing hammer that was made specially, he crushed the Rastrikan Demons coming at him with them, causing as much destruction as he could with his icy powers that could take down multiple demons in an instant.

More brawler than a fighter, taking offense most of the time.

Devoid of fear, the vicious Rastrikan Demons kept on attacking them from all sides.

Some of the others ignored them and tried to head toward Rex who was powering up amidst the battle. However, the ones who tried to ignore Adhara and Huvuki found that they couldn't. Both Adhara and Huvuki were very much aware.

Not one of them managed to go past the duo of fire and ice.

Meanwhile, the intense powering up of Rex and Demon Lorn Ranath didn't come to a halt.

Demon Lord Ranath looked down at Rex, his gaze emanating pure bloodlust. He unleashed a torrent of demonic energy into the sky, a deafening proclamation, "We are the zenith of power, spanning across time. Even until now!" His roar echoed with unrestraint might, letting out all of the power inside his body. "I'll show your ignorant self, the unparalleled might of the Demon Race!"

Swoosh!

Out of nowhere, the raining sky dispersed and was replaced by an odd crimson light.

Rex looked up to behold an imposing door that appeared suddenly, resembling the very gates of hell, manifesting in the sky thanks to Demon Lord Ranath's energy. It creaked open slowly, unleashing searing flames and echoing with the agonized wails of millions of tortured souls.

Upon seeing this, Rex gritted his teeth and clenched his fists harder.

Blood seeped out of his hands and mouth in return.

I need more power, I'll activate everything! I will always come out on the very top!

Not holding anything back, Rex instantly activates all of the enhancements inside his arsenal and propels himself to a new height of power. Likewise, he was shot by a white suppressing beam from the sky in response.

However, a gush of dark energy blocked the white beam. It was the Countess.

[Leave this to me. It takes a huge toll on me to do this, so don't be reckless frequently]

Making a mental note that he wouldn't be able to do this repeatedly during the First Breath, he redirected his gaze upward to see the gate in the sky was already fully opened, revealing its terrifying infernal contents.

Demon Lord Ranath becomes frantic, laughing wickedly amidst this extreme moment.

"Teach me fear...? Impudent! Laughable! What are you even going to do to achieve that?!" 

"It is not you but me who would teach you the meaning of fear!"

Focusing his demonic energy on his hands, a vicious blackened fire blazes around them.

"Hellgate Ruination..."

SWOOSH!!

A burst of flames comes forth and spills out of the gates upon the chant. It was then he swung both of his arms downwards, casting the ultimate ability that he borrowed from the Demon Gods.

"Infernal Pandemonium Incursion!!"