The Invincible Full-Moon System

"BOOM!

BOOM!

"What the heck is that beast doing? Is it lost?", Edward asks in confusion.

The three of them already reach the commotion, and they're hiding inside an abandoned restaurant and looking at the battle from inside.

Outside, they saw a white beast fighting against a demon.

Rex already scans the demon and find that it is a fifth rank demon,

The demon is a female one based o the curve of her body, its body is covered by black charcoal armor with a blue glowing core in the middle of her chest.

It has two horns that curve back and up, and her claws are deadly-sharp.

The impact of their fights destroyed the surrounding,

Based on the dead demons in the surrounding, the white beast seems to fight them for a while and kill some of them until this demoness arrives.

Rex glances towards Kyran and asks, "Kyran, is there any demon coming here?"

"Yes, at least five demons are coming over here but they're not as strong as that demon", Kyran replied while pointing at the demoness.

Hearing this, Rex nodded his head.

"What a powerful beast, it comprehended force too just like you Rex", Edward praises.

Rex smiles cheekily before he signals to Edward to grab one of the demon's carcasses, he does it using hand signs and Edward understands it.

Kyran on the other hand doesn't understand it at all.

After looking around warily, Edward dashes outside of the abandoned restaurant and come back with a demon carcass in his hands.

"What are you going to do?", Edward asks.

Without answering Edward, Rex touches the demon carcass before he instructed the system to scan the carcass.

<Scanning...>

<Scanning Complete!>

<There are no runes or magic that will be activated upon death>

Reading this, Rex smiles in relief.

With the system's confirmation, beating the demon watchmen will be easier knowing that killing them will not alert the others.

Edward and Kyran look at Rex as he scans the carcass weirdly.

In their point of view, nothing happened after Rex touch the demon's carcass.

After reading the system's notification,

Rex looks at Edward and Kyran before he scans them, after doing that, "You both will intercept the demons that are coming here, make sure to kill them silently"

"Kyran, let's go", Edward said without questioning Rex further.

Looking at Kyran and Edward leaving the place, Rex turns his gaze to the demoness that is still fighting the white beast before suddenly,

CRASH!!

Something crashes to the abandoned restaurant Rex is in,

Rex looks at the thing that crashes in and finds out that it is the white beast, it is Delta!

Delta growls in pain after getting hit by the demoness, but when she opens her eyes she saw Rex ducking low under the window.

She widened her eyes in surprise before that surprise turns into delight.

But just when she's about to leap towards Rex,

Rex signals her to not alert the demoness about his position, and Delta somehow understands him even though Rex is only using hand signs.

It's like they're connected by instincts.

"You Dog has creates enough commotion", said the demoness with her astral voice as she walks into the abandoned restaurant with her light steps.

Delta glare at her angrily as the white hue on her body started to glow again.

The demoness smiles mockingly as she looks at Delta's wounded body, "I'll make a dish out of your meat after I'm done torturing you"

But then suddenly, a subtle air suddenly blows on the demoness' neck.

"I don't think so", someone whispers in her ears.

This makes the demoness widen her blue glowing eyes in shock, but before she can do anything,

STAB!

Five claws penetrated her abdomen as she got lifted off of the ground, she was surprised that someone manage to sneak up on her.

Her abdomen that got pierced emits smoke as she wails in pain.

Rex's eyes then glint fiercely,  "Delta!", he shouted before he threw the demoness towards her.

Knowing what Rex meant, Delta smirked evilly as she jumped and bites the demoness' head off, and started munching on it.

CRUNCH!

The demoness died after getting her head bit right off by delta, her body dimmed lifelessly.

She's caught off guard and died because of it.

After killing the demoness, Delta leaped towards Rex and started licking his face repeatedly making Rex chuckle.

"I'm sorry I forgot about you", Rex said feeling guilty.

But Delta didn't mind one bit as she kept licking Rex's face endlessly.

Meanwhile,

Kyran and Edward are about twenty meters away from the abandoned restaurant Rex is in, they will be intercepting the approaching demons.

They both then hides behind an abandoned car,

"The closest one is from here", Kyran said while looking at his side.

Hearing this, Edward nodded his head before he said, "Remember, we have to kill it silently so make sure you hold the demon tightly"

Kyran nodded his head while mumbling what Edward said.

Just after Edward said that the sound of running footsteps can be heard from their side.

Edward looks to his side quietly and saw a four-armed demon approaching, it has an aura that is at least as strong as a fourth rank Awakened.

He then looks at Kyran before Kyran nodded his head.

After taking a deep breath, Edward puts his hands on the handle of his daggers before he shouted, "NOW!!"

BOOM!

Both Kyran and Edward's bodies glow with their respective aura.

Kyran is blue while Edward is red, the ground cracked as they dash towards the demon that is not expecting an attack.

"Rrghh?!", the demon grunted in surprise.

In the demon's point of view, something came out from behind an abandoned car.

But before the demon can snap out of his shock, something hits his legs before he stumbles and falls forward to the ground.

Thud!

Finally snapping out of his daze, the demon wanted to roar but suddenly,

STAB!!

A dagger stabbed right on his throat making him unable to produce any sound, it happened so fast that even he himself didn't feel the pain before realizing he got stabbed.

With a swift of a motion, another dagger stabbed the back of the demon's neck and killed it.

"Nice job, just do exactly like that and we'll kill the demons easily", Edward said praising Kyran who manage to take down the demon in one go.

After dashing towards the demon,

Kyran arrives on the demon's back hits both of the backs of the demon's knees, and at the exact moment, he sweeps the demon's legs by kicking them.

This allows Edward to swiftly mount on the demon's back and stab the demon to death.

"Let's go to the next one", Edward said before Kyran leads the way.

Because of the formation of the demon watchmen,

Edward and Kyran's job becomes easier because they come from different directions and they're all alone, this allows Edward and Kyran to take them out one by one.

Their chemistry becomes better and killing the coming demons becomes easy.

After sweeping the surrounding demons that are heading towards here, both Edward and Kyran got back to Rex's position.

Upon arriving there,

Their eyes widened in surprise seeing Rex waiting for them with the white beast beside him.

Edward approach Rex as he marvels at Delta, "So this is your Zeragon partner, it's a fifth rank mutated animal no less"

"Can I touch it?", Kyran asks while looking at Delta's thick fur.

Hearing this, Rex chuckles lightly before he said, "It's not the time to do this, let's go save Adhara's father first"

The three of them then dashes towards Beah City direction,

With the information Rex got from the system, they can now move easily through the demon watchmen knowing that they can kill them silently.

Many of the demon watchmen are the fourth rank, and this is a breeze for Rex.

He can even kill a fifth rank demon silently, so their journey through the abandoned city becomes easier to travel.

Even Edward was surprised to see Rex's strength,

It's not long since he got into Faraday University, but the power he currently wields is already far apart from him who used to be the second strongest in Faraday University.

Killing fifth rank demons is easy for Rex, and this shows Rex to have at least peak rank five or sixth rank power.

It didn't take long for them to arrive in Beah City,

Rex climbs a tree and looks at Beah City in front of him, the situation is not good as the demons are already pounding on the entrance of the city.

But although it is dire, the city has defense mechanics of its own.

On top of the city wall, there're automated turrets that are firing rounds towards the demons, and it manages to hold back the demons substantially.

Even the entrance of the city has been engraved by offensive formation.

It was the work of a Formation Master,

Formation master just got is another Awakened profession, this profession is invented after intense research humanity did to understand runes.

Only a few Awakened becomes a Formation Master because there's still no manual book to become a Formation Master, only by learning runes themselves can one become a Formation Master.

And this process needs a huge amount of will and hard work to achieve success.

"There's a formation master inside that city, it should hold on for quite a bit but", Rex said but he then looks at the demons attacking the gates that are crawling like ants.

He then continues, "There are so many demons..."

"Rex, look at that!", Kyran said while pointing in a direction.

On the side of the city wall, there's a secret door where people inside the city start coming out to escape the invasion.

The demons are focused on the entrance, so they tried to use this to evacuate the city people.

Looking at this, Rex smiles in delight, "We'll go through there, I've met Adhara's father and he might be amongst them"

But before they can go there, Edward suddenly saw something.

"REX!! We need to hurry!!", Edward shouted while pointing towards the right where a demon saw the people evacuating.

With that, Rex picks up his pace, "Let's go!!"

Meanwhile,

"Quick! Follow Adrian! He knows where the shelter is!", a man shouted while holding the secret door open.

The man wears a uniform with a gun crest on his chest, it seems that he's an Awakened sent from a guild.

People young to old came out of the secret door in a panic.

Their city suddenly got invaded by the demons from Benrith City, and because of this, they didn't manage to evacuate the city people.

All of them are running towards the forest on the side,

But the forest is still a good distance away from the city wall, it is roughly about fifty meters away from the city wall and it's split by a shallow river that the city used as a water source.

This exposes the people as they try to run into the forest.

About fifty of them already managed to get out, when suddenly,

ROAR!!

A roar resounded from their side as a four-armed demon holding a fiery ax saw them, it then started to gallop towards the evacuating people like a raging bull.

After the roar, many demons also saw the people and they started to run after them.

It's still quite a distance from the entrance of the city to the secret door, but the demons are fast and their blood-hungry eyes are fixated on the evacuating people.

Looking at this, the man that is holding the secret door shouted, "RUN FASTER!!"

"You three, help me buy some time for the people!", the man said while pointing towards three other men in armor.

By the glowing aura of the man, it's evident that he's an Awakened.

But the three men hesitated to walk out of the city after seeing the blood-hungry demons, they're shaking on their boots.

The man glance at them in shock, "YOU'RE THE CITY GUARD!! COME HELP THE PEOPLE!"

Hearing this, the three men's face turns red in embarrassment but one of them finally said, "I'm sorry sir..."

Brak!!

The secret door slammed shut in front of the man's face, this makes him laugh lightly ridiculing himself for trusting such people.

Knowing that he too can't escape the predicament,

The men steady his sword in front of them while glaring at the charging demons.

ROAR!!

The sound of the demons charging resounded to the evacuating people, their will to survive kicks in as they kept on running tiredly.

Many of the demons are getting closer, their hulking body makes the man grip his sword tighter.

"RAARGHH!!", the man shouted as one of the demons leaped towards him.

But suddenly,

BAM!!

BOOM!!

Someone punches the demon's face sending the demon crashing to the city wall, it creates a web-like crack upon crashing to the wall before its head explodes.

This caught the man in surprise,

"Kyran! Edward!! Escort the evacuating people!", a man shouted wearing a black uniform.

The other two men that just arrived wearing the same then dashes towards the evacuating people just like the man's instructed.

It's Rex and the others, they arrived right on time.

Rex stands tall in front of the man who is gripping his sword tightly, he looks at the charging demons as his fighting spirit lifted.

"Who-Who are you?", asks the man stutteringly.

Hearing this, Rex glance back at the man before a smile crept on his face.

Without answering the man, Rex dashes towards the horde of demons as he started to massacre the demons left and right.

This happened in front of the man who stood frozen still,

He then gritted his teeth seeing Rex fighting against the demons, "RAARGHH!!", he shouted as he joins in the battle full of vigor.

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