The Invincible Full-Moon System

BAM!!

BLITZ!!

BOOM!

Rex pierced through the charging demons like an arrow, his body glows with black lightning as he went to the middle of the charging demons with a burning spirit.

All of the blue demons came charging after seeing the humans on the side.

Many of them take their attention off of the entrance as they charge towards the side, but all of them got intercepted by Rex.

Rex already scans them all and the majority are fourth rank demons,

The demons came charging towards Rex and hacks their weapons towards him.

But many of the attacks got blocked and countered by Rex's insane reflex that looks inhumane, and some attacks that slipped through didn't manage to pierce Rex's yellow barrier.

Instead of crushing Rex, the demons' weapons shatter upon touching the yellow barrier.

This completely shocks the demons who are in a berserk state, and this caused Rex to punch, kick, and crush each one of them.

It's all done by Rex smoothly, and this all happened in front of the man.

But the surprise didn't stop,

ROAR!!

A white beast suddenly joins in the battle and help Rex,

The mighty beast takes down many demons on its own just like Rex did.

The man saw Rex from the back, he's shocked by Rex and Delta's feat that drilled through dozens of demons like a fearsome duo.

ROAR!!

A four-armed demon suddenly slipped past,

The demon roars menacingly as it charges towards the man, it uses its other two hands to leap towards the man.

It shocks the man as it leaps from 20 meters away,

The demon then swung its battle-ax roughly towards the man, its muscles bulge violently as the battle-ax descended.

Looking at this, the man raises his sword that is enveloped by a green fiery hue to parry it.

CLANG!!

Both weapons collided creating a clanging sound,

But the man was absolutely shocked upon feeling the force of the battle-ax, it pushes him to one knee as he grit his teeth feeling the enormous power of the demon.

The man struggles to hold it as he tilts his sword to the side before the battle-ax hits the ground.

BOOM!

A huge chunk of the ground got crushed by the battle-ax,

Seeing that the man manage to parry its attack, the demon stretches out one of his hand to grab the man but the man saw it coming.

He jumped backward to create a distance as his body glowed with a green hue.

The green fire enveloping his sword burns brighter as his eyes glister, "Emerald Fire Magic, Emerald Nova!!"

Swooshh!!

Fire mana concentrated on his sword before he points his sword towards the demon, the tip of the sword then suddenly glows as it fires a green blast.

BOOM!!

The green blast of green fire is like a bullet, and it hits the demon in a blink of an eye.

Because of the speed of the green energy blast, the demon didn't have the time to dodge it as it can only raise the battle-ax to block it.

BOOM!

Upon hitting the demon, the green energy blast exploded as it blasted the demon away.

The man stabs the ground with his sword, he looks towards the blasted demon before he widened his eyes in surprise.

Although the demon is hurt with two of its hand missing, the demon is still alive.

The man then looks at Rex and Delta who are killing demons left and right making them look like toy soldiers in disbelief, Both of them completely blows his mind after experiencing fighting one of them.

He then suddenly look around him,

There are no demons leaping towards him except that one demon, and upon looking back at Rex he finally realized.

It's either the demon manages to go past Rex or Rex lets it pass intentionally.

But upon seeing Rex beating the demons easily, the man believes the latter more to be true.

ROARR!!

A roar suddenly picked the man's attention,

He looks to his right and saw some of the demons manage to cross the shallow river and go after the evacuating people, they realized that fighting Rex will not yield anything.

BAM!!

A demon went past the man before crashing to the wall,

The man looks toward Rex direction in shock before Rex suddenly said, "Henry!, stop dazing around and help my associates to evacuate the people"

This caught the man off guard,

He glance at Rex on his side and saw that Rex is talking to him while fighting the demons.

Henry then snapped out of his daze, "Uh- Yes!", he shouted.

He then pulled out his sword and runs towards the evacuating people,

There he sees Edward and Kyran escorting the evacuation people, and they both already got into battle mode when they saw demons approaching them.

It didn't take long for the demons to clash with Edward and Kyran,

Henry, who saw Edward and Kyran fighting the demons while protecting the city people picks up his pace and joins in.

Meanwhile,

TATATATATA!!

The turrets on top of the city wall kept firing towards the demons.

Although it manages to hurt the demons with even one bullet, the number of the demons overwhelms how much the turrets can fire.

It doesn't take long as the demons started to crawl on the walls.

Many of the demons are four-armed demons and they're very agile in using their arms, and they manage to reach on top of the city walls because of it.

"QUICK!! KEEP THROWING GRENADES!!"

"SIR! THEY MANAGE TO REACH THE WALLS!"

"DON'T YOU STAND THERE!! TAKE A GUN AND START FIRING, WE WILL NOT LET THEM THROUGH THIS WALL!!"

The city guard in armor desperately tries to fight back the demons,

Their armors are not traditional knight's armor, but rather, it is a modern kevlar armor that protects their upper body that is thick on the chest and joints.

Because of that armor, a slash from the four-armed demon's battle-ax will not kill them.

They can at least tank two direct hits from the demons.

BANG! BANG!

The city guard started to rain bullets on the four-armed demons that manage to get on the city walls, and some started to shoot down to the horde of the demons.

By the looks of things, the guns are working.

The bullets manage to pierce the four-armed demons' armor as it emits black smoke.

Many of the four-armed demons fall down again because of the bullets, and things started to look better when the hordes of demons started to lessen.

But then,

ROAR!!!

ROAR!!!

Two loud roars came out of nowhere as it makes the air tremble.

This makes the demons become even more vigorous as if they're on drugs, and the opposite happened to the city guards.

Because of the roar, many started to tremble as they saw two flying demons.

One of the city guards that is wearing the same modern kevlar looks at the flying demons in shock, the red band on his arm shows that he's in command.

Other city guards also look at the flying demons in fear,

There are about 13 people on top of the city wall, and they're under the command of the city guard wearing a red band.

When suddenly,

The blue cores on the flying demons' chests suddenly gather a terrifying amount of energy.

Even the normal humans that can't feel energies felt goosebumps, blue energy started to concentrate on the blue cores.

It creates a weird suction sound until suddenly,

BOOM!!

Both of the winged demons suddenly shot a blue blast from their cores, it hits the two turrets on the city wall and completely destroys it.

The wall shatter because of the impact,

Debris flew around like a bullet as it hits the surrounding, and the city guards got flung away because of the explosion.

"ARGHH!"

"WAAHH!"

Their shouts got drowned by the wall shattering,

Because of this, the four-armed demons roared as they started to enter the city with bloodthirst trying to find the city people to eat.

After the city wall's breach, one particular city guard coughs a couple of times.

The dust flying around because of the explosion disturb his lungs,

He looks to his right and saw many demons penetrate the city wall as they started a rampage, it makes this city guard look around trying to find something.

Looking at his dusted surrounding, the city guard saw his gun lying on his left.

He wanted to reach for it with his left hand but suddenly, he felt that his right arm are not moving from its spot.

The city guard then look to his right arm and saw a huge piece of the city wall clamp down on his right arm making it stuck.

"No...Not my right arm again", the city guard mumbles in disbelief.

He tries to free his arm to no avail, the piece of the wall is too heavy for him to just move aside.

This makes him look to his gun again with determination,

He tries to desperately reach for his gun but it's no use, he can't reach it no matter how hard he tries to reach it.

The city guard then lies helplessly as the scream of the city people resounded in his ears.

It makes him chuckles to himself,

Whether it is luck or not, the demons for some reason didn't check this side as they all went straight deeper into the city.

And this particular city guard lies on the ground weakly unnoticed by the demons.

Back to the side of the city,

SLASH!!

Henry just killed a demon by slashing its head off,

The demons that came pursuing the evacuating people are only rank three, and he manages to kill a bunch of them.

Edward and Kyran also killed a lot of them, only a handful of demons are left.

But when Henry was about to resume his fight, Kyran suddenly landed beside him after getting pushed by the demons.

"Who are you guys?", Henry asks while looking at the demons warily.

Hearing this, Kyran glance at Henry briefly before he said, "How many demons have you killed?"

Henry was confused hearing this,

Kyran just completely ignores his question and asks a question of his own, "I think about 7, What about it?"

This makes Kyran scoffs cheekily,

CRACK!

Another demon leaped towards him before Kyran grab the demon's head and crushed it with his bare hand, "This is my twentieth, you need to catch up", he said.

Henry was at a loss for words, but when he's about to answer,

BOOM!!

A loud booming sound suddenly can be heard from the entrance direction, this attracts all of them to the entrance.

Tap!

"Let's wrap this up and meet back there", Edward suddenly appeared and said.

Hearing this, Kyran looks in Rex's direction and he nodded his head before they dash to kill the remaining demons around them.

He saw Rex is signaling for them to regroup, so they need to clean the demons here.

By now, the evacuating people have already reached the forest.

They're already safe now, so Edward and Kyran will regroup back with Rex who is still fighting against the demons.

Rex also heard the booming sound from the entrance,

'The city is breached, we need to hurry and find Adhara's father', Rex thought as he dodges a blue energy slash coming from a fifth rank demon.

He then swing his legs and sent a Force Beam as it splits the demon in two.

Rex landed a couple of feet back and thought, 'The demons here will not stop, we'll need to escape this'

After thinking that, Edward and Kyran arrive alongside Henry.

"How do you know my name is Henry?", Henry asks in confusion, he just realized it now.

He never told anyone his name, and Rex suddenly calls him by his name which throws Henry off.

Rex glance at Henry for a moment, he then leaped over the city wall followed by Delta and Kyran who also jumps following him.

Edward looks at them wryly, he activates his fire element before he too leaped over the wall.

After the four of them left, Henry is left behind.

He was started to get annoyed at not getting his question answered by the group of ninjas, but his annoyance feeling vanish,

ROAR!

The demons are charging at him, and there are still many of them.

Without thinking any further, he activates his green aura and started to climb the wall like a spider to go over the wall.

Rex landed inside the city followed by Delta, Kyran, and Edward.

He sniffs the place before he said, "Let's go that way"

Hearing this, Edward was confused as to how Rex know where to look but he still decided to follow Rex to the side.

The four of them jumped onto a house to look at the situation,

The demons already rampage through the city, and the city guards are overwhelmed with them.

But instead of helping the people, Rex fixed his eyes on a huge demon with wings on its back just like the demon he saw during the train crash before.

He knitted his eyes and saw a man that looks like a city guard lying beside the city entrance.

"Edward, Kyran, That is Adhara's father", Rex said while pointing at the man.

Both of them look at where Rex points at and see a man lying on the ground and he seems to be pinned on the ground by the huge debris that falls onto his arm.

Edward then said, "How can we go there with that winged demon on the way"

"That demon is very powerful, I think it might be stronger than you Rex", Kyran added after sensing the winged demons' enormous aura.

Rex looks at it with a vicious smile, "Just rescue Adhara's father and leave that one to me"

A couple of seconds after,

Phuwwiitt!!

A whistling sound attracted the winged demon,

Rex then came from the side walking leisurely towards the winged demon with Delta.

Looking at a human and the beast with no sign of fear makes the winged demon smirk creepily, "Human! Are you trying to escape?"

"It will be futile, you will not escape", the winged demon added.

Hearing this, Rex didn't answer as he keeps walking towards the winged demon.

The winged demons then signal to the four-armed demon to kill Rex,

After getting the signal, two four-armed demon charges towards Rex with its battle-ax but then suddenly,

BOOM!

In a blink of an eye, the two four-armed demons got planted on the wall beside the winged demons like a jet.

This caught the winged demon in surprise,

It realizes that Rex is a Zeragon and the winged demon didn't expect such a high-caliber human to be residing in this kind of place.

Seeing this, the winged demon gets into their battle stance.

"Who are you?", the winged demon asks warily.

Hearing this, Rex smirks back creepily, "Me? I can be an angel or the grim reaper if you don't move aside"

This makes the winged demon enraged, "Are you mocking me?!"

Rex chuckles lightly followed by Delta who growls menacingly on the side, both of them then stop a couple of meters away from the winged demon.

"Which one will it be? Step aside and live?", Rex said slowly.

He then stares straight at the winged demon eyes viciously before he continues, "Or die"