The Betrayed Hero Who Was Reincarnated As The Strongest Demon Lord

Regal's sword pierced the heart of the Water King.

''Decay!''

The miasma of miasma is sent from the blade of the sword as much as possible.

"G...................

The water king let out a scream that was unlike any weapon.

The miasma emitted by Regal was like a deadly poison to the Water King, who was clad in a holy atmosphere.

It exploded inside his body, causing the blue giant dragon's body to decay into tatters.

Regal drew his sword and jumped back.

''Wow I've defeated a legendary weapon.

That's a lot of fighting power.

Behind them, Lilim, the guard captain, and Stella, the demon army chief, let out an exclamation.

''Do it, Regal.''

In the sky above, the Underworld Dragon Belga Elfida said happily.

''Your backup worked. I thank you.''

Regal told the girls and turned to the Water King.

His body is already reduced to wreckage.

There is no sign of it coming back to life.

''........Is this the end?　The Heavenly High Priestess, who is touted as the strongest of all, has no qualms about it.

Sure, the Water King was strong.

But if it was as he had heard in myths and legends, he should have more tremendous fighting ability.

I couldn't shake the feeling of discomfort.

''- Not yet!

Suddenly, Stella screamed.

There was a crack in the air.

"A subspace transference phenomenon...?

Stella murmurs.

"Something is coming...

The rift in space opened wide.

Two light balls shot out from beyond it.

Red and Blue.

''Revise the Demon Army's strength assessment. We are no match for them on our own.

"Our aim is to destroy the demon army and seize what is hidden in the Demon King's castle.

The two transform into the forms of a lion and a bird, respectively, and furthermore, each part of the body is folded and transformed.

"Now is the time to fulfill the mission given to me by God.

The King of Water stood up and folded into two bodies, transforming his body as well.

In the next moment, a pillar of pure white light rises up.

''This is...''

Regal stared at the scene, stunned.

His whole body trembled on its own.

He shuddered and couldn't stop.

He realized that he was in an intense state of awe.

It was as if the divine Qi (aura) was in a different dimension from the Water King I had just seen.

''Using this form is the last thing I want to do. It's too powerful and could destroy the demon world itself...

The pillar of light shattered.

''It could destroy the 'thing' that lies in the Demon King's Castle but I'll prioritize the annihilation of the demons now because they could become a threat to the gods later on. ...

The one that appeared was a giant that looked to be a hundred meters long.

The figure is a knight in pure white armor.

Twelve shining wings sprouted from its back and it carried a giant sword that exceeded its height in its right hand.

Its majestic atmosphere was reminiscent of gods and angels.

''Three Heavenly Visionary High King (Divine Gear)........merged together.......?''

Regal groaned.

The pressure I felt from the Water King alone was tens, if not hundreds of times greater than the pressure I felt from the Water King alone.

Just by being relative to it, my entire body is going to be crushed.

It's as if a divine spirit that could cover the entire demon world──.

''.......I see. So this is the true Heavenly Soul High King?

No wonder it's a legend, Regal murmured inwardly.

A moment later, his vision was covered by a flash of light.

''Wha........?''

The flash of light reaped the earth in a straight line.

Everything in its orbit was collectively burned, blown up and exploded.

''This guy........!

Regal shuddered.

Part of the Demon King's Castle had been blown away and white smoke was rising.

Furthermore, the miasma forest that spread outside the royal capital had disappeared, the river of madness had dried up halfway up, and the despair mountain range had been largely carved away.

Super firepower to the extent that even the terrain was changed──.

The demons within the attack range would probably be vaporized in an instant.

''I am the King of Light. I am the King of Light, the strongest weapon that once defeated the Demon King Velfer.

The weapon that the three Celestial Highnesses merged into - the King of Light - quietly announced, "I will destroy all the demons with its power.

''I will use its power to destroy all the demons.

"Destroyed"?

Regal regrasps his bone sword.

No matter how overwhelmingly powerful he is shown to be, his fighting spirit never falters.

''You guys have always ... just one-sidedly taken us ...''

Hurt, trample, kill.

I remember when I was betrayed by a friend once.

Am I doomed to be the oppressor?

No, it's not.

"I am the lord undead Regal, the commander of the Demon Army. I am the sword that destroys everything that avenges the evil world!

Confronting and fighting against all unreasonable violence - that's the root of the legal system.

That is the root of the legal system.

I don't care how strong they are.

The skull swordsman wore an aura of miasma all over his body.

It unleashed that aura backwards in one fell swoop.

Drawing a purple trajectory, Regal rushed forward with explosive force.

''──It's useless.''

The King of Light flashed the sword in his hand.

Immediately after, a tremendous shock hit Regal's entire body.

''I..........''

Was he unconscious for a moment?

The King of Light was still unleashing his magic cannon intermittently, burning the demon world.

A scream, a shout, resounded out.

''Stop...........''

I tried to stand up, but I couldn't muster the strength to do so.

I realized that my body was falling apart.

'Not yet...'

Regal levitated his own body that was reduced to bone fragments.

As an undead man, he has no concept of 'death'.

The miasma, the life-force of the miasma, could be used to regenerate a shattered body as many times as needed.

The only thing you can do is to keep fighting until you are incapacitated.

Next, shoot thirty degrees to the upper left!

Stella was still in charge of the demon squad.

''His armor strength is extraordinary!　Concentrate the attack!

He was inspiring his allies with a dignified voice, but the difference in strength was obvious.

There was no sign of the Underworld Dragon 《Bel Ga Elfida》.

It was that fickle dragon.

It might have fled in the face of the King of Light's overwhelming battle power.

''........You can't do it. I'll go.

Regal gathered up the shattered parts of his body and regenerated them.

'No, Regal. You can't beat him.

Stella shook her head from side to side.

'Let's make the evacuation of the people of King's Landing a priority anyway. We'll buy ourselves some time until then.

'Buying time?　What weakness.

Regal said.

He slouched the bone sword down to his right hand and stepped towards the King of Light.

'I will defeat him,'

The miasma spewed out from his entire body and rushed towards the King of Light.

''Disappear, dwarf demon race.''

Countless light bullets flew from the King of Light.

Arms and legs were shattered, one after another.

''I........can't stop.......!

Even though he was crushed, Regal still rushed forward.

No matter how much he was hurt - no, the more he was hurt, the more he was hurt.

The more she was hurt, the more she was hurt.

The more it rose, the more it rose.

'Crush it if you can!　I will - even if it's the last piece, I will strike a blow at you!

More bones disappeared everywhere.

''My body and mind may be crushed, but my soul will not be crushed!　Take...

The outstretched sword reached the armor of the King of Light.

A slight scratch is made on the armor that seemed impenetrable.

But - that was the end of it.

The king of light emits an even more intense radiance from his entire body and blows away the regal.

''Gaha........?

Regal, whose arms and sword were shattered, leaving only the face of a skull, was slammed to the ground.

''...........................This is it?

The miasma, the source of energy, was running out even as he tried to regenerate his body.

They had planned to use their immortal bodies to get into the enemy's flesh and strike a fatal blow, but the opponent's offensive and defensive capabilities were far greater than Regal had imagined.

''Enough of this... Turn it off.''

The King of Light raised his great sword and swung it down.

I'm sure you'll be able to find a way to make it work.

It's not just a matter of time before the miasma is eliminated.

It's not a good idea.

I groaned, a moment.

The black brilliance that surged out of the air extinguished the slashing wave of the King of Light.

''What........?''

Surprised voices were emitted by both Regal and the King of Light.

''You've endured well, Regal.

And a dignified voice echoed from above.

''You are...''

Regal looked up at the sky, stunned.

There was the figure of a masked demon king riding a black dragon.

''Sorry to make you wait,''

Freed descends from the underworld dragon Belga Elfida.

With a thud, the hem of his robe is flipped over and the demon king leisurely advances out.

A powerful aura of magical power was rising from his entire body.

It is a super-duper demonic air that can even swallow the divine air that the Tensou Highness radiates.

''Demon king........sir.''

I'll take care of it.

Regal stared quietly at the Demon King's back as he stepped out with the announcement.

Honestly, he didn't approve of Fried from the bottom of his heart.

His power is overwhelming, but his mental laxity is unremarkable.

It's doubtful that he has the qualities of a demon king.

But for now.

Just for now........

"...please defeat him, Demon Lord........

His power is reliable.

It's more reliable than any demon race I've ever met.

A sense of relief and the excitement of watching the strongest demon king in history take on the most powerful weapon in the heavenly army welled up.

Or maybe it was the first time since I went from human to undead.

My heart is this hot and burning like this──.