The Betrayed Hero Who Was Reincarnated As The Strongest Demon Lord

I was facing Regal with my sword drawn.

'Regal, what are you doing!　Against the Demon King!

Why is this a surprise to you?　I've always done this. The most important thing - I will always use my own sword to test it. That's all.

Regal says to Stella, who raises her voice.

A warrior to the core, huh?

I have mixed feelings about the story of how he destroyed three kingdoms in the human world, but....

But for now, let's just focus on the fight against this guy.

Stella, it's okay. Just stay back.

But, my dear Demon King.

This is your 'dialogue' in your own way, Regal.

Goodbye. I am going to kill you, sir.

Regal held a long sword designed to look like a combination of countless bones.

The seamless stance is as good as it gets.

''Come.''

I'm here!

He announced and kicked the floor, Regal.

It's not possible to believe that he's wearing heavy metal armor, it's a tremendous speed.

I guess he's trying to close the gap between me and the magic-focused fighters.

"'Energy Drain'.

But when you think about it, a pale white light starts to leak out from Regal's whole body.

As soon as I touched that light, my strength drained from my body.

This is the energy drain?

This is a life-force-absorbing spell used by undead (undead) demons.

"It's too defenseless. You're too defenseless... huh?

It's nothing to worry about.

I put up a magic barrier and told him.

It's just a spell.

They can't penetrate my magical defenses.

But it's more physically demanding than I thought.

"Then this is it...

Regal accelerated further and slammed his bone sword towards me.

With a clank, there was a metallic sound, and Regal's slash was easily rebounded.

''It's useless. Neither physics nor magic can penetrate my barriers.''

I defend myself, but release an attack spell as a check.

But Regal's reaction is sharp.

Flames, lightning, water streams, and earthen spears.

With a single sword, I blow them all away.

''Let's return to that line as it was. No magic is useless before my sword,''

Strong....

I couldn't help but gasp in admiration.

As expected of a demon army chief, I should say.

In addition to swordplay and current reactions, he also controls spells like energy drain, and is an extremely troublesome warrior if you turn him into an enemy.

If it were only simple combat power, he might have surpassed Yulisha the First King.

Why did such a Regal approve of Yulisha?

The "strength" this guy talks about is not just an individual's ability to fight.

Then what kind of "strength" do I have to show?

I'm different from Yurisha, my strength.

If I can get them to recognize that, will Regal become a loyal servant of the Demon King?

To be one of the key players in the defense of the demon world──.

"Why hasn't he attacked us, Master Freed?

The sharpness of Regal's slash has increased.

Although it couldn't break my magic barrier, a shockwave blasted out with each swing of the sword.

The walls of the mansion shattered and blew away.

''There's no reason for you to hurt my entourage. I just want to assess your power. Just as you try to assess me.''

You don't want to hurt me, I suppose. You're very kind.

A slight sneer laced Regal's voice.

''If you were Lady Yulisha, you would have attacked me with the intention of killing me.

"...I'm not the same king as the last one.

Yes, it's too warm!

Regal's arms suddenly disappeared.

No, no.

A killing atmosphere appears behind him.

When I turned around, there was only a bony arm and a long sword.

You took advantage of your skeletal body, separated both arms and flew them behind me!

'Hellblade'!

A long sword with a glow of magic power was struck.

There was a snapping sound and a crack in the magic barrier.

''Fire!''

I turn around, undo the barrier and release a fireball.

Both arms and the sword of bone are instantly burned and melted.

And one more shot - this time to Regal, who has lost his arm.

"Ouch!

The skull swordsman instantly regenerated both arms and bone swords while backstepping.

He easily cut both sides of the approaching fireball.

''Why the lowest level spells and such. You could have slaughtered me if you released a more powerful spell.''

Even if you say so, the Demon King's power is too powerful.

Even the "fire" just now, if you fail to control it, the people around you could be harmed.

"You're going to go easy on me.......are you trying to play me for a fool, Mr. Freed!

But that seemed to spark Regal's anger.

Maybe it's a warrior-like personality, but he doesn't like the fact that I'm saving my strength.

'You are strong ... but too sweet.'

Regal rushed forward again and swung his sword.

How am I supposed to fight?

While hesitating, he deployed his magic barrier again.

The slash is easily repelled.

"The iron law of battle is to kill before you are killed - I have lived for thousands of years on such a battlefield.

Regal doesn't flinch.

No matter how many times his attacks are played, he never gives up and comes at you.

You understand the difference in power, but it's a great fighting spirit.

''The current situation in the demon world is the same. You have immense fighting ability. I can tell just by the signs. Perhaps even compared to Yulisha-sama and the previous demon kings, the power that is separated from them - hahaha!

Six consecutive blows that almost seemed to have altered the tip of the sword.

Another crack appeared in the magic barrier.

This guy is so good──.

"But why don't you attack the human world? I'll let you alone destroy the humans!

'It just creates a cycle of killing each other. And I want to stop it.

The Demon King's power is too strong.

If a battle were to take place in the human world now, it would cause a great deal of damage before it could get to peace or a ceasefire.

The uncontrollable power would sow great destruction in the human world.

''I say that is naive!

Regal wielded his long sword.

The sword's snarled blade, which looked like a combination of bones, was coated with purple magic power.

Is he going to unleash an all-out strike?

''Energy Hand.''

Aiming for that momentary opening, he created a magic hand and caught Regal.

''d*mn, this is........''

He crashed through the roof of the mansion and pulled it up to about twenty meters in the air.

''Fire Arrow.''

Then he releases an arrow of flame.

The lowest level spell── although its power is enough to wipe out a mountain── but it is a flame spell that is one rank higher than the lowest level spell── but it is a flame spell.

''Gah........aaaaah...!

With a cry of agony, Regal's body exploded.

Countless bones fell and scattered on the ground.

Nevertheless, the skull swordsman still regenerated back to normal.

''I told you it was sweet.......As long as I, the undead, do not completely disappear I will regenerate like this as often as I can.''

Yeah, I know.

I had to squeeze the power out of the shot so it could regenerate.

Then you'll have to make up for that laxity.

I looked at Regal.

My gaze through the mask collided with the red eye light that straddled the skull's eye sockets, sending little sparks flying.

'Fight under me, Regal.

I announced and raised my right hand up to the sky.

I could see the black sky through the hole left by the earlier exchange.

The sky of the demon world, where there is no sunshine at all.

The sky, which symbolizes the dark anxiety that surrounds the entire demon world.

''Megafire!''

To the heavens, I'm going to unleash

The Demon Lord's most powerful flame spell.

"This is...

Regal found himself gasping for air.

The black sky was filled with crimson light.

The magic world, where there is no such thing as sunshine, is filled with a radiance that is more dazzling than the sun.

"This is Freed-sama's........power. This is the power of Mr. Freed's....

Looking up at the red sky, Regal murmured.

''Well I still don't see your vessel.''

Turning to me, the skull swordsman took a small breath.

''Let's admit that you are indeed capable of separation. I could also feel the strength of will. However, that idea is still naive...

Then you're on my side from now on. Can we just suspend judgment for now?

"...You, my king, are...

"If you don't think I'm fit to be king, then go ahead and try again. I'll accept.

Regal was silent for a moment.

So for now I give you my sword, my demon king, Mr. Freed.

He knelt at my feet and gave me a deep bow.

Seems to have received some recognition.

Tentatively - but.