The Betrayed Hero Who Was Reincarnated As The Strongest Demon Lord

Red, blue, green, yellow - a different space where the light of many colors sparkles.

I was confronted by a giant crimson lion inside.

"My God's weapon, my evil demon king and others are hunting me down...

The King of Flames groaned.

Fierce flames erupted from his entire body.

As if to express his fighting spirit.

But don't let it go to your head. There is no such thing as an evil that has ever prospered- the Almighty God will destroy you sooner or later.

We can't let it destroy us.

I had a glare in my eye for the Fire King.

"I will protect the demon world.

Demons don't deserve to live.

''Why do you guys turn your backs on the demon race?　Can't we have a ceasefire?

"Demons, the evil life form, have no value in life. No one deserves to exist in the evil world of demons.

It conveys a resolute will to destroy all demonkind.

''After all, there is no bargaining chip, is there?

Well then... let's just destroy it.

I held out my hand towards him.

I'm going to concentrate my magic on it.

I'm going to aim at the wound in the armor.

I'm going to be able to take it down if I shoot "Fire" or "Thunder" at it.

Wait, don't shoot!

The Flame King's tone changed.

'Is thy purpose to bargain with me?　Let's listen to what you have to say, shall we?

You've changed your attitude all of a sudden.

I wonder.

Are they planning something?

But──even if they were to try something, considering the difference in their combat abilities, it would be enough to break the deadlock.

Since it's time to ask, I'll ask what I can.

I'm going to gather information.

"Where do you guys come from?　The demon world is supposed to be protected by wards.

First, I wanted to ask here.

Maybe the warding is inadequate and there is a pathway to the outside world.

''Did you come to the Demon World through this different space?''

No.

The King of Flames shook his head.

''This is a 'dead end' space that leads nowhere. We came to the demon world through the wards. That was about a month ago. We found a hole in the warding.

He's suddenly become so talkative, this guy.

Or is he planning to take advantage of the moment when I'm distracted by this conversation and fight back?

Nevertheless, it's a chance to get information.

I decided to ride this conversation.

''So you're saying that without that hole, you guys wouldn't have been able to enter the demon world?''

''To be precise, it's a little different. The stronger the holy power is, the greater the pathway needed to enter the Demon Realm. That's to the point of annihilating the warding itself, you know. The hole was very undersized the other day.

And the King of Fire.

That's why the gods don't lay hands on them directly, but give humans weapons to fight demons. Our Heavenly Visionary High King (Divine Gear), those with miracle armor of the level of Cutthroat Angels (Seraphs), or angels and gods... they cannot enter the demon world with just a few holes in their wards.

So you're saying that the strongest of the Heavenly Army and the brave armies won't invade the Demon Realm as long as the wards are in place.

''Then how did you guys get into the Demon Realm?''

He has reduced his power. To the extreme.

The King of Flame speaks.

''Our Heavenly Vision High King (Divine Gear) weakened his holy power to the limit and then passed through the warding. Then he went to sleep in the frontier of the demon world. Little by little, I waited for the right moment, accumulating my strength... and then I felt thy power and woke up.

Once they became weak, they raised their strength to the point where they could operate in the demon world again, right?

If this is possible, wouldn't it be possible for those who are unable to pass through the wards - heroes, angels and gods who use the miracle armor of the cutthroat seraphic level - to enter the demon world in the same way?

As for the defense system of the demon world, should we take that into account.......

''Then, the next question. What do you guys want?

'There are things in this world that were once lost to God's world.

What?

Well no, it's none of your business.

Suddenly, the Flame King's presence changed.

'The time for chatter is over. My strength is restored.

He violently spews fire from his entire body and distances himself from me.

''To bother going to the trouble of engaging in a conversation and watching from the sidelines as I regain my power is sweet, Demon King.

So the conversation was not to buy me an opening, but to buy time for me to recover.

'Sweet?　This is just room to spare.

I stuck my right hand out straight.

'I'm sorry to be so early in your recovery, but... this time you're going to disappear.

The light of magic power converges in the palm of his hand.

The guy's armor is already scarred.

If you shoot from there, you can take it down in one hit.

"Fool. You will disappear too!

Suddenly, the King of Flames rushed forward.

Its entire body emitted a dazzling light.

This is...?

What's he gonna do, blow himself up?

"Thunderburst.

I didn't care who fired the thunderbolt and shot through the King of Flame.

A huge explosion occurs.

I quickly put up the Lucifer's Shield and was unharmed.

''For a legendary weapon, it's just a bit too easy.

The moment I mumbled...

I felt a powerful presence.

"Well done, King of Flame. You've successfully locked the demon king in his lair.

A voice rang out from outside the different space.

''The signal from the self-destruct is also good. I will now proceed to the destruction of the demon race.

This guy....

As I recall, there should be three Heavenly Soul High King in total.

Perhaps it was one of them.

The reason why the King of Flame was defeated so easily was to signal the other two?

If I was lucky, they were planning to defeat me with the shockwave from their self-destruction, but...

"'Megafire'!

I unleashed the highest level flame spell.

But the Red Lotus Flame only explodes far ahead.

No challenge──?

Maybe it's because this different space is too big.

I was going to create a rift in the space to escape, but it might not be easy.

'Judas, Feria!　Hold off the other two until I get back!

I raised my voice.

'Demon Lord?'

Don't you want to get out, Demon King?

I can hear Feria and Judah's voices.

Apparently, the conversation can reach outside.

Or maybe Feria or Judas was able to detect my words through their power.

It's a good thing that we can communicate with each other.

I'm not sure what to make of it. It might take us a while to escape.

I'll explain.

"In the meantime, I need you guys to protect the demon world. In the meantime, I'll be there in a minute...

*

The Divine Weapon created by God to fight the Demon King, 'Divine Gear'.

One of them - the Water King.

Stella was looking at the blue giant dragon with a grim expression.

''What a magical amount of power...!

He scanned (scanned) with his third eye and groaned.

The enemy in front of me was equipped with magic power equal to or greater than the Demon King class.

Except for Fried, who has a substandard status even among the successive Demon Kings.

In other words, the opponent they were trying to fight was as strong as or stronger than the Demon King.

(Can we win... no, can we stand up to them?)

Do you know what his weakness is, Madam Stellar?

Regal asks, holding his sword at the ready.

''I can't find it. His armor repels magic. Probably even your energy drain can't do any damage. The only way through would be a physical attack.

Hm. You mean, I'll just take the sword down? Easy to understand.

Regal stepped forward unceremoniously.

"Want me to join you, Regal?

A huge dragon descended from the sky above.

It's the Underworld Dragon, Belga Elfida.

I'll take a look at it first. You are to stay back.

Regal shook his head.

''There are a total of three Tensou High Kings. There may be more to come out, you know.''

''The opponent's firepower is of the Demon King class. No matter how much of an immortal demon you are, if you can annihilate its existence itself, it's over. Be careful.

Who are you talking to?

To Stella, who was advising him, Regal returned a gruff line.

''Anti-Demon King weapons? No shortage for the opponent.''

The skull swordsman and the Water King faced each other head on.

The distance between them was probably about a hundred meters away from each other.

''The 'Immortal King (Lord Undead)', Regal Vana Sentra - I come!

He is the swordsman of the skull who kicks the ground.

"Go away, you evil demons.

The Water King spat out a stream of water from his mouth.

''Hades Blade!''

Regal's slash slices it in half.

''Ho, a magic sword that can cut through water as well?

This isn't even a check on you!

Regal wielded a disastrous sword designed to look like a combination of bones.

The sword swung down in a fury.

Snap.

It snapped with a dull sound.

"My sword...

His armor seems to be protected by a high-pressure water blade. "Carelessly go away, Regal.

Stella tells me.

'Hmm, does that mean we have a good physical attack plan?

Regal took a swing at the broken sword.

The scattered bone-like parts came together and regenerated into the shape of a sword in a matter of seconds.

''But just like me, my sword is also immortal. Next time I will cut you to pieces.

Demons will be eradicated. That's it.

The Water King announces quietly.

The fight to the death has resumed.