The Betrayed Hero Who Was Reincarnated As The Strongest Demon Lord

A dark world where the sun does not shine.

A murky wind tangles my tied-up blonde hair.

The sodden air clings to my skin.

An unpleasant place.

The first time Fiore Kuehl landed in the demon world, his impression was that simple.

A place where demons, not people, dwell.

It felt right in the senses.

It's a place of evil, a nesting place.

Born a nobleman's daughter, she was honored by her family as one of the strongest 'Sacred Edge'

I'll reap all the evil that nests in this disgusting place and make the name of the Quell family roar more than ever before──.

That's what I've decided.

You're going to go. I will get to the Demon King's Castle in the shortest possible time and defeat the Demon King in the fastest possible time.

It was Ludmilla who told him.

I know. The four of us now have the power to make up for it, so the demon king is no match for us.

Next to him was a young man, Theon, dressed in a wizard-like robe.

''I have only to fulfill my mission.

The knight in full body armor, Liavert, nodded.

'Elio and the others must be ahead of you.

Fiore said.

Erio is her brother.

He is a brave man who controls the Miracle Armor of the fourth-ranked "Lord Angel (Dominion) Class" and a young hopeful who was chosen as one of the first members of the mission to invade the demon world.

(Be safe, Elio...)

In truth, I was against him becoming a brave man.

He doesn't have the same qualities as Fiore.

He just admired himself as an older sister and entered a heroic training institute, knowing his lack of talent.

And he obtained a certain amount of power.

My brother is much stronger than an ordinary brave man.

But in the eyes of Fiore, the Four Heavenly Holy Swords, who was considered the strongest, his strength was dangerous.

I have to meet up with him soon........

Struggling with the desire to deviate, Fiore started to advance through the demon world with the other three.

Fiore and the others continued on the city road and reached a city surrounded by huge walls.

It's a rather large city compared to other cities.

''We won't let you pass from here.''

A skull swordsman clad in old-fashioned armor stood before him.

Furthermore, with a bang, countless moving corpses (zombies) appeared from the ground, and a crowd of dead spirits oozed out of the air.

The entire Undead Army had appeared.

''I am the Demon Army Chief Regal, who controls the Second Army of the Demon King's Army. All those who avenge the demon world shall be the dew of my sword.''

Regal holds a creepy sword that looks like it's made up of countless bones.

'No one can stop us now,'

Ludmilla grimly said, holding her bow-shaped miracle armor, Raphael, in her hand.

''I'm going to kick your ass, guys.

The words were full of confidence.

And rightly so.

They had become immeasurably stronger through their training during the oracle.

'Yes.'

Nodding, Fiore holds his fine sword-shaped miracle armor, Michael.

It's the first battle with new power. Shall we go with a flourish?

Theon carries the spear-shaped Miracle Armor "Gabriel".

"All I have to do is make my way to the Demon King in the shortest possible distance.

Riavelt held up the huge hammer-shaped Miracle Armament "Uriel".

At the same time, a jet-black costume - a black vestments (chaos jacket) enveloped everyone's bodies.

'............

With Regal's short words, the battle began.

The miasmic shockwave of miasmic death spirits released a miasmic shockwave, and the zombies narrowed the siege from all sides.

''Type-2, maximum armor (Axel-Sau) round precision firing (Zand-Arrow)!

Thousands of arrows of light released by Ludmilla shot the zombies together.

The holy power causes all the zombies to stop moving and disappear.

''Type 2, Cherry Blossom Flame [Fire Flower Buster]!

Flames swirled out of Fiore's fine sword and flew out in a whirlwind, burning away the dead spirits.

''Well we're out of luck, aren't we?''

Absolutely.

Behind him, Theon and Liavert looked a little rusty.

And.

My men...

Regal kicks the ground and rushes forward.

It's so super-fast that it's hard to believe it's clad in heavy armor.

I'm sure you'll be able to find out more about this.

With a crunching sound, both of Regal's arms were cut off.

''──Eh?

No, no.

Before she could cut it off, the enemy's arm was cut off by itself.

The left and right arms slid directly through the air.

'Hades Blade'!

A bone sword covered in miasma is unleashed from behind.

I couldn't avoid the slash, and it struck my back.

What.........?

Regal shouts in surprise.

"If it was me before, that blow would have killed me. But...

With a smile that was filled with grace, Fiore reasserted his fine sword.

It's not just a matter of time before you'll be able to find a way to get a job.

The miasma of the miasma is not a good thing when you're wearing a black vestments or chaos jacket.

This time she rushes forward.

Now without both arms, the skull swordsman is defenseless.

''I'm going to end it──''

Ouch.

Regal brought his arms back to his body in the nick of time and caught the blow with his bone sword.

As expected of a demon army chief, he was tough.

But....

"Aura burst!

Fiore shouted.

At the same time, the divine energy rising from his entire body swelled up several times.

''The power still goes up........?''

Swallowing down Regal's astonished voice.

''I told you that I would end it........''

They didn't stop walking until they met up with Elio.

Fiore's slash, clad in flames, cut both swordsmen of the skull off.

*

I was dressed between Stella and Feria.

''Come on, Demon King-sama. What do you think of us?　Just a subordinate?　Or will they see me as a woman?

And Feria.

No, what are you talking about all of a sudden?

"Do you prefer Stella to me?　Sometimes it's a good vibe.

I'm in a good mood...

Stella's cheeks relaxed for some reason.

''Well, me and the Demon King-sama...''

'Huh, Stella is a pretty thing. You can be proud of yourself.

Really, Feriah?

Pretty, pretty, pretty.

You're actually a very nice guy.

What do you usually think of 'really'?

No, no, I'm sorry. I didn't mean it.

Stella bows her head in a bow to a jit-eyed Feria.

No, no, no, no, no, the story is going off in a stranger and stranger direction.

And.

Excuse me, Your Majesty.

The newcomer was Zegert.

'I'm here to report.........are you taking in?'

The Beast Emperor looks at me, Stella and Feria in turn and smiles at me.

''No, it's nothing. ''Report, what do you mean?''

I've just received word from a messenger.

Zegart tells us.

"It seems that Regal and the Second Army, who were fighting in Zilegga, were defeated by the brave men...