Calamity Upon This World

"At long last, I've finally arrived at the mortal world again, all thanks to that idiot."

William shouted in excitement as he looked around at the destruction all around him.

A wide, malevolent smile formed on his face, which would make even the one Kaust had earlier look cute.

It was after a few seconds that he finally bothered to look at the previously fearsome demon, who was sweating buckets out of sheer terror.

"I guess I should first start by taking care of you," he said.

His words drained the colour out of Kaust's face, but before he could do anything, William had disappeared from his place.

'Where i-' Before Kaust could even complete his thought, he felt a hand grabbing his face and crushing it, and before he could even react, his face was slammed to the ground.

~BAMM~

Kaust was slammed on the ground with such force that the floor broke.

Not even waiting for him to get up, William grabbed his head and slammed it on the ground again.

~Bam~

And again.

~Bam~

He kept doing this till his whole body was pulverised and destroyed, leaving just a single black core in the middle.

"Ah, this must be your demonic core; no wonder that Brat wasn't able to kill you."

"Well, too bad for you. I'm feeling stressed after not being able to have fun for so long. You might not be that strong, but a punching bag like you who heals himself should be pretty entertaining."

He said this as he picked up the palm-sized demonic core and threw it aside to let Kaust regenerate.

Against his will, Kaust regenerated as the black miasma smoke formed, and from it emerged a Kaust who had a pale and horrified expression on his face.

'What just happened? he thought as he panted for breath.

Everything happened too fast for him to even react or try to resist; before he knew it, he was dead.

He had expected that to be the end, and yet, for some reason, his core was left intact and he wasn't killed.

When he looked at the insane expression on his opponent's face, he knew it probably wasn't because of something stupid like pity.

Just by looking at his expression, he knew that he was about to have a bad time.

"You're too weak; this won't be fun if you don't even try, so go ahead and give it your best shot," William mocked, his purple eyes shining brightly as his words fell.

Despite his fear, the moment he saw the boy taunting him, he lost his sense of self-preservation and had only thoughts of destruction and making his enemy pay for disrespecting him.

It didn't make sense how his mood changed so drastically out of nowhere or why he felt so affected by some childish insults.

After all, he was 6,000 years old; he should have been way past the point of letting such insults affect him, and yet he was almost hypnotised and had momentarily lost his rationality.

To make his opponent pay, he activated all the skills he had gained and mastered over the years.

[Malevolent Pressure]

[Miasmic Conversion]

[Demonic Form]

[Stuff of Nightmares]

[Terrorising Power]

[Demonic Power]

After activating all his skills, he had now achieved a whole new realm of power—the kind of power that would allow him to even fight a count who was above his rank.

Due to the absence of miasma in Astressa, it was almost impossible for Kaust to rank up; in the past 6,000 years, he had only managed to rank up once.

But that didn't mean that all the time he had spent in the mortal world was wasted.

Over the years, he had been able to observe and adapt to the skills humans or other races used, and after adjusting them to be used with miasma and fit his needs, he had gained a wide arsenal of skills and abilities, the kind of which no other demon aside from the demon king himself possessed.

Even at a lower rank, if he played his cards right and utilised his skills to their full potential, it wouldn't be impossible for him to fight and defeat multiple demons at a higher rank.

Now armed with all of his active buffing skills, Kaust was confident in being able to take the purple-eyed boy head-on.

He had already experienced how dominant he was in close range, so he instead decided to opt for long range as he activated another skill of his.

[Miasmic Skull]

Upon his command, a purple miasma circle manifested in front of him, and from it emerged a giant purple skull made up of purple miasma smoke.

This was Kaust's strongest skill against non-Miasma users, as it basically served as an extremely potent poison for them.

"Oh, not bad," William muttered as he saw the giant skulls heading his way, but strangely, instead of being afraid like one would expect when in front of what appeared to be the manifestation of death itself,.

Not only that, but multiple of Kaust's skills that he had activated were intimidation skills meant to scare the opponent and make them see the stuff of their worst nightmare, and yet despite this, William was completely unfazed by all of these skills, almost like something like fear wasn't even a concept he was aware of.

Once the skull was just mere inches apart from him, he finally decided to retaliate, and he did so by utilising an element that William had been unable to use ever since he was reincarnated.

(Chaos Spell: Ball of Destruction)

Upon his command, a single marble-sized red ball was fired from his hand and made contact with the skull, instantly destroying it in the process instead of being destroyed like when William was using mana against a miasma-based attack.

In fact, instead of getting destroyed, the ball grew even larger and made its way towards Kaust, who formed multiple barriers to try and defend himself, but all to no avail as the barriers were vaporised upon contact.

With the barriers gone, Kaust had no protection left, and he was forced to take the full brunt of the spells head-on.

And before he even realised what happened, his body was completely destroyed except for the black core in the middle, which seemed to have been deliberately left intact by William.

However, the spell didn't stop yet and instead kept moving in a straight line for multiple kilometres until it had destroyed everything in its path and was about to go through Zunesha Village.

However, just before it could destroy the village like everything in its path, it dissipated upon Williams command.

This was a chaos spell, an element made and designed purely for destruction.

There was no grandiose explosion, no big blasts, just pure, unfiltered destruction as the spell ate the very world itself.

**

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