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Torthrazen, the Demon of Alchemy Knowledge.

Xoth'tith, the Demon of Magic Runes.

Urgralan, the Demon of Curses.

Iz'golen, the Demon of Malicious Thoughts.

These were the four Demons that had contracted with Lesithea and Ainz in the past, and who had tormented them afterward.

According to Belphegor, these Demons had semi-ethereal forms but could materialize themselves to fight.

They were sealed through the use of powerful Curse and Runes made by the very same power they taught to their contractors, how ironic.

Now, they were all for Chaos.

Chaos noticed the painting behind the grimoires, they were the four demons. All four of them didn't have many detailed forms, but all resembled monsters, and none of them had humanoid shapes. Their bodies held the characteristics of being very grotesque and filled with horns.

All four of the grimoires released different auras, from sickly green, dark purple, crimson-red, and black.

"My lord, you said you had the power of all consumption, didn't you?" asked Belphegor.

"Yes. The Ability said I could devour anything and acquire power from it… So let's give it a try," said Chaos, quickly stuffing a giant book into his mouth. But he discovered his mouth was too small, so he quickly partially used Vampire Dragon Transformation and transformed his small humanoid head into a giant dragon jaw, startling Belphegor.

He opened the jaws ad threw all four of the grimoires inside. He didn't even munch them, he swallowed them right away.

Gulp.

A few seconds of silence came, as Belphegor asked Chaos, who quickly went back to his normal form if he felt any different.

"Hm… No, there's nothing…"

However, although Chaos didn't realize this completely, within the depths of his very soul, the four demons had already been unsealed as his All Consumption devoured the seals and destroyed them.

The four demons emerged into a world of complete darkness, although they began to celebrate.

"We are free! Haha!"

"Foolish kid! He really did just ate us!"

"Did he thought we would easily be digested? Our very existences are different from any being in that universe…"

"Yeah, now let's get out of here so we can torment him!"

The four demons quickly flew around, trying to find some opening.

They foolishly thought they were inside of Chaos' stomach or something.

They kept looking around but found this world… to be strange.

It was complete darkness for the most part, but they also sometimes found walls made of slimy substances.

Other times they suddenly came across a giant black tentacle.

And other times they met a large crimson-red eye glaring at them eerily.

"Is this really the kid's stomach?" asked one.

"What? What would it be then?" answered another.

"T-This doesn't seem like a stomach at all! What is this accursed place?!" asked another.

"We can't even find where are we going, it is as if we were walking around a completely dark maze. And how come it is dark? Can't we see through the darkness?" asked the fourth.

The four demons realized far too late that they were inside a soul and not a stomach.

But why? Why did this soul not easily break to their demonic prowess? It was impenetrable.

And they also felt like it was a maze, no matter how much time they tried to find Chaos consciousness or weakness, they were not able to find anything!

They were lost inside a soul! How come that's even possible?!

It was all… twisting darkness, black ooze, and crimson-red eyes glaring at them.

A sudden instinctual fear began to emerge in the hearts of these malicious demons who didn't even know the concept of fear before this happened!

"What… is this?"

"Where are we?"

"Don't… tell me…"

"What?"

"This place is… The only thing I can make up for all of this is chaos! Pure chaos!"

Suddenly, before the demons could do anything, a giant mass of miasma reached to them, catching one of them and consuming him!

"Nnngh?! Nnnggaaaaagggh!"

The mass of miasma quickly disappeared, leaving the three demons in shock!

"WHAT?!"

"Oi, watch out!"

"Eh?!

As the three were too shocked, a giant black tentacle reached to another one of them, without being able to react in time due to how this strange space warped their perceptions of reality, the demon was caught by the tentacle and dragged into the darkness below!

"Grrrruuaaaah! Waaaaait!"

Splash!

A second demon disappeared, as the two left were trembling in fear!

The two realized that the darkness and chaos all around them began to twist and compact itself, as if this entire space… no, this entire world was a living being that was aiming to eat them!

The demons tried to use magic or something, but nothing came out of them!

The chaotic world's fleshy walls pressed against them, as they were crushed by the endless miasma, their cries of agony were not even heard by Chaos…

And as Chaos wondered if these Demons were weakened after being sealed for so long, he suddenly received a power boost.

His entire body began to exude a demonic aura… no, four of them!

"Oh! Lord Chaos! Look! You've absorbed their power! Amazing!" said Belphegor, flying around Chaos.

Chaos sensed their power flow through his soul and into his body, as he closed his eyes and concentrated on it…

Ding!

[Demon Souls have been successfully devoured]

[You acquired the [Demon Authority: Demon of Alchemy Knowledge], [Demon Authority: Demon of Magic Runes], [Demon Authority: Demon of Curses], and [Demon Authority: Demon of Malicious Thoughts]!]

[You learned the [Demon] Skill]

[Demon Authority: Demon of Alchemy Knowledge], [Demon Authority: Demon of Magic Runes], [Demon Authority: Demon of Curses], and [Demon Authority: Demon of Malicious Thoughts] have been integrated into the [Demon] Skill!]

[Authorities will aid at your process of learning and growing certain powers and capabilities related to them while giving you a certain passive effect that enhances your ability to use such authorities in certain tasks]

[You learned the following Skills]

[Forbidden Alchemy]

[Magic Runes Creation]

[Devil Curse Magic]

[Malicious Mind Attack]

Chaos now really felt like he gained something.

He not only gained what was called "Demon Authority", but he also acquired four new interesting Skills. These Skills, similar to the Orc ones, were incapable of leveling up, but that didn't really matter, as what they offered to Chaos was already great.

Chaos felt happy, as he felt like he did a favor to his parents.

"Belphegor, was it not possible for my parents to kill these Demons?" asked Chaos.

"It was impossible, destroying demon souls is an incredibly hard task, as their Origin comes from another plane, most attacks from this world cannot affect them as easily… Unless they are very strong! But it seems that my lord had no issue, I was right in trusting your power," said Belphegor.

"Wait, so if I couldn't eat them, I would have died?" asked Chaos.

"Certainly, that might have been a possibility," said Belphegor.

"…Oh," said Chaos.

"But you managed to eat them, my lord, just as I thought! So don't feel bad, you've already done something amazing, and now you possess the power of four Demons!" said Belphegor.

"How strong were they compared to Existence Ranks?" asked Chaos.

"Hm… Around your same Existence Rank, I would say! But they were sealed, so they were too weakened to even fight back!" laughed Belphegor.

Chaos was looking forward to practicing his new Skills, but Belphegor still had something to show him!

"My lord, now let's go see the surprise I have for you!" said Belphegor.

"Wait, this wasn't the surprise?" asked Chaos.

"Ah! Of course not! The surprise is something even better!" said Belphegor, as Chaos grew excited about what this surprise could be.

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