Chaos and Order - A Multiverse Fanfic

A few moments before,

Kai didn't show it, but his heart had been beating wildly for a while.

It was one thing to put up a performance with the help of the Ad Infinitum and the Lucky Intuitions, knowing what to say and when.

It was another thing entirely to leave how the Hashiras would perceive his intentions without any interference.

What if the Hashiras didn't move because of his sincere feelings?

What if they rejected his pure intentions behind the demonic acts?

What if they didn't accept his blessings of becoming a demon even after all this?

He had already bluffed in front of Kagaya that he could take the battle to Muzan whenever he wanted — a pointless thing to mention considering he was a Faceless.

Kai wasn't sure about killing Upper Rank One, much less needed to be said about the Demon King, who was being posessed by the Timeline for HER rebellious goals.

The Demons were getting stronger by the day - a point Kai confirmed after seeing Zohakuten's Resurreccion.

Kai could solo this one, true enough.

But there were Upper Rank Two and One as well.

Not to mention, Kai was sure they could go beyond Resurreccion.

A heavy feeling settled in his heart as he thought about fighting Muzan, because Kai knew if he wanted to rule this world, he must face the Demon King and the Timeline together now.

As if that wasn't enough, then there was the feeling of doom hanging on his neck ever since he had fought Black Ghost.

No. He couldn't afford to fight Muzan now until he focused on his survival first.

For that, Kai must gain greater power.

Bankai. A new Verse Fusion. Overpowered Hashiras. His Clan.

Kai needed absolutely everything.

He couldn't afford a single error here.

So, when Kai saw Shinobu and Rengoku facing death, he knew the moment had come.

…

[Activating Demon Progenitor] The Ad Infinitum beeped.

Ever since Kai had acquired this Skill, he had wondered how to unlock the Upper Moon Effect.

Sure, the B- Skill was a Growth-type. However, there were no concrete mention of unlocking the effect.

Before, Kai had believed that he must needed an internal or external element to unlock it, just like Focus Punch of Golduck-Kai.

However, it was only when he was talking to Shinobu and Rengoku about his intentions that Kai learned what the element Demon Progenitor demanded to unlock the Effect.

It was Willingness!

The more I progress the more complex the Skills are becoming… Kai analyzed, looking at the Stats.

And that 8th point was…

...

[

Skill: Demon Progenitor

Grade: B- (growth)

Specifications:

 — The Demon King can nurture Demons

 — The nurtured Demons can have both permanent and temporary Stats

 — The strength of temporary Demons will vary according to the Stats supplied

 — The strength of permanent Demons will vary according to both the Stats supplied and their original strength before the transformation

 — The permanent Demons will be of growth type, but their transformations will be irreversible

 — The strength of the nurtured, permanent Demons will also vary according to their hierarchy under the Demon King

Requirement:

 — Title - Demon King or above

 — A Consciousness-related Ability

 — Spiritual Class - Great or above

 — 1st Threshold

 — Correspondence >25

 — Breath >25

 — Worth >50

Attributes:

 — All Demons are divided into two groups - Ephemeral and Demon Moons

 — The Ephemeral Demons will undergo a temporary transformation, irrespective of their will

Note: Failure to undergo a successful transformation will lead to either loss of Attributes or uncontrolled mutation or death

 — The Demon Moons are further divided into Upper Ranks and Lower Ranks

 — All Lower Ranks Demon Moons will have the same requirement

 — The Upper Ranks Demon Moons will all have their own requirement

 — The Demon King can nurture 20 Ephemeral Demons, 6 Lower Ranks Demon Moons, and 6 Upper Ranks Demon Moons

 — Once all slots of Demon Moons are full, the Skill will upgrade

Effect: Ephemeral Demons [4/20]

...

Effect: Upper Ranks Demon Moons

Note:

 — Ten Units of Demon King's Consciousness

 — 15% of Demon King's Body Mass

 — Life Consumption 250 HP

 — Breath Consumption 200 SP

 — HP Regeneration Rate -99% [Cooldown 12 hours]

 — Stats will vary with each Candidate

 — Probability of gaining a Blood Demon Art: 100%

 — The Candidate must show absolute Willingness to become a Demon

…

Please select the Candidate…

]

…

[Rengoku Kyojuro] the AI beeped. [Shinobu Kocho]

…

[

Candidate - Rengoku Kyojuro

Willingness - 100%

Requirement - To never raise his sword against Innocents

…

Candidate - Shinobu Kocho

Willingness - 100%

Requirement - To be always by your side

…

Do you accept the Requirements, Contestant Kai D. Stormborn?

Note:

 — Once accepted, the Requirements will become a part of the Demon Progenitor's Stats

 — Upon the Requirements' failure, all Active Attributes -10 Permanently

 — Upon the Requirements' failure, Demon King will not remain Standalone Title

 — Upon the Requirements' failure, Demon Progenitor will lose Upper Ranks Effect

 — Upon the Requirements' failure, Demon Progenitor Skill will drop by 5 Grades

…

WARNING: 100% probability of Timeline Backlash upon choosing Rengoku and Shinobu as the Candidates

]

…

Kai stared at Shinobu's requirement a touch more, ignoring the mention of Backlash.

Now that he knew what the Timeline was up to, he didn't care much about what IT thought of his selecting storyline Characters.

[Accepted] The AI declared for him, activating Timeline's Applaud nonetheless.

Horrayyyyyyyy!

Clap-clap-clap!!!

Kai's surroundings suddenly lit up with wizards and witches' thunderous applause. As this was Verse Fusion, the Harry Potter Timeline decided against coming Herself, it seemed.

Simultaneously, Black appeared behind Kai and ripped off his arms, representing 30% of his Body Mass in a theatrical performance.

…

Presently,

The Flame and Insect Hashiras looked at the distant, colossal demon representing the years of pain and suffering of innocent people.

In front of them, purplish globules of blood hovered mysteriously.

With a smile on their faces, they devoured the blood, their hearts crying out with resolve.

Silence.

…

Ba-dump!

The Hashiras' screaming hearts thumped louder than ever.

Their injuries healed. Missing limbs regenerated. Their breath felt stronger than ever.

Ba-dump!

The Demon Slayer Marks pulsed on their bodies.

One…

Two…

Three…

And then a fourth mark appeared, defying all odds.

Ba-dump!

"Bankai…" the Hashiras uttered, a grand, bloody mist hiding them from the sight.

Ba-dump!

Boooooooooom!!!

Ryūjin Zohakuten's black-red dragon fired another breath, obliterating the spot where the Hashiras were standing.

However, as the cloud of dust and fire roared up, one could spy on two beings hovering midair in the sky as well.

FIRE had claimed this demon.

His skin had gained fissures, with fiery veins pulsating on his body. On his head, there were two, curved horns, glowing red hot.

He was standing on the head of a fire dragon, holding his red, curved sword.

His eyes were blobs of lava, bubbling with the Kanji of 1 in place of pupils.

Behind him, his yellow and red long hair fluttered against a background of sea of fire.

Upper Rank One - Rengoku Kyojuro, the Flame Hashira!

Flying next to him was VENOM.

Her skin was a mix of purple and violet, a sea of wisteria flowers blooming behind her. On her back, large, multicolored butterfly wings fluttered, enchanting the surroundings.

Her snake-like eyes were burning hazel, glowing with the Kanji of 2 in place of pupils.

Upper Rank Two - Shinobu Kocho, the Insect Hashira!

ROARRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR!!!

The HATRED roared at FIRE and VENOM, dozens of dragons letting out world-ending roars.

The dragons opened their jaws and fired pillars of destruction into the giant hole in the demon's chest.

Blood Demon Art —

Ryūjin Zohakuten opened his mouth and painted the world with black.

— Dragon God Cero!!!

Time melted away, bending the space along with it.

"Blood Demon Art — "

Two voices rang out simultaneously.

Rengoku lifted his sword and slashed down, breathing out fire.

"— Flame Heaven!"

Shinobu's wings fluttered, secreting a cloud of purple fog.

"— Wisteria Hell!!"

Sky collapsed.

Earth shattered.

In between, everything rotted and burned.

A thin line of redness cut the Cero in half, reached the colossal demon, and passed right through it.

Simultaneously, hundreds of butterflies danced around Zohakuten, bringing a purple fog along with them.

CRACKKKKKKKK!!!

The titan's two halves separated, his flesh scored black.

Within his body, everything rotted instantly.

Hidden within the collapsing demon, Hantengu screamed as the poison and fire claimed his existence.

The sky suddenly gained color as the blackness brought out by HATRED vanished.

From the distance, golden rays of the sun fell on the demon, incinerating them to ashes.

The sunlight went beyond and fell on two more demons in the sky; their heads high.

And as the warmth of the sun reached their hearts, a little smile surfaced on their lips.

*****************

AN: Character Images of Flame and Insect Hashiras' Demonification are available in this chapter

I will not show the demonification of the rest of the Hashiras in this volume, because, let's be honest, they each deserve their moments. By the end of the Harry Potter Main Mission (for which Kai will need to face Muzan first), we will have covered all the Hashiras.

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