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English
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Published:
2026-04-09
Updated:
2026-09-30
Words:
2,186
Chapters:
2/?
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2
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81

The advent of Futuria

Summary:

A tale of two brothers meeting back in the face of the apocalypse staring them down.

These two brothers will unfortunately learn that their reunion was not meant to be, and the advent of the fourteenth natural enemy comes for them.

Notes:

before reading, I will be using some story specific nomination, there's 13 enemy in the story this fic is based upon, and I'm adding a single one to the list, Futuria. Fortunately, there's no humans coming from there specifically, due to plot reasons and the nature of this specific enemy XD

the list goes as follow;
-Extremia, where the game forces humanity to play until they die.
-Celestia, where Aliens have come to earth to claim it for themselves.
-Parasitica, where the parasite have taken over the bodies of nearly every human on earth.
-Titan's crown, where the titans dominate humanity from their towering height.
-Sorcerion, where the demons exists only to kill humanity.
-Indignia, where God decided he wasn't benevolent enough to save his subjects.
-Lawless lands, where humanity is so corrupt they will use each other with no mercy.
-Gaia's wrath, where nature has evolved beyond the point of humanity.
-Neo Terra, where the neo humans have enslaved old humanity for their entertainment.
-Mecha Ordinance, where the robots have outpaced humanity's comprehension.
-Ygdrasion, where the world tree siphons the earth's energy.
-Disastrous Metropolis, where gigantic Kaijuus have destroyed every human cities in the world.
-Cursed land, where the curse is killing the planet and its inhabitants.

Considering the pace of the story, I will be making a lot of assumptions about these different natural enemies, considering we have yet to see all their potential in the manga, plus the natural enemy this fic will mostly focus on, the future humanity wanting to destroy the historic humanity.

This fic will also take place sometime in the future, quite a lot after the current events of the manga, let's imagine none of the main cast I will be mentioning died to related events in the story.

(See the end of the work for more notes.)

Chapter 1: Prologue

Chapter Text

Large pillars of light spawned from the ground, many mech suits came out of them, stomping the nearby foliage.

They found themselves next to Celestia, their suits matching the aesthetic of the futuristic buildings in front of them.

Some large bull came rushing, protecting its territory against the invaders, but it got blitzed by magnetic bolas thrown at its feet and a railgun bullet into its head.

The mech suits opened, revealing humans on the inside. Their airtight suits morph and shift into more comfortable forms. “So this is it, we have arrived at our destination.”

One of the suits, decorated with many badges inscribed into the liquid metal, spoke with authority, “We have, this is the furthest we could go it seems.”

Another guard spoke up. “This is the first documented presence of the new base for humanity. What should we do now, general?”

They arrived directly after the worlds merged, directed strictly where they needed to go for their objectives, but it wouldn’t hurt to clean up the place to welcome their desired visitors, they had a lot of time on their hands after all. “We’ll tidy up the place, we can’t allow any of our natural enemies to live, because the fate that awaits us in the future will not be pretty.”

Their suits morphed back into combat mode and they all started walking in every direction, making sure to spare no one enemy entering their sight.

They were here for a specific reason, because in the future, the enemies became too strong. It all started with the world merging, but it would only end with the collapse of humanity, that’s what it meant to face against a natural enemy.

Before dying to the future they made for themselves, the last bastion of humanity decided to go back in time, to the source of every conflict plaguing their world.

They would try to prevent these conflicts, to prevent their advent, because it was the only way to truly win.

The commander ordained them to find the originator, the unstable element, the card that will change the course of history.

Zaybi.