From Warhammer to Hyperdimensional Harem

Although her own world was being gnawed at by BETA-like creatures, and due to the war against them, the world map often needed updating.

This wasn't mainly due to artillery changing the terrain—the destructive power wasn't that terrifying.

It was mainly because BETA alien creatures were gnawing and mining everywhere, making the places they passed completely unrecognizable.

So the ecological environment of this world was becoming increasingly harsh.

However, compared to the world shown in the current footage, her world was countless times better.

Setting aside the destruction this world was currently suffering from war, just from the various scenes she could see now, it was clear that even before this war broke out, this world was already extremely terrible.

This world was simply a factory—a super-massive factory that was developing without regard for any cost. So the entire world's ecosystem had already been nearly destroyed by pollution from various developments.

After moving away from the area affected by the space fortress, the surface she saw was extremely harsh—she could see what were clearly mountain peaks formed by garbage accumulation.

Garbage mountains everywhere, connected together to form garbage mountain ranges.

Initially, because his fighter was at a relatively high altitude, when looking at the ground scene, Kouzuki Yuuko had really thought those were mountain ranges.

Only after lowering altitude did she discover they were mountain ranges formed by garbage accumulation—garbage mountain ranges more magnificent than the largest mountain ranges on her Earth.

The development of this world was clearly without regard for any consequences.

Of course, if this world's environment was inherently harsh, not caring about ecology would be understandable.

The problem was that Kouzuki Yuuko could judge from various traces that forests, rivers, and even oceans had existed.

Yes, it was truly unbelievable—what kind of development could even cause water resources like oceans to dry up?

In such a world, polluted waste gases permeated the surface everywhere. Probably except for those steel forest-like cities, the outside world was a toxic world where hardly any life could survive.

Honestly, if someone from her world were suddenly transported to such a world, their first impression would be that this was an apocalyptic world.

And in a world that was already so harsh, extraterrestrial life invasion had now occurred, causing unimaginable war.

Just the destruction caused by that fortress crash—when Kouzuki Yuuko scaled it to her own world, the scope of destruction left her silent to the extreme.

It could roughly kill all life on the island nation where she lived, and might even sink it.

Subsequently, another fortress was also sliding into this planet, not knowing what terrifying destruction it would cause again.

But before it could contact the surface, unimaginably powerful bombardment blew this massive object apart.

One of the bombardment shots that seemed to miss hit the earth, destroying a mountain range and turning it into a circular crater larger than the Moon's Bailly crater.

Bailly crater was the Moon's largest impact crater.

So weapons of this power, if used for carpet bombardment of the surface, could probably really smash the planet apart and penetrate the crust.

Such weapons also reminded Kouzuki Yuuko of the weapon currently being secretly developed in her world to destroy BETA's impregnable hives—the G-bomb.

It was said that just a few at maximum power could sink the Asian continental plate.

The use of such weapons was equivalent to forcing humanity toward a dead end.

If it could destroy the Asian plate, the resulting commotion sweeping the entire world would be an unimaginable disaster. Could humanity still survive?

Were they planning mutual destruction?

Actually, after the G-bomb was successfully developed, its deployment was for use in conjunction with Alternative Plan 5.

This plan involved abandoning Earth and migrating to other planets.

When launching the migration, G-bombs would be used to destroy the old world, causing BETA and this world to perish together.

However, based on Kouzuki Yuuko's current understanding of her world's technological level, once Alternative Plan 5 began implementation for interstellar migration, the result would be that the vast majority of humanity would be abandoned.

Because the technological level was such that only an extremely small number of people could be taken to escape this world.

"So what is your purpose?"

Looking at him in the footage, piloting that fighter that seemed ready to disintegrate at any moment while narrowly dodging attacks from numerous fragments scattered by the destroyed fortress—where was he planning to go?

He didn't seem to be a soldier, and didn't appear to have strong attachment to this world, indicating he probably wasn't native to this world.

That is to say, humanity wasn't limited to just this planet—this was one of the planets they had colonized.

And this planet could definitely be confirmed as not being Earth.

When his fighter had reached its highest point earlier, almost breaking through the atmosphere, he could see part of the starry sky and a planet that was very close.

If it were Earth, the nearest planet wouldn't appear that large, and it also had obvious rings.

This indicated they weren't in the solar system either.

Hmm?

That was—

As his fighter continued forward, seemingly about to circle half the planet to the other side, she saw this side was also full of warfare.

Here, she saw an abnormal hive that seemed like an indescribably ugly flower bursting through the surface and blooming.

From this massive ugly flower-like hive, countless monsters poured out like a tide toward the human ground forces on this planet.

Although these monsters differed considerably from the BETA types in her world, Kouzuki Yuuko noticed a common point.

These monsters with insect-like characteristics, like BETA, would devour everything edible.

Even more, after clearing open ground on the battlefield, they would immediately put what they had devoured to use, beginning to create small-scale hives just like the massive industrial elevator-like breeding hives from before, hatching new companions to throw into the war.

Looking carefully at that ugly flower-like hive bursting through the surface, the area around its center was almost identical to the area around BETA hives on her side.

That is, almost everything useful in the surrounding area had been eaten, leaving only bare stone-like ground.

So the invasion of this type of creature that this world was experiencing was about the same nature as the BETA invasion she faced—like locusts passing through, devouring everything.

Ultimately, they would leave behind a dead, stone planet.

...

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