Upon learning of the invasion, Regalzeva and Melvazoa immediately mobilized their forces and began advancing toward Izumi's position.
They had already analyzed the battlefield.
Among all the invading armies, Izumi's force posed the greatest threat.
In warfare, capturing the leader meant breaking the enemy.
So the two brothers gathered their main army and marched directly toward Izumi.
If they could eliminate him—
The rest of the invading forces would be easy to deal with.
After all, in their eyes, the others were nothing more than expendable cannon fodder.
But if they ignored Izumi and focused on the lesser troops instead…
There was a real possibility that their entire world would be conquered by that one man.
Therefore, they had only one choice.
Kill Izumi first.
Then turn around and crush the rest.
With that decision made, the brothers led their enormous army straight toward him.
...
Meanwhile, Izumi's forces continued advancing deeper into the EXE World.
The entire world was filled with mechanical lifeforms.
Some of them weren't even combat units—many were merely mining robots that didn't even reach F-rank strength.
Against such enemies, Izumi didn't even need to lift a finger.
Aiba Asagi, the "Electronic Empress," simply unleashed a digital virus.
With a single attack, huge numbers of machines collapsed.
The mechanical defenders couldn't slow their advance at all.
Even when stronger units appeared—A-rank or S-rank mechanical soldiers—
They were no match for Izumi's army of girls.
Izumi's forces moved forward like a swarm of locusts, sweeping across the land and destroying city after city.
The architecture of the EXE World was almost entirely constructed from steel and machinery.
Strangely enough, very few of these cities had any real defensive measures.
Apparently, Regalzeva and Melvazoa had long believed that their world was completely secure.
No one had ever invaded them before.
So they had never bothered to waste resources building large-scale defenses.
Ironically—
That arrogance had given Izumi the perfect opportunity.
City after city fell with astonishing ease.
And it wasn't just his army.
The same thing was happening at the other three dimensional gates.
No one had expected that conquering the EXE World would be this easy.
Since entering the dimension, Izumi's forces had already captured several cities.
A vast stretch of territory had been taken with almost no resistance.
Even the army led by Sirzechs Lucifer was achieving similar success.
Watching another city fall effortlessly to his forces, Izumi smiled slightly.
But the smile soon faded.
His expression turned serious.
He looked toward the distant horizon.
Several terrifying presences were approaching at incredible speed.
Seeing this, Izumi waved his hand and gave an order.
"Fall back behind me!"
The moment his voice rang out, everyone stopped what they were doing and began retreating.
Avrora and Ophis instantly appeared beside him.
They had also sensed those overwhelming auras.
The real threat had finally arrived.
Before the enemies even came into view—
A terrifying attack descended from the sky.
Wherever the energy passed, space itself collapsed.
Izumi's pupils shrank.
Without hesitation, he activated his authority over space.
In an instant, he transferred the girls behind him into his personal world.
Only a handful of fighters above SS-rank remained.
Anyone below S-rank was no longer capable of participating in the coming battle.
After making those arrangements, Izumi and the remaining fighters teleported away.
BOOM!
The attack struck the ground.
Within a hundred-kilometer radius, everything was erased into nothingness.
By that time, Izumi had already moved thousands of kilometers away.
Looking back at the massive mushroom cloud rising into the sky, Izumi inhaled sharply.
These enemies were truly terrifying.
...
The first figure to appear before him was Regalzeva.
He was the Mechanical God of the EXE World—
The monstrous entity known as the Tyrannical Evil Machine Deity.
He stood nearly seven meters tall, his body colored in dark violet metal.
Five glowing eyes stared directly at Izumi.
Floating behind him was Durumado.
Durumado was one of the Heavenly Kings created by Regalzeva, known as the Sea King of the Jidu Heavenly Seas.
The other Heavenly King, Lugatim, had already been destroyed by Izumi earlier.
Durumado's body was enormous—over one hundred meters in length, resembling a mechanical sea creature.
Its strength was comparable to the legendary Great Red.
Behind it stood countless subordinates belonging to both Durumado and Lugatim.
Even the infamous Five Evils had gathered here.
On the other side stood Melvazoa, Regalzeva's younger brother.
He possessed an immortal body, along with terrifying abilities:
He could manipulate existential concepts, control time, and resurrect through reincarnation techniques.
Behind him were the elite warriors known as the Seven Luminaries of Rot.
Both brothers had arrived in person.
Seeing the full lineup of the EXE World's forces, even Izumi felt slightly shocked.
The brothers themselves were rated SSS+, only a step below the Transcendent-class anomalies.
Yet their special abilities made them extremely dangerous opponents.
And their subordinates—
Every single one of them possessed SSS-rank strength.
It was an utterly insane level of power.
...
Looking at them, Izumi suddenly felt his blood begin to boil.
For the first time in a long while—
He felt danger.
These enemies possessed the power to kill him.
Izumi licked the corner of his lips.
Then he glanced at the people behind him.
"Grayfia."
"You should go back."
"This battle isn't something you can participate in."
"And the rest of you as well."
Before anyone could protest, Izumi immediately sent them into his personal world.
Only three people remained.
Izumi.
Ophis.
Avrora.
After sending the others away, Izumi summoned Alaya and Gaia.
The two girls appeared beside him, their expressions extremely serious as they faced the enemies ahead.
They showed no fear.
After all—
Their strength had also reached SSS-rank.
But Izumi wasn't finished.
Next, he summoned the Beasts, including Tiamat.
These were all powerful existences capable of confronting the enemies before them.
...
Regalzeva and Melvazoa didn't attack immediately.
They simply floated in the sky, staring coldly at Izumi.
To them, he was already a dead man.
No matter how many allies he summoned—
They believed he could never defeat them.
They had absolute confidence in their power.
Once Izumi finished summoning his allies, a feral grin spread across his face.
"Now then…"
"Let's wager the fate of our worlds."
"And have ourselves a magnificent battle."
He pointed forward.
"Choose your opponents."
"Avrora, come with me."
"Those two are ours."
The moment he finished speaking—
Izumi charged forward.
At the same time, the summoned Beasts and other allies launched their attacks as well.
A terrifying roar shook the sky.
The battlefield erupted instantly.
None of the beings Izumi had summoned were weak.
Each one appeared in their peak state.
Meanwhile, Alaya and Gaia activated the full range of abilities from the Type-Moon world.
Their eyes turned into radiant rainbow colors.
The Mystic Eyes of Death Perception activated.
Then—
In the next instant—
Both girls vanished from their positions and rushed toward one of the mechanical lifeforms like flashes of lightning.