I Became a Genius Mechanic at the Academy

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Julius Robert Oppenheimer.

As the leader of the Manhattan Project and the father of the atomic bomb, he gave an interview after the “Trinity” nuclear test.

“Now I am become Death, the destroyer of worlds.”

(…)

Isn’t that a remarkably fitting phrase?

Nuclear weapons are ultimately the worst means by which humanity can bring about its own destruction, a symbol of death that indirectly leads to peace.

This is evident from the fact that nuclear weapons have not been used even once since 1945.

The sheer power and destructive capability are so catastrophic that they have never been used in subsequent wars.

Humanity knows all too well that if a nuclear war breaks out, it would spell the end.

– Kugugugugugugu…

But in the end, I used ‘that weapon.’

Because I, more than anyone, wished for the annihilation of the demons.

I presented the worst invention born of human anger and enmity to the demon horde.

Of course, dropping actual Little Boy and Fat Man would undoubtedly affect the defensive barriers, so I designed it to unleash only a fraction of their power.

But even that was enough to unveil a scene of devastation before my eyes.

– Bang—!

A tremendous flash filled the space.

It was an astonishing brilliance, as if thousands of suns exploded all at once.

If I hadn’t issued ‘special goggles’ to all the soldiers just before the bombing, this overwhelming radiance would have been the last light visible to the humans present.

– KWA-BOOM!!

Immediately afterward, an incredible shockwave crashed in.

Energy released in all directions due to mass defect.

Because mass can transform into energy, and energy can convert back into mass.

The nuclear fission reaction, based on Einstein’s theory of special relativity E=mc^2, released this colossal energy.

– It is the wrath of God… God’s power has been unleashed upon those demons.

– I didn’t believe Lord Fix was the reincarnation of a Heavenly Being… but now, I have no choice but to believe.

– Ah, how beautiful… such a devastating yet omnipotent force has never, in my entire life… not once in all of history, has it been seen.

However, those who do not understand the principles of nuclear fission are hastily praising me as they behold the catastrophic spectacle brought forth by the atomic bomb.

I merely borrowed the legacy forged by my senior scientists.

People gaze at me with awe as if witnessing a god, or with fear.

As expected, this attention from the public is always burdensome.

‘What can I do? I must bear it.’

But this is my duty and responsibility to shoulder.

After all, to save this world, I must become the symbol and focal point of humanity.

With the power of Eve, and the strength of my senior scientists, I must remain calm as if this destructive force wholly belongs to me.

Ultimately, humanity needs hope to not despair at the imminent invasion of the demons.

– The shockwave is coming here! Brace yourselves!

At that moment, my ‘people’ stationed everywhere alerted.

It was the officers dispatched from the ‘Fix Engineering Corps’ who were warning of the shockwave heading this way.

– Kugu…

And then, a tremendous wind pressure struck.

A colossal sandstorm crashed against the defensive barrier, alongside various debris and rocks hidden within it. And the corpses of demons pounded everywhere.

With just the shockwave of the nuclear explosion, this place instantly transformed into a hellish landscape.

– Whiooooooo!

Being swept away by this colossal wind pressure, seconds passed.

Finally, as the storm subsided, my vision began to clear.

The interior of the defensive barrier was in disarray with various debris and pieces of demon corpses everywhere.

Everyone looked around with bewildered faces.

“There, over there!”

At that moment, one soldier pointed at a large screen.

It was the screen broadcasting the status of the demons.

– This, this cannot be…

– All those demons…

– What weapon could Lord Fix possibly…

And on the screen, there was nothing.

The sky that had been filled with countless gargoyles before the atomic bombing.

Imps and fell beasts that had filled the ground. And demon-type goblins.

That space, once teeming with hundreds of demons, had completely ‘evaporated.’

It had turned into a land of death with not a single blade of grass remaining.

[Kuooooooooo!!!]

Yet among them, some survived.

The ‘higher-ranked’ demons.

In other words, the Bone Dragon, Hell Knight, Knight of Oblivion, Blood Maker, and Baron of Hell are still alive even after the atomic bomb.

Of course, they were in a semi-disabled state.

[We will not give up. We are beings who know no fear. We will wipe you all out, who are the enemies of Lilith.”]

However, there were those who endured even after being affected by the atomic bomb.

The Death Knight, merged by the Lord of Hell, Azazel.

In other words, the final boss of this monster wave was in a considerably intact state.

‘It doesn’t matter. The atomic bomb isn’t the end.’

But I had prepared everything I could for today.

The ones who were unaffected by the atomic bomb were unexpected variables, but there was still a way out.

We have the ‘Giant Mechanized Unit.’

‘Well, if need be, I can step in myself.’

Moreover, if the Giant Mechanized Unit doesn’t work, I have a direct way to intervene.

Wearing the ‘Doom Suit,’ I am almost invincible against demons.

‘…But.’

However, the reason the ‘Doom Suit’ is so powerful is that it consumes all of my emotional energy from every iteration, so there’s a time limit.

In other words, it can only be used in moments of dire need, like a ‘finishing move.’

Therefore, it’s best to conserve it as much as possible in preparation for a final battle against the Lord of Hell.

I had already used it to defeat the Frost Orc tribe and rescue prisoners, so using it any more would be a waste.

【Prepare the Mechanized Unit.】

Thus, I instructed Eve to get the ‘Mechanized Unit’ ready.

For the demon forces that had been half disabled by the atomic bomb, this would suffice.

I changed back into the ‘Devil Suit’ and flew into the sky.

***

Melzid.

In this place where the thrones of the six great dukes of demonkind are aligned at the peak of mana, they were wearing rare serious expressions.

Edgar Fix.

Because the rate of his growth and destruction was far more powerful than expected.

【That weapon… is certainly dangerous.】

Moreover, now that they had confirmed the power of the atomic bomb, they could no longer guarantee a 100% victory.

Despite never feeling threatened during the many enhancements to Ed’s suit, they were now genuinely considering that this could be dangerous.

The chain explosions triggered by nuclear fission chilled the hearts of the great dukes.

【…It’s not just the weapon. The sheer might he displays… could reach us. If we don’t go all in during this iteration, we will be in real danger.】

And it doesn’t stop there.

Ed’s Doom Suit had completely exceeded their expectations.

To the great dukes, the ‘atomic bomb’ was just a highly dangerous substance to be cautious of, but an Ed clad in a Doom Suit was calamity itself.

Even they, as the kings of Hell, could not guarantee victory one-on-one.

【This has been made clear. We must seal him. By any means, we must seal him to fulfill our mission.】

Thus, Melfirn, the Lord of Hell, stepped forward and urged for the sealing to happen quickly.

Not knowing how strong Edgar Fix might become.

He convinced the other dukes that sealing him as soon as possible was essential for achieving complete victory.

Karaan nodded and stepped forward.

【Of course. Until the flames of hatred that cling to me burn completely, Edgar Fix will be trapped in my hatred and will never emerge into the world again.】

Previously, when the talk of sealing came up, Karaan had volunteered to become the offering.

The flames of hatred surrounding him ignited fiercely.

The stronger his hatred towards Ed burned, the more resolute Karaan’s will became.

Meanwhile, Baal, who stood next to him, nodded and spoke.

【Your noble will shall surely come to fruition. We will make it happen.】

【…】

【This time, I will also go all out. Edgar Fix will kneel before my power.】

The Lord of Hell Baal.

As he resolved to take action, the other dukes looked at him with astonished eyes.

He had never intervened, not even once, throughout Ed’s hundreds of iterations.

Because Edgar Fix had always lost without him needing to step in.

【Excellent choice, Baal. He has already slipped beyond our control.】

Thus, the dukes readily accepted Baal’s intention to enter the fray.

Particularly, Azazel, who had previously been treated as a malicious IP or malware by Ed, welcomed Baal’s participation even more.

He smirked and said.

【With your abilities, no matter how much Edgar Fix tries, he won’t be able to counter easily. It was thanks to your inherent lethargy that your existence went unnoticed.】

【…】

【But watch closely. Though my mind control was countered by that scoundrel, the remaining ones will not be easy. I may not be able to defeat Edgar Fix, but I can definitely demolish that defensive line.】

Having been ridiculed and humiliated by Ed and Eve, Azazel thought that he could redeem this humiliation by relying on the remaining ‘higher demons.’

Because his power was imbued in each of those demons, and especially the ‘Knight of Calamity’ created by merging all twelve Death Knights, which possessed battle strength equivalent to a high lord.

[- Kugu…]

However, as the defenses were completely opened up.

At the moment the tank and assault mechs poured out from within.

Azazel’s expression hardened.

A mechanized unit that seemed ready to unleash devastating firepower was streaming out in droves.

He thought they had exhausted nearly all their strength, yet where did such reinforcements come from…?

【…That is.】

Above all, a massive object trailing behind the large mechanized unit caught everyone’s attention.

The giant mechanized soldier.

The so-called ‘Titan,’ towering at 82 meters, exuded tremendous power.

Edgar, standing atop the Titan’s shoulder, glared at the remaining demons and said.

“Crush them all. This is the final battle.”