I Became a Genius Mechanic at the Academy

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– Gugugugugugung!

Ed’s Doom Buster is activated.

The essence of technology, where modern and otherworldly sciences such as fluid mechanics, mechanical engineering, thermodynamics, and mana mechanics are intricately combined, sets in motion thousands of precisely designed machine parts.

Ed’s emotional energy is converted into mana, supplying power to thousands of mana stones.

Explosive force bursts forth from the gas, empowering the massive mech with incredible speed.

With a single leap, it closed the distance in an instant.

– Whoosh!

Ed’s enormous lightsaber slashed at Nergal.

Though Nergal transformed into the mythical beast ‘Behemoth,’ Ed’s lightsaber was a high-concentration energy mass, gathering emotional energy and various thermal energies.

No matter how tough the skin or shell, it had to be cut.

【Where do you think you’re going!】

As Nergal with his severed tail staggered, another Lord of Hell came to his aid.

The flames of Fearfire Karaan spewed forth in hundreds of degrees.

Nightmare’s dominator Izazel attempted a mental attack once again.

The ominous brainwaves filled with terrible curses and flames scorching the earth along their passing path surged toward Ed’s Doom Buster.

– Chiiiiiik!

The P.A Field (Personal Area Field) was activated, wrapping around the Doom Buster.

The thermal energy forming the P.A Field and Karaan’s flames annihilated each other, causing the massive fire to vanish.

Izazel’s cursed brainwaves were also blocked by frequency interference.

【Let’s see how long you can keep this up!】

However, receiving the huge energy mass emitted by the Lords of Hell consumed a significant amount of energy.

Izazel and Karaan continued to unleash massive flames and cursed brainwaves toward Ed.

【Grurrrr!】

At that moment, Nergal, who had instantly recovered, charged toward Ed.

The gigantic spear created by Melfirn also shot swiftly toward Ed’s rear.

– Whirrrrr!

– Tzuzuzuzuzut!

– Kwaaaang! Gugugung!

… Each impact had a destructive power capable of obliterating a kingdom.

The world watched this spectacle on a gigantic monitor.

The fight they were witnessing evoked a sense of awe reminiscent of the war of the gods in ‘Genesis Myth.’

A fire powerful enough to incinerate tens of thousands of people encircled the Doom Buster, a tidal wave of ominous magic enveloped it, and a monster the size of several dozen meters pounded the P.A Field.

Gigantic spears the size of palaces flew in waves, striking the P.A Field and shaking the ground.

People looked on with fearful eyes at the calamity wielding such nonsensical power, believing that Edgar Fix would be defeated.

The strength wielded by the Lords of Hell transcended their imagination, representing the ‘power of God.’

– Whoosh!

But then, at that moment, the P.A Field was released, and Ed’s gigantic lightsaber split space in two.

A sharp energy burst forth along the trajectory of the swing, cutting through everything in its path.

A red line appeared on Nergal’s body as his upper half crumbled and fell to the ground, his lower half collapsing without a torso.

【Wh-what!?】

And just then, piercing through the thick smoke, the Doom Buster emerged.

The Doom Buster charged straight at Karaan, seizing its neck and driving it into the ground.

Then, it poured the dual annihilation energy of the P.A Field onto Karaan, leading to the annihilation of the flames forming its shape and the energy of the P.A Field.

An immense cloud of steam erupted as Karaan’s form began to shrink.

Karaan screamed in agony, causing the earth’s air to heat up intensely.

– Thud!

At that moment, the leader of the Lords, Melfirn, struck the Doom Buster away.

With the impact, the Doom Buster was instantly shoved dozens of meters back but managed to stabilize itself and land on the ground.

As the Doom Buster rose again, Nergal fully recovered from his halved body while Karaan was gathering the dispersed heat.

Melfirn glared at Ed and spoke.

【In the end, you’re bringing about your own destruction, Hadoyun. Or should I now call you Edgar Fix?】

While Melfirn spoke, Nergal had completely regenerated and stood up.

He shed the body of Behemoth and was transforming into the Greek mythological beast with 100 dragon heads, ‘Ladon.’

【I will truly come at you. I’ll pour everything we have to finish you off.】

Melfirn’s body began to writhe and transformed into that of a knight.

A figure in ominous armor wielding a gigantic sword.

【Spatial domination, curse of sealing.】

And then, floating in midair, Izazel spread black magic to dominate the area.

As Ed guessed, they were starting to move seriously to seal him.

“Eve.”

[Yes. It’s begun. Everything is going according to simulation.]

And this flow was within Ed and Eve’s expected range.

From the start, Ed had anticipated that he would be sealed and had come to the battlefield for that reason.

“Things are going well. Everything is going according to plan.”

[……..]

Eve spoke less.

Though the ‘sealed world line’ they had planned was being realized, the probability of Ed’s survival in that world line was under 20%.

“Don’t worry. I will definitely return.”

However, there existed a realm that even highly intelligent AI could not calculate.

That realm was human insight.

After all these processes, Ed instinctively knew that he would ultimately see the vision he desired.

“Please handle things while I’m gone. After this fight, lead Sephilia and the world well.”

[……..Yes.]

Thus, Ed prepared for the final battle.

Soon, Izazel’s magic, having completely taken control of the space, isolated the inside from the outside.

The Lords of Hell began to charge at Ed all at once.

– Kiiiiiing!

The Doom Buster’s engine revved rapidly.

***

The world watched Ed’s struggle on the gigantic monitor.

Indeed, the battle between the Lords of Hell and Ed evoked awe enough to be called the war of the gods, but on the other hand, it also stirred feelings of heaviness in their hearts.

… What was the source of this inexplicable heaviness?

“……”

Eventually, the onlookers realized the origin of the intense emotion surging in their hearts.

At a glance, the magnificent and grand battle between Edgar Fix and the Lords of Hell seemed like a war of gods, completely detached from their lives.

Yet they knew Edgar Fix all too well.

To some, he was the little kid from ‘Fix’s Smithy,’ to others, he was an academy colleague, and to yet another, he was the lord who saved a territory and revived technology to rejuvenate the empire.

Moreover, he was the benefactor who restored the fallen honor of the dwarves, the hero who rescued the World Tree tainted by evil, and the savior who spread advanced technology to prepare for the demon invasion.

In this way, Edgar Fix had established various relationships as the village genius, the academy student, the lord of a small territory, the patriot of the empire, the friend of dwarves, the savior of elves, and as a pioneer of technology and civilization, uniting the world together.

He was indeed playing the role of a gigantic bridge connecting the world as one.

“Ah…”

Thus, the people of the world came to understand.

This was not a war of gods but the story of one man resisting a vast calamity.

Every single part of that colossal mecha was a crystallization of the blood and sweat that Edgar Fix had accumulated, a miracle born from pouring his entire life into it.

In other words, the towering colossus known as the ‘Doom Buster’ was not some divine being descended from the heavens, but rather ‘life itself,’ imbued with a human’s intense passion and effort.

“…”

Perhaps that’s why.

A few among the global audience bowed their heads.

They felt cowardly for leaving Edgar Fix to fight alone while they remained hidden here.

How lonely and isolated must he be, bearing the fate of the world on his shoulders while continuing to struggle on his own.

When he realized that he had no choice but to confront this calamity alone, how much had he sacrificed?

How much terrifying fear had he endured to arrive at such a decision?

“…”

The lovers of Ed, having entertained such thoughts, could not bear to look at him and lowered their heads.

And yet, they looked back at Ed battling with renewed hope that he might finally win and return.

Resentment for their own weakness in not being able to stand by him.

And the hope that he would come back after finishing everything.

Perhaps fear also lurked in them that he might not overcome this enormous calamity and might be defeated.

A tempest of emotions whirled within their hearts.

Meanwhile, Ed’s struggle was approaching its conclusion.

As the bodies of the Lords became battered, the moment of sealing was drawing near.

【Now… it is the end, Edgar Fix.】

– Gugugugugugugugung!

In an instant, magic burst forth across the entire space.

The flesh of the Lords scattered on the ground surged toward Ed, binding him.

A black slime completely engulfed the Doom Buster.

【Your annoying reincarnation… is now completely over… witness the end of the world trapped there…】

Melfirn declared his victory.

Although Ed had inflicted significant damage during his struggle against the Lords, resulting in a 30% loss of their power and physical form, the Doom Buster also suffered severe hits.

Now, the last hope, the Doom Buster, had reached the point where it could no longer operate, bound by the separated flesh of the lords.

What remained was only to begin sealing spells so he couldn’t reincarnate.

“No, it’s not me watching the end; it’s ‘us.’ Melfirn.”

But this was the moment Ed had been waiting for.

The Lords of Hell created an isolated space to seal him, exhausting a significant amount of their energy so they could not escape.

Therefore, even if he fired the ‘Mana Counterbomb’ embedded within the Doom Buster, it would be when they couldn’t evade.

That moment was the decisive blow Ed had aimed for.

Ed began to pour all his emotional energy into the ‘Mana Counterbomb.’

– Kiiiiiing─!

The flickering light in the long-dormant Doom Buster sparked back to life as a massive amount of stored emotional energy began to be drained.

As the P.A Field, maintained by emotional energy, deactivated, the Doom Buster started to burn in flames and crumple under the pressure of the surrounding magic.

Melfirn and the Lords of Hell deemed this a prelude to victory.

– Kwaaaang!

But in that instant of their complacency.

Hundreds of Mana Counterbombs were launched, bombarding the heavens and earth.

The magic that formed the bodies of the Lords quickly melted away, and their horrifying screams echoed.

【Kyaaaaaaaaak!!!!!! Edgar Fix!!】

Melfirn reached out with his melting hand.

The flesh that flowed from the Lords clung to the Doom Buster.

As the Doom Buster also melted and broke apart, it spewed thick smoke.

“Now, it’s really the end… Eve, execute.”

Ed, who had burned through hundreds of cycles for this moment.

As the melted flesh of the Lords enveloped the Doom Buster, making the sealing more robust, Eve nodded.

And she transmitted the pre-prepared video to the gigantic screen that the global audience could see.

The video contained Edgar’s last message to the people of the world.