The Reincarnate Became a Professor at the Academy

Eternal Sun.

I completed it.

To be precise, it's more accurate to say that I completed its framework.

'If I keep developing this.'

The artificial sun that was created before.

I could make something much better than that.

Even now, it's only slightly inferior to the artificial sun.

'It's absurd that there's not much difference between the artificial sun created by the previous Tower Masters and the Eternal Sun I made now.'

Anyway, it seemed I got my money's worth by consuming the artificial sun.

To put it simply, the overall output had decreased, but I changed the fundamentals, giving it room to grow.

If I roughly calculated that output…

'About 15 times, I guess.'

It wasn't something I needed to work this hard on, but I felt quite sorry.

'It's also commendable.'

Even though I died, it still managed to preserve my legacy to some extent.

And I liked that he still treated me with respect.

"This is…"

The Red Tower Master spoke in a trembling voice.

Perhaps because he had been acting as the Tower Master in his own way.

He seemed to understand how remarkable this was.

'Well, judging by his appearance, it seems he had a tough time.'

The Empire's artificial sun.

It was the long-cherished wish of all the Red Tower Masters.

He was no different.

While other Red Tower Masters tried to create it by any means, he made an effort to complete it without crossing the line.

Maybe that's why.

I ended up putting in some effort myself.

'I spent an entire day.'

I wasted time on an unexpected incident.

But it wasn't in vain.

Maybe it's because I saw a familiar face after a long time.

'Was I always this sentimental?'

I was surprised at myself.

"Thank you."

"Don't mention it, it's nothing."

In fact, it was no big deal.

I just created the structure and used the resources here to make it.

'But, I'm the only one who can do it to this extent.'

No one else can.

Except maybe the transcendents at the boundary.

Other than them, it's safe to say there's no one else.

Even they, however, were tied to the boundary right now.

Even the Heavenly Demon and the Duke of Extermination were bound there, unable to do anything.

'It's really absurd.'

I knew well how strong those two were.

And then decades, or even over a hundred years, passed.

'Yet there's a place that can trap them.'

My interest was naturally piqued.

What kind of place was it?

'Those gods.'

And the transcendents.

They would be there.

And the demon king who faced them.

They would be there too.

'…I'm getting eager to go there soon.'

I was curious what kind of tricks they would pull, how strong they would be.

Well, there was something I needed to do first.

'The roots of evil present here.'

I would obliterate them all.

And then I'd deal with them at the Boundary.

In my determination to become a transcendental being as soon as possible.

A strange presence was felt.

'Someone.'

Was coming.

And very quickly at that.

Indeed, at an incredible speed.

A speed comparable to my Wind God Steps. But only in terms of speed.

The efficiency of power was practically thrown away, emitting tremendous waves.

A smile crept up the corners of my mouth.

More than 100 years had passed.

And the bastard's age was over 120.

'I thought he'd be holed up somewhere, wasting away.'

Was he still my friend in some way?

He was spry.

No, maybe he's been consuming a lot of elixirs here.

He was in a position to do so.

That bastard.

Supreme Realm.

Even within that realm, there's considerable distinction.

Some could kill the most distinct transcendents.

Others could live for thousands of years, and some possessed more than fifty lives.

In that sense…

The head of the Iron-Blood Sword Clan was neither ordinary…

Just a weak Supreme Realm.

One who barely raised his realm through brute force. He neglected his training and merely forced his body to grow.

Such a person.

Rumble!!

The sound of lightning.

Black lightning crackled and sparked.

'Ho-oh.'

I was somewhat impressed.

He had become far more skilled than when I had last seen him.

No, perhaps he hadn't developed as much as I thought.

'It's been 100 years.'

In other words, that was all he has achieved.

Supreme Realm.

Even after 100 years, still in the Supreme Realm.

In terms of achievement and realm, he was close to the head of the Iron-Blood Sword Clan.

However, there was a difference.

'Such overwhelming mana.'

He possessed an enormous amount of mana, which I would need to gather steadily for another year.

Flare.

Ashen flames flickered in my grasp.

Gray flames.

The Heaven-Surrendering Godly Technique, which sought to destroy everything.

It made its appearance.

Originally, its motif was Divine Thunderbolt.

Black Thunder.

What was obtained from it.

So, it could be known.

The man was approaching me at a tremendous speed right now.

'Who I am.'

Rumble!!

Black lightning, Divine Thunderbolt roared.

It was a footwork technique that utilized Divine Thunderbolt.

A footwork technique created in pursuit of extreme speed.

However, it was tyrannical.

Since it had the ability to destroy every space it moves through, it was also classified as an attack technique.

And it's noisy.

'The mana consumption is also too severe.'

So.

The one coming here now was just one.

'There's no way he would have taught it to another guy.'

Divine Thunderbolt is a magic permitted to only two people in the Empire.

One is the Purple Tower Master.

And the other one was.

The Emperor of the Empire.

"Hahaha!"

The man laughed.

A handsome face.

Golden hair and blue eyes.

The man clenched his fist.

Boom!

Divine Thunderbolt.

Lightning that splits stars was contained within.

But he held it in his fist.

Because he was both a mage and a knight with chivalry.

Chivalry.

It was a restriction created by the knights of the Empire, staking their honor.

And the more that restriction and honor grew, the stronger the power became.

Therefore.

'The knight's power he possesses.'

It grew stronger.

He raised both of them to the point where he was comparable to the head of the Iron-Blood Sword Clan.

If only considering the realm.

But the power contained within is different.

He steadily built up the tower, embodying all the powers he was taught.

Even with the presence of the three heads of the Iron-Blood Sword Clan, the man before me cannot be stopped.

"Is it truly you?"

"It's been a while."

But the same went for me.

As his master, I had an obligation to see how much he has grown.

Heaven-Surrendering Godly Technique.

Soul-Severing Strike.

I thrusted my fist forward.

He did the same.

His fist, wrapped in black lightning, swung at me.

───────────!!!!!

A soundless wave spread in all directions.

The sound of space tearing echoed everywhere.

His strength increased.

Agility had increased.

Mana? Comparing it was meaningless.

The mastery of magic improved, and his knightly resolve became firmer.

'That's all?'

Despite that, I was somewhat disappointed.

"A bit disappointing."

"I can't help it! Because of someone, the entire empire's resources were wiped out!"

"For that, you've been taking plenty of elixirs."

"The Emperor of the Empire must be steadfast for the country to run smoothly. Cultivate oneself, manage the household, govern the country, and bring peace to the world. To make the Empire strong, one must train the body first."

"You still have the habit of using everything you're taught."

"Well, that's because it's you."

The Emperor smiled slyly as he spoke.

"More than that, you've grown weaker. Your face has become even more annoyingly pretty like a gigolo."

"…Isn't that a compliment?"

"Not in your case. Don't troublesome things flock to you? You, who always complained about having no time for research."

"What are you talking about? You're the one who married the Empire and didn't take a single concubine."

"I have many concubines and wives. Altogether, there are about eight."

"What?"

"My sons have grown up too. You were a big help. Even the seemingly invincible Purple Tower Master died, so it's not like I'm immortal either, right?"

That was true.

Since I died, he must have had quite a hard time too.

"So I had children."

"But isn't it too much to have so many wives?"

"…Even this is few, considering my position."

Saying that, he stepped back forcefully.

The Emperor looked at me with eyes full of competitive spirit.

"Do you know? With my current power, I am about mid-level in the Supreme Realm."

"…What?"

"This world is really fun. And there are strange guys from other worlds too."

"Yeah. For example, the elves who have devolved the scientific civilization of the neighboring country…"

Swish.

I turned my head to one side.

Then the Emperor turned his head with me.

At the same time.

Boom!!

A tremendous explosion erupted.

It happened near the front gate.

At the same time, an enormous amount of magical power expanded explosively.

At the same time, a massive surge of mana expanded explosively.

A deep green mana. As soon as it was unleashed, the emperor's face hardened.

"That damn bastard."

"Who is it?"

"One of those weird guys I mentioned earlier. An elder of the Elf race."

"Those elf bastards."

I felt a slight pang of guilt.

Because I had wronged them somewhat.

"We'll have to save the reunion for later."

"Well, I guess we must."

For now, stopping that guy was urgent.

Because the magic power emanating from here was immense.

It's at least as strong as five heads of the Iron-Blood Sword Clan.

The emperor and I ran swiftly.

I used the Wind God's Steps.

The emperor used the Divine Thunderbolt technique.

And what we saw upon arrival was.

'Elves.'

Long ears.

And dazzling golden hair and blue eyes.

"Oh? I didn't expect the emperor of the empire to personally come out to greet me."

"You wench…"

"And there's one more face I haven't seen? Hm… even with my discerning eye, it's quite a good face."

"Well, it's true that I'm handsome."

Even if said as if it's obvious, it didn't really stir any emotions.

I swept my hair back and looked at the elf in front of me.

"So, what? Are you here to cause trouble?"

"A hostile gaze. Were you part of the empire? There's no way I wouldn't know someone as unique as you."

Anyway.

The elf finished speaking.

"I'm here to avenge."

"Avenge? What kind of grudge do you have with us to say such a thing?"

"A grudge. A thousand years ago, when I was still a fledgling, a man named Genghis Khan invaded our China, didn't he?"

"…"

The emperor looked at the elf with a dumbfounded expression.

Meanwhile, I had a look of admiration.

Ho-oh.

Elves could make threats like that.

'This is quite…'

It might be a useful threat.

The leverage in negotiations started by catching the other party off guard.

That's why the Emperor was at a loss for words and couldn't do anything.

'And then a reasonable negotiation proposal…'

"So, the Empire shall submit to our Green Forest, one with China."

I thought.

She was truly insane.