Published at 3rd of April 2026 8:22 am

Chapter 990

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I worried for nothing.

Giselle thought she should ignore it from now on even if Wardanaz said things like Im tired of being involved with crazy spirits, Im troubled by being involved with crazy demons, or Im annoyed by being involved with crazy giants.

Everyone sometimes says things different from their true feelings.

Dont White Tiger Tower students also get up saying things like I really dont want to do this but I have no choice, just this once when they receive ball game proposals before exams?

Wardanaz was probably a similar case.

I see this lecture deals with the scholarship of learning.

?

Lee Han, sitting in front of the Insane Doppelganger, tilted his head.

What the Insane Doppelganger was currently reading were books related to Magical Algebra and Arcane Geometry.

Magical algebra and arcane geometry

They werent called that in the age of royalty. There has been quite significant progress in the content they cover as well.

!

Lee Han brightened up.

If what the Insane Doppelganger said was true, then for this lecture at least, the Insane Doppelganger might be a bit lenient.

In the old days, the names were different, there was no subdivision, and there wouldnt have been various convenient formulas discovered later.

Then the current Einroguard students would be much further ahead in progress than expected.

Indeed. Then shall we just skip this lecture?

However, I see overly complacent aspects. A learner should be able to prove and understand the formulas they handle rather than blindly memorizing them.

Oh no.

Lee Han suddenly felt an ominous feeling.

It was like an instinct honed as an experienced student.

Could it be?

Gather the other mages. I shall begin the royal discourse.

Yes

While going to call his friends, Lee Han thought to himself.

Its fortunate that the Magical Algebra and Arcane Geometry lecture is a second-year course.

Even the same suffering would be much more bearable if shared with friends.

Of course, he couldnt know if his friends would think the same way

***

Mage. Using only a rod and compass, construct a cubic sanctuary twice the size of this cubic sanctuary.

What?

Gainando, who had dragged a chair with other friends to sit in front of the Principal, no, the Insane Doppelganger, was flustered by the sudden command.

I I cant do it!

That would be so.

The Insane Doppelganger nodded.

Though there were many shortcomings, befitting his disciples comrades, the fundamental parts were quite solid.

What the Insane Doppelganger had just asked was a problem that couldnt be answered in the first place.

This is a problem that cannot be constructed without borrowing the power of arcane arts or magic. It was also a famous problem since ancient times. Twenty-three mages died trying to solve this problem

Wow. How did you answer right away?

The Blue Dragon Tower friends were slightly impressed.

Of course, thinking about it carefully, since it was a problem they had learned before, they could have recalled it sufficiently, but Gainando answered immediately without any hesitation.

Could it be that Wardanazs education was finally showing its brilliance?

I just answered that I couldnt do it because I didnt know.

His friends cast contemptuous looks and turned their heads away. Gainando felt somehow wronged.

He had just answered that he didnt know what he didnt know

However, simply memorizing that its impossible and completely understanding the reason are different things. A mage should naturally be the latter. You mages should rightfully be able to explain it.

The students who were listening attentively to the Insane Doppelgangers explanation suddenly had a question and asked Lee Han.

Wardanaz. Wardanaz.

Why are you calling me?

Is this the final exam topic?

This semesters Magical Algebra and Arcane Geometry was being conducted in a quite unusual format.

Due to the professors absence, Senior Yukveltire was conducting the lectures instead.

Fortunately, Senior Yukveltires lectures were much more normal than expected (more precisely, than Professor Vers lectures). The students who had been flustered by the professors disappearance had all adapted by now.

But the content the Insane Doppelganger was currently teaching was different from what Senior Yukveltire had been covering recently.

What was this?

Uh. I dont think so. Master wouldnt know the final exam topic in the first place.

Then why is he teaching this?

Hmm. Thats a reasonable question.

Lee Han, who nodded at his friends words, raised his hand and asked.

Master.

What is it.

Isnt our final exam on spirit polynomials? If the progress is correct

Thats not important.

?

The students gathered there murmured.

That wasnt important?

What does he mean its not important?

Maybe hes canceling the exam?

Is that possible?

Well, since hes the Principals doppelganger, he might have the authority

Despite the students murmuring, the Insane Doppelganger opened his mouth without changing his expression.

Whats important is for you mages to seek and reflect upon the origins of the scholarship you learn.

I shall begin again. The purest and most artistic elements of arcane geometry are straight lines and circles. Excellent mages could draw countless transformations with just these two things. Even after many tools, magic, and laws were discovered later, the wisdom contained within has not disappeared

Wardanaz. What do we do?

Isnt this a big problem?

Noisy. Stand up.

!

Several students who had been murmuring were pointed out by the Insane Doppelganger and forced to stand. Gainando was included among them.

Explain the impossibility of the construction problem I just mentioned.

Oh. Thats

Wi, without the help of magic or spirits thats difficult why its difficult is because

To accomplish what you just mentioned, one would need to be able to construct irrational numbers using only straight lines and circles, but thats not possible. The numbers that can be constructed are

!!!!

Not only the friends who stood up with Gainando but also other students were shocked by Gainandos fluent recitation.

Did Wardanaz teach him that?

No, no way. At that level, he could teach songs to rocks.

When Gainandos explanation ended, the Insane Doppelganger waved his hand. The students who had stood up sat back down.

Not perfect, but you understand the essence. Ill forgive you this time. If you interfere with the royal teachings in the future, there will be appropriate punishment. Mages should be vigilant.

The friends who sat down sent grateful regards while asking with hand signals.

-How did ou answer that?

Gainando also answered with hand signals.

-Lee Han told me.

-What? How? There was no opportunity for that?

-When waking up, he used telekinesis to stick a paper note to his hand.

The students were amazed.

What had been improving wasnt the Princes magical skills, but Wardanazs magical skills.

That monster-like guy. How did he manage to do that in such a short time

Is it possible to handle telekinesis magic so delicately?

More surprising than that is how he controlled it without getting caught while talking.

While his friends were admiring and the Insane Doppelganger was lecturing, Lee Han was thinking about something else.

Will I be taking a different exam again this time?

Surprisingly, Professor Knighton, who taught Magical Algebra and Arcane Geometry, was a mage with the ingenious educational philosophy of giving separate exams suited to students levels (more precisely, just one student).

Thanks to this, Lee Han had been solving more difficult problems alone since last year. Even thinking about it again, it was truly unreasonable nonsense.

Still, this time the professor wasnt at school and the Insane Doppelganger said he would help, so he thought it might be a bit better

Hmm. It seems like its gotten worse instead.

Instead of studying for the exam during the time he originally would have, he was listening to the Insane Doppelgangers lectures on ancient history and the fundamentals of arcane geometry, making him wonder if this was right.

While thinking this, the Insane Doppelganger called Lee Han.

Disciple, you must teach the other mages.

Pardon?

They dont understand, do they? Someone is needed to explain the royal teachings at their level.

When he looked up, the other friends were staring at Lee Han with haggard and forlorn faces.

It seemed the Insane Doppelgangers questions had continuously knocked down his friends.

Ah. That would be me.

At his disciples answer, the Insane Doppelganger nodded as if asking what took him so long to realize.

Lee Han grumbled inwardly as he stood up from his seat.

It really has gotten worse.

***

Intarendals, the chamberlain serving the Insane Doppelganger, received his masters orders and moved from the mountain range workshop to Einroguard.

Fortunately, with the Skeleton Principal absent, he could worry less about the Death Knights attention.

If the Skeleton Principal had been present, something like wandering around the main building area in broad daylight would have been completely unthinkable.

More than that isnt Master acting a bit strange?

Lately, Intarendals had been feeling a sense of unease.

It was an unease that only a chamberlain who had served his master with loyalty for a long time could feel.

Who was his master?

Wasnt he a seeker who tried to solve this worlds deficiencies with magic?

Of course, due to an unfortunate accident, he had lost his physical body and become a thought entity banished from the world, but for a great archmage, that was merely a trial.

Indeed, just looking at the current situation revealed his masters extraordinariness.

How long had it been since his descent, and he had already found a disciple to inherit his robes and was passing on his teachings. This was something that went beyond mere extraordinariness only one blessed by heaven could accomplish such a thing.

But

Then shouldnt he be more boldly passing on his magic?

The reason his master sought a disciple was ultimately to pass on and complete the cherished wish that had become difficult for him to achieve after being banished from the world.

It might be understandable when the evil remnant Skeleton Principal who interfered with his master was around, but now he was nowhere to be seen and things were quiet, yet he couldnt understand why his master was hesitating.

-Master. The situation seems to have settled somewhat, so I shall prepare to pass on high-level magic.

-No need. Wait.

-Then the small world?

-No. Theres no need for that.

-???!

-Wait. The royal has something in mind.

Intarendals wondered if it was because of what happened before, when the evil aspect within had awakened.

It was certainly surprising, but conversely speaking, that was all there was to it.

The timing and degree were unexpected, but both the Insane Doppelganger himself and Intarendals knew such a thing could happen.

Becoming a thought entity that had lost its physical body and been banished from the world meant exactly that.

A life of continuous rejection from the world, never knowing when calamity might strike.

Then wouldnt it be even more right to whip the disciple into shape?

If his master was considering the possibility of being reverse-summoned, then this current lax teaching was even more incomprehensible.

Shouldnt he teach more intensively so that when his master descended again in the future, the successor to those teachings would remain?

Yet this leisurely attitude. It was even more incomprehensible.

Intarendals wondered if he should give presumptuous advice that went beyond his duties as chamberlain.

These items also dont seem like theres any reason to pass them on to Lord Lee Han of Wardanaz Family right now

What Intarendals was currently carrying from the workshop were items the Insane Doppelganger had instructed him to bring.

Reagents and materials that had been gathered to create the workshop and install surrounding magic after the descent.

And several books the Insane Doppelganger had written.

They were certainly valuable items, but giving them to a disciple who had become lax would only make him more complacent.

Strange Even though the royal taught directly, the remaining amount has increased?

Isnt it because Master keeps adding content that wont be on the exam!

!?

Witnessing the scene before his eyes, Intarendals nearly fainted.

What in the world was happening right now?

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