"Dr. Redo, why can't you change the lecture!

Waiting for Redo, who arrived in the lecture room, was Isabelle, who was jealous and fluffy at the entrance.

"Oh my God, all of a sudden"

"You and your friends want to take Adventureology. You and I are going to the faculty room for a direct lecture on changing lectures! Then I will! I won't be accepting lecture changes for a while because of all the circumstances!

"Uh. Speaking of which, you were talking like that at the staff meeting this morning."

Redo recalled that he had a story this morning about a lecture on selection at a staff meeting that Yeli had asked him to attend.

According to Yeli's story, there has been a protest from several students that the lecture on choice is not in keeping with their hopes, and several more wish to change the lecture further.

Some teachers also raised the suspicion that there might have been intentional manipulation and that lecture changes should be made, but the opinion was blocked by Gotland and his hipster wipes. Gotland, who had already built a faction on the second day of his assignment, was a boulder or something... and Redo could only see it with a dazed gaze.

Redo watched it in silence, but it was surprising that Yeli did the same to silence it. In the end, the meeting ended with the conclusion that students would not be accepted to change lectures on individual and corresponding items.

Isabelle caught an eyebrow and raised her voice.

"It's crazy! I can't believe it's a choice (...) choice (...) lecture but I don't even have a choice!

"... anyway. The friend? would love to take my lecture, and if I could, I'd let him change it... whatever. I'm a freshly arrived dispatched instructor. Unfortunately, I don't have enough power to overturn my decision."

"S-rank but no"

"Just because you're S-ranked doesn't mean you can do anything. Come on, sit down. We'll see about that later."

Isabelle stays fluffy, hitting it off yesterday and returning to the tidy lecture room. The lecture room had changed more like an office than a classroom, as Ledo instructed, and a single piece of office supplies that Ledo had arranged for the clerk had arrived yesterday.

But more than that, they took Ledo's eyes out the window.

"... who's the asshole who brought this in"

A bunch of weapons arranged as if they were a first-rate weapons store show window at the window of the lecture room. It has not only swords like Longswords, Shortswords and Daggers, but also long-handed weapons like Spears and Halvards to ranged weapons like Bowguns and Bows.

Above all, Redo noticed that all of them had a thin, pale light and that all of them contained misrills.

Mithril has good magic conductivity and is the best material to make a weapon for those who use magic. Redo's two-wielded sword also contains a misrill in his body.

Mithrills with higher demand year after year, but its raw stones are produced only in a limited number of places. It cannot be used as raw stone, and processing using special techniques is necessary to use it as a material, but the technology was also monopolized by a certain country, which has the world's largest mythrill mine.

The country's name was Riote, and its territory was in the mountains closed to snow and ice all year round in the western part of the Euro continent.

Mithrill exports and the special technology and industrial power that deals with them make it a small but quite remarkable country.

Ledas and the others silently focused their gaze on Isabel, who missed his gaze at the speed of light.

"... I gave you permission to carry the weapon, and I said yesterday that I would prepare the weapon on my own, and for those who don't have it... I didn't say a word about bringing enough to open the weapons store - Isabelle Sasulica Li (...) O (...) - (...) T (...)!"

"No, look, because... I was wondering if a good weapon would be better... hehe"

Isabelle winks and tongues out small. It didn't look like Redo as he was reflecting.

"How did you prepare it... this amount..."

Ledas shrugged so in a tone of shuddering.

"... perhaps if you sell all the weapons here, you won't have trouble eating them for the time being"

Nilun looks at the weapon with interest. Apparently Nilun understood the value of Mithril.

"It's okay... [Nine Songs (Kuka)] is more awesome... hehe"

Hina said so to the sword she was holding with a smile. Though in a simple sheath, Redo knew at first glance that its thin and long shape was a knife, the unique song sword of Storm Cherry Blossom Country.

"Isabelle, did any of you get this?

"Heh? I (...) people (...) of (...) things (...) both of them and nothing? Oh, I made that long sword or something! Pretty awesome, huh?

Isabelle said so and happily took the long sword and showed it to Ledo.

Ledo looked at the long sword and found out that it was not a regular long sword but a Riot product. Either way, the brightness of the pale light emitted by Mithril is different. Furthermore, this amount of light gives a general indication of the content of the misrills… If the content of the misrills weapons on the market is approximately 10-20%, this longsword would be nearly 60% misrilled.

That's so extravagant that even royalty can't own it.

Furthermore, Redo turned his attention to the armor that Isabel always wore.

"That armor... no way [Arm of the Miners (Aurez Hand)]...?

"Oh! Dr. Boulder Redo!! You know me well!

I didn't think so... but Redo's suspicions turned to certainty.

Isabelle Sasulica Rioto. From that name I assumed that Ledo was a royalty of Riotto at a time when he was royal or noble and had a country name with Riotto. But when he found out Isabelle's armor was [Ores Hand], he was sure that Isabelle was the daughter of the Royal Riot.

"Stupid bastard... that would be the treasure of the Riot royal treasure... you can't put it on with an accessory feel..."

"Doctor... [Arm of the Miners (Aurez Hand)] What...?

Hina raised her hand and asked that question.

"You've heard of it... you think it's the magic trick that's behind today's mythrilling technology?"

And Nirn answers. Redo opened his mouth, impressed by Nilun's amount of knowledge.

"Exactly, Nirn. You knew me well. Mithril is an important material for adventurers. Because of this, shall we give a little lecture on Mithril? I'm gonna need Isabelle to help me, too."

"Absolutely!

When Isabelle stood up happy to say so, she stood beside Ledo on the stage.

"Well, first of all, about Mithril, but, Ledas, do you know what that feature is?

"Am I? I don't know. It's expensive material with money and stuff, right?

Ledas answered with a glance on his face. Redo nods at it.

"You're right, Ledas. Price matters, so what you know matters. Ledas is right, Mithrill is expensive. It's expensive enough to stand alongside Adamantite and Orihalcon. Shall we take another step? Then why is it expensive? Hina, do you understand?

"Precious...... so? I've never heard of it in Storm Sakura Country..."

"Correct, Hina. Mithrills are precious. Precious, but in great demand. So the price gets really high."

"Why is there so much demand...?

Isabel answered Hina's question.

"That's right! Mithril is the ore with the highest magic conductivity, because through magic it has the power to amplify it! To be precise, does it feel like making the magic passed through more pure magic? In fact, the magic emitted by people is a mixture of various impurities, and even if the magic itself can be exercised, the accuracy and sophistication will fall. But if you pass the misrill, its impurities will be filtered and closer to purer magic, so you can exercise precise and elaborate sorcery. By the way, this pale light is called [filtered light], and it reacts to the magic contained in the air and causes it to filter."

"The boulder is the (...) princess (...) of li (...) o (...) t (...) country (...). You know more about Mithril than I do."

"Hehe... he finds out!?

Round your eyes, Isabelle staring at Redo.

"Were you going to hide it?

"Once...?

"Ha...... Well, anyway, Mithril is an essential ingredient for those who use magic. More recently, Mithril is often used in reproducing relics, and you guys just don't know it. In fact, Mithril is used in various parts of this king's capital. For that reason, I think I understood the usefulness of Mithril. But Mithril has its faults."

"Cons? As far as I can tell, it just sounds kind of awesome."

I nodded loudly at Ledas' words just like Isabel said.

"There's nothing wrong with Mithril!!

"... I wonder if you would say... Look, Mithril is in high demand. But for that height, production is pretty low. In other words, demand and supply are not commensurate. The higher the demand, the higher the price."

"The biggest producer of Mithril is… Riot, right?"

"Right, Nirn. In the first place, the output of Mithril Ore itself is limited. But that's not the only problem. Mithril is useless if he stays a stone."

"To use... not to be...?

Hina tilted her neck slowly. And Redo answers.

"Yes. Mithril's primary stones contain a lot of impurities, plus they're materially quite unstable. Dealing poorly with raw stones... causes a magic explosion"

"Magic explosion... what the hell"

"You just talked about Mithrill amplifying magic, didn't you? That is something that can be done because it stabilizes the misthrill by some special machining technique. If you let the original stone touch the magic... it will overamplify the magic and explode"

"Oh my..."

Redas moved just a little from the window to the hallway side.

"I'm scared. Anyway, I still have a record of blowing up one mine. It just blew up cheaply with magic in one primary stone, chaining it into a mythrill mine. So digging out a misrill requires a very delicate process, and we need more machining technology to stabilize the misrill stones that we've dug out."

"The monopoly on that technology is... REAUTO, right"

Isabelle fumbled over Nilun's words again.

"It's not exclusive! It's protection!

"Back in time, Isabelle is wearing the Arm of the Miners (Aurez Hand), built in ancient times to stabilize and process Mithril. Based on this, Mithril's stabilization and processing technology has been developed, making it a major industry."

"I see... I mean, the main house..."

I just nodded that Hina was convinced.

"[Arm of the Miners (Aurez Hand)] has been handed down to the Rio Royal Family for generations. Having it..."

"I see. I'm convinced. So neither teacher is going to get a head start on Isabelle."

Nirn and Hina nodded at Ledas' words.

"In the unlikely event of a Princess of the Royal Riot, it will definitely be an international issue."

"... I don't really like being told that about the house"

Isabelle told Ledo so in a stubborn voice.

"I know. At least I know you're the princess of Rio, but I'm not going to treat you special."

"Dr. Boulder Redo!

"Well, so I explained Mithril all the time... Hmm, you haven't brought any weapons except Hina"

Redo confirmed that neither Ledas nor Nilun were armed.

"I don't have it. I don't want to be an adventurer or a fucking knight."

"You don't really like violence. Well, I'm a little bit fond of magic."

Hearing the two words, Redo puts his hands on his chin and thinks.

The lecture also intended to teach him how to handle weapons. If they had a hand, I would have taught them that, but if I didn't, I'd have to start with weapons selection. The weapon itself was going to be properly prepared at the weapons store... but Redo began to wonder if it would be a bad idea to have a weapon made of Mithril because he had lectured on Mithril.

"Isabelle, may I choose between these two men and your weapon from what I have brought you?

"Of course you are! I'll give everything to Dr. Ledo."

"No, I don't need this amount of boulder... But it turned out to be helpful, Isabel. Thanks."

That's what Redo said. He smiled at Isabelle.

"No - hehe... it's a weapon in my country, so quality is a first-class product!

"Oh, can I choose? Seriously?"

"Ultimately it's my preference... but for once I'm going to lecture on the characteristics of each weapon. You should listen to that and choose your own. Hina's going to use a knife, and I don't mind that, but it's not a bad thing to have knowledge of other weapons, so listen carefully."

"Yes......!

That's how Redo took every weapon in his hand and started explaining it.

Ultimately, all weapons were decided, and the next day, the training in action before the call for requests began.