Jin D began his explanation in a calm, steady voice.
"I believe you are already aware that magic patterns vary from person to person."
"Well, yes, of course."
"In advanced-level Magic Theory, when analyzing these magic patterns, the distribution of their frequencies is referred to as the 'mana spectrum.'"
"Indeed, so it is."
Up to this point, it was the exact curriculum taught in the lectures at Avalon.
From there, the baton of explanation passed to Elsa D.
"It is said that for casting offensive spells, a peaky spectrum is far more suitable."
Spectra corresponded to the elements, ordered from lowest magical frequency to highest: earth, water, wind, fire, light, and darkness.
Furthermore, they could be broken down into even finer detail. Within the water-attribute, ordering from lower to higher frequencies yielded ice-attribute, water-attribute, and steam. Light-attribute was similarly categorized into infrared, visible light, ultraviolet, electromagnetic waves, and so forth.
In other words, having a sharp peak in the spectrum corresponding to a specific attribute meant having a natural aptitude for that element's magic.
Incidentally, magi-craft required a high overall baseline across the entire spectrum, whereas healing magic did not necessarily demand high output, but rather a flat, uniform profile.
Of course, such research was still in its infancy; depending on future discoveries, prevailing theories could very well be overturned.
"And so..."
The explanation returned once more to Jin D.
"It appears that Miss Najas's magic pattern—her spectrum—is exceptionally well suited for Healing."
"H-How can you possibly know that?!"
"M-My aptitude is for healing magic?!"
Jonas Tigrina and Najas Kahn gasped in unison.
"Even if you ask me how... Ah, well, Reiko here is capable of that kind of detection."
Jin quickly offered the excuse, figuring it would sound far more plausible if attributed to the automata Reiko rather than himself.
Claiming Reiko could do it was not a lie. It was just that both Jin and Elsa were capable of detecting it as well.
"I-I see... Lady Reiko can do that..."
"Therefore, if possible, I believe it would be wise for her to study healing magic under a proper master."
"At a place like Avalon, for instance," Jin added.
"I shall give it serious consideration."
Since now was not the time to pursue the matter, Jonas moved on.
"Allow me to welcome you once more. It is truly an honor to receive a visit from the esteemed Third Generation Magi Craft Meister."
"No, I still fall short of my predecessor."
"Oh, nonsense, you are far too modest. Word of your travels in neighboring lands has reached our ears."
Jonas mentioned having heard reports of how tremendously successful the air race held in the Klein Kingdom had been.
"I should very much like to hold such an event in our own nation one day."
"Competitions foster technological advancement while providing great entertainment, after all."
Jin D suggested that establishing public gambling for such occasions might even help eradicate underground gambling.
"Oh, I see!"
By its very nature, underground gambling yielded immense profit margins for the organizers. Put another way, the return to participants was meager.
In contrast, introducing public gambling with fair dividend payouts could potentially drive illegal operations out of business.
Granted, precautions would be necessary to prevent gambling addiction.
Simply imposing an outright ban would only drive the practice further underground.
As Jin laid out his reasoning, both Jonas Tigrina and Najas Kahn listened in deep admiration.
"Indeed, you possess profound wisdom, Jin-dono."
"Not at all, I'm merely relaying what I've learned from others."
As they spoke, a crisp, distinct knock sounded at the door.
"Ah, it appears it is time."
When Najas opened the door, one of the monarch's secretaries was standing outside.
Five minutes later, Jin D, Elsa D, Reiko, and Hope were ushered into the monarch's office.
"Welcome, Third Generation Magi Craft Meister, Lord Jin Nidou. I am the King of the Franz Kingdom, Caroline de Lafayette."
The King of the Franz Kingdom was, in fact, a queen.
She appeared youthful, only slightly past the age of thirty.
And above all, her features bore a subtle resemblance to Catherine, whom Jin and the others had met in the past. It was likely due to their shared bloodline in the House of Lafayette.
Observing through Jin D's vision, such thoughts crossed Jin's mind.
"...Our nation was largely untouched by the influence of the Magic Federation. That, however, owes to the rather shameful reason that we are fundamentally an agricultural country whose technology has lagged behind."
The Queen began to speak.
"Though it was purely by chance, I heard that you played a pivotal role in resolving the underground gambling incident in Loloon Town. I wished not only to express my gratitude, but also to ask if you might offer us some insights for the development of our realm."
Next, the middle-aged man standing beside her spoke up.
"I am Chancellor Joachims de Drow. First, allow me to express my deepest thanks for your assistance the other day. Furthermore, our kingdom grants you the status of an honorary citizen, along with the right of unrestricted access to the Royal Palace."
Having received similar privileges from other nations, Jin was now granted the freedom to move about just as comfortably within the Kingdom of Franz.
"I gratefully accept."
"Very good. Splendid."
The Queen spoke once more.
"Now then, Jin-dono, what are your thoughts?"
"Your Majesty, you are being far too hasty."
"Y-Yes, quite right."
Eager to receive whatever advice she could from Jin, the Queen was gently reined in by her chancellor for her impatience.
"Well, to begin with, perhaps you might see to the maintenance of your mana stands and encourage the widespread use of magi-devices?"
On his way here, Jin had noticed mana stands scattered across various regions, but aside from those seemingly crafted by him, the vast majority were out of order.
Jin voiced the first practical observation that came to mind.
"I see. If the use of magi-devices increases, demand will rise, thereby revitalizing the economy."
The Chancellor jotted down notes with evident delight.
"Furthermore... well, I noticed a surprising number of Golem automobiles around, so hosting an automobile race might also be a good idea."
"A race, you say...?"
The Chancellor seemed rather unenthusiastic about the suggestion.
"Is there a problem?"
"Well, in truth, about fifteen years ago, we did hold an automobile race using the drill grounds, but it failed to generate any excitement whatsoever."
"Hmm... out of curiosity, how was it run?"
"Well, you see..."
The Chancellor began to explain.
"We constructed an oval course on the drill grounds and had the vehicles run laps around it. Three vehicles ran at a time, and we repeated that five times."
"..."
"As for spectators, we set up a dedicated viewing area outside the drill grounds where they watched from."
In short, it was practically a textbook example of how not to run an event.
"I suspect the execution itself was flawed. With an arrangement like that, it's no wonder the spectators found it dull..."
Jin D began pointing out areas for improvement.
"First, for the race, you should increase the number of entries competing at once. Perhaps around eight to ten vehicles."
He explained that doing so would make it harder to predict the victor, drawing the audience into the spectacle while instilling a fierce sense of competition among the racers.
"I see. That makes sense."
"Next, build dedicated grandstands for the spectators... raised slightly higher so they can overlook the entire course. Then, charge an admission fee, even a modest one."
Jin went on to explain the concept of capital investment.
"On top of that, you should set up magi-screens so that even those seated far away can enjoy the race up close."
While it would require an initial investment, Jin D concluded that the costs could easily be recouped through admission fees and the house take from betting.