Chapter 27
Judging by Karin’s reaction, Isabel had a feeling that she was wrong.
‘If I’m wrong anyway, it’s better to be completely wrong.’
Since things had come to this, she decided to speak definitively until the very end.
She thought that if she was completely wrong, she wouldn’t be vulnerable.
So, she decided to be wrong in a way that wouldn’t make Karin so dumbfounded that she wouldn’t get angry.
Once she thought that way, her mind became much more at ease, and the words flowed out smoothly.
“I tried creating three mana streams with the same frequency but different phases. I applied sinusoidal alternating current, with each phase differing by 120 degrees and the same amplitude. If you do this……”
“Wait a moment.”
“……Yes?”
Karin took out a notepad.
Isabel’s words were unusual.
It was content that didn’t exist in current theories.
“Please explain exactly what sinusoidal alternating current is.”
“Ah…… Yes.”
“Could you show me by writing it as a formula?”
Karin calmed her surprised heart and handed over the notepad and pen.
Seeing the paper and pen, Isabel felt at ease.
She was very familiar with exams, and among them, she preferred exams that were solved on paper like this.
Because she was a student preparing for the college entrance exam in Korea.
“You should also add an explanation. In magic theory, it’s always important to speak it out loud. Do you know why?”
“Because that’s the basis of chanting!”
Isabel, who had gained confidence, answered vigorously.
Karin almost smiled unconsciously, but she quickly controlled her expression.
“That’s right. Please tell me about sinusoidal alternating current.”
“Ah, yes! Sinusoidal alternating current refers to an alternating current that changes in a sinusoidal form with respect to time, and if you express it as a formula……”
Swish, swish━━━━
She wrote down a simple formula on the notepad.
『u= Vm sin（wt+Θο）』
“It becomes like this. It’s a flow where the value changes as time t passes.”
It was a formula that Karin had never seen before.
“What does Vm mean?”
“Ah, this means the maximum value of magic pressure.”
It was a concept that didn’t exist in the world, but Karin was also a character set up as a genius of the century.
Once Isabel pointed out the concept, her mind began to quickly spin and establish the concept.
“Then, what is ?????”
“I set it as angular velocity.”
Isabel immediately wrote down the next formula.
It wasn’t that difficult because it was a very basic concept at the level of the 1st or 2nd year of engineering college.
『w=2 π ft 』
“I’ll express f as 1/T!”
『2 π ft=2 π /T』
The flow of magic was ultimately similar to electric current.
It was just that the type of energy being transmitted was different.
‘If used well, it might be able to bring about a transformation in the world.’
Isabel would be at the center of that transformation.
She intended to devote herself to helping Isabel.
Isabel’s wish that people in the world would remember her with good memories.
‘That wish. I’ll definitely grant it.’
She made a firm resolution.
She, who had never properly expressed her emotions, had her expression harden as she thought such thoughts.
“What are the advantages of this method?”
Isabel misunderstood that expression.
‘Looking at Teacher’s expression, it seems like I was ridiculously wrong.’
So, she confidently continued speaking.
“It becomes easier to step up and step down the magic pressure.”
“If you step down the magic pressure, you can configure the mana circuit thinly, so the cost can be reduced.”
“Th-That’s right!”
Huh? Is it not wrong?
Isabel continued speaking.
“And because the structure of an alternating current magic generator is simpler and more efficient than a direct current magic generator, it will be very advantageous for operating the Transfer Gate. Through consistent operation, the mana consumed during ON/OFF can also be dramatically reduced!”
“……”
Karin eventually lost her words.
This 6-year-old child, blessed by the heavens, possessed a genius that put the existing geniuses to shame.
“So you applied that theory to this Siberun Mana Stone. Can I understand it as making the cold air continue to come out with minimal energy and cost, with maximum efficiency? And you thought that the shortcomings of the Transfer Gate could be overcome with the same principle. Is that right?”
Karin couldn’t hide her smile in the end. She endured it to the point where her lips twitched, but a bright smile eventually leaked out.
She, who had never learned to express emotions, was gradually learning how to express them.
✦✦✦✦✦✦
Karin urgently sought out Viaton’s room.
Viaton, who had just finished showering, was drying his hair while wearing a bathrobe.
He was a magic swordsman who could use magic.
Rather than using magic engineering artifacts, he was drying his hair by generating a hot wind himself.
“Sir Viaton. I have something to discuss with you.”
Viaton glanced at Karin reflected in the mirror.
Viaton’s gaze was not very favorable.
He didn’t really like having his personal time interrupted.
Therefore, his gaze was not only unfavorable but also sharp.
His voice was like a sharp north wind.
“If it’s not related to Her Highness, I refuse.”
“It’s deeply related to Her Highness.”
Viaton smiled broadly.
He stopped drying his hair and approached Karin.
“What can I get you to drink? What do you like?”
“I’m fine with drinks. However, haven’t there been any strange magical phenomena observed in the Arena Palace recently? Related to cold-attribute magic……”
“Hmm, well. Oh, there was. The mana leaking from Her Highness froze the basement solid.”
“I see.”
Karin relayed exactly what Isabel had told her to Viaton.
“……Therefore, this is a completely new approach. The level of side effects or adverse effects that Sir Viaton mentioned can occur in the direct current method as well. If it can be systematized and well-established, Her Highness Isabel will more than deserve the Norve Award.”
The Norve Award was an award named after the legendary Holy King, known to have unified the world for the first time.
People of later generations awarded the ‘Norve Award’ every year to the heroes who made the most outstanding achievements in each field.
However, Viaton’s reaction was more bland than expected.
“Hmm, is that so?”
“Did you know, Sir Viaton?”
“I didn’t know either.”
“But you’re so calm.”
It was strange from Karin’s perspective.
If it was the Viaton she knew, he would have reacted half-crazy by now, saying, ‘It’s a celebration! Our Princess is the best! Ha! As expected, she’s so cute!’
“I’ve grown to another level.”
“Grown?”
“There’s such a thing. Haha.”
Hadn’t he learned by watching the Emperor?
No matter how surprising things were, the Emperor maintained the attitude of, ‘If it’s Isabel, that much is natural.’
Viaton, who had gained great enlightenment, did not forget the lesson from that time.
“I’m not the same young fool I used to be.”
“……Yes.”
“So? What’s the conclusion?”
“I judged that I needed the help of a mage who is superior to me. To complete Her Highness Isabel’s theory.”
“Does that mean Her Highness needs a new magic teacher?”
“To be precise, we need a mage who is proficient in magic concepts, basic theories, as well as engineering knowledge.”
“As far as I know, the only one who has reached that level……”
Karin pondered for a moment.
In fact, it was very difficult for her to say these words.
“Is only Wilhelm.”
“Wilhelm?”
Viaton doubted his own ears.
“That Wilhelm who disappeared like a rat?”
“Excuse me? He’s not missing, he’s hiding?”
The fact that Viaton had tracked Wilhelm was a secret mission.
The fact that someone presumed to be Wilhelm had tried to kidnap the Princess was also not publicly known.
Viaton scratched his head and laughed.
“Oh no! I made a slip of the tongue!”
However, both Viaton and Karin knew.
Viaton’s words were not a mistake.
Viaton had subtly hinted at it to Karin.
“Well, it can’t be helped now. I was going to catch Wilhelm and beat him up.”
“……”
“You’re not very surprised.”
“Because it’s what I wanted.”
Viaton grinned.
“He’s known to the world as a great adoptive father who took in an orphan.”
“……”
“He wasn’t, huh. I should have killed him after all.”
Suddenly, a chilling wind blew.
This was a phenomenon caused by the surrounding mana moving on its own in response to the Sword Demon’s mana.
“Anyway, that b*stard tried to kidnap Her Highness. Well, he might not have, but it doesn’t matter. Anyway, I tracked him and lost him.”
“He wasn’t missing, he was running away from Sir Viaton.”
Viaton and Karin talked about Wilhelm.
Quite a lot of time passed.
Karin finally came to a conclusion.
“Wilhelm needs me.”
“What do you mean by ‘needs’ specifically?”
“In many ways.”
Karin bit her lip.
All the time with Wilhelm was a nightmare for her.
Viaton didn’t ask for more details.
“That’s why I think I can find him if I look for him. If he’s on the run, he’ll need me even more.”
“So?”
“There are still things I need to learn from Wilhelm.”
“Didn’t you hate Wilhelm?”
“I do hate him. But……”
She had lived through a long winter.
At the end of that winter, she had met a spring called Isabel.
“I want to protect my spring.”
So, she decided.
To return to Wilhelm again.
✦✦✦✦✦✦
The next day.
Karin visited Isabel’s room to say goodbye.
But at that moment, something unexpected happened.
“……What is the meaning of this, Sir Viaton?”
As soon as she opened the door, a sharp blade touched Karin’s throat.
