…………

"Oh? What's wrong -? Demon King -"

My voice comes down from over my head as I put my foot on the throne, drooling my body on the floor, in a grumpy position.

"- Oh, Leila. No, this is it."

That's what I'm saying. I'm gonna show you the book I was reading.

"Oh? Is that... a magic circuit book -"

Yes, what I had was a magic circuit book I bought the other day in the city.

Now that I have succeeded in creating a new weapon of mine, Sin, I feel like I am studying the magic circuit to bury it... Even if I feel like it, unfortunately I don't know what it is.

I bought it as a junior intermediate advanced, but even that junior, there is a verse written from the beginning here that assumes that there is a certain knowledge of what to say, and I already have a noticeable lack of knowledge of that assumption, and my head is being filled with hatena.

Or, first and foremost, I don't know if they say magic theory or anything. My magic, it's the way you can do anything you imagine, so there's no theory, no shit.

I want to incorporate a magic circuit where enemies burn from the place they slaughtered to make Sin the most powerful sword in the world - but at the point before that, I was there first.

"If you don't mind, I'll tell you."

"What - this, you know?

Wake up Gabba.

"Yep. I used to work on magic like that."

"Do me a favor"

I snorted at her suggestion in two replies.

"Okay, Demon King. As I'm sure you've said once before - do you remember that the common magic of today is how it is activated -?

"Yeah... assemble a magical skeleton with chants and complete it as magic by pouring magic into it, was it?

"Yes -. And the magic circuit represents the part of its skeleton in letters and prints, and by carving it into something, it serves as a substitute for chanting, pouring magic into it and activating magic - If you're using magic in the first place, does it feel like all of the imaginary parts of the previous stage of activating magic occur in the drawing?"

"... I see. Now the explanation was so easy to understand, why is it so complicated to write about it, this book..."

Maybe it was quicker to ask Leila everything from the beginning?

"Well, magic can be an easy weapon for some people to use, so it must be horrible for the ruler class that everyone has a weapon - Therefore, it is conceivable that magic is deliberately rendered difficult so that the general public does not know - In the case of the Demons, they can all use magic, so it doesn't really matter."

- Oh, I see. Are you regulating magic technology so that civilians don't use force? That's a kind of sword hunt, so to speak.

For this there are those who make battle a business of adventurers, etc., but the magical threat is in the 'invisible' place. In short, if you're an adventurer or something, it's easy to be alert because you have a weapon in your hand, but if you're magical, you'll have a strong weapon that kills people, even if your opponent has nothing with his bare hands.

Surely that would be a major threat from the ruling class. It is also incomprehensible to lay down certain controls.

"Now, here's a drawing of that magic circuit - this can be divided into several stages -"

That said, she starts writing drawings on the whiteboard I put out for Iruna's study.

"Let's go from the simple - For example, the magic of a fireball can be divided into three parts: a circuit that produces a fireball, a circuit that controls a fireball, and a circuit that ejects a fireball. If you take a step further, you can add" circuit for controlling the ejected fireball "or" circuit for deforming the ejected fireball "."

When she finished saying the words, the whiteboard had one magic circuit in place.

"Ho... wow"

Do each circuit connect together to form one large circuit?

"Huff, this is still preliminary.... Now, this board is really useful. I wanted to meet this board a long time ago."

- Then the magic circuit class by Teacher Leila continues.

Like the sorcery circuit she wrote up earlier (earlier), the sorcery circuit seems to combine several circuits to function as one circuit.

However, this circuit apparently won't activate unless the first and last are connected so that a single stroke can be written.

Sure, even when I work out my own magic to activate magic, it doesn't activate unless I circulate magic all over my body. I guess it's the same logic.

And because even if the circuit becomes too large, it will not be able to circulate magic successfully, the magic circuit will be asked to build a circuit that can be connected with compactness in one stroke...

"... does this need to be planar?

"Yes?"

"No, you don't have to think about this just planarly, do you?

What I thought was, instead of creating a circuit in the plane, if we had a more three-dimensional construction, like 3D programming, we could make it a compact configuration even when the magic circuit gets bigger.

Yes, after explaining it to her, but I keep saying "no, but no" along the way.

"Anyone would come up with this much on a boulder, and I guess that's why I can't. Nothing, forget it. - Leila?

When I asked her so surprised by her lack of response, Leila suddenly returned to me, wondering if she was stunned, and this time she took my hands with such great excitement that she could not imagine from her usual slight appearance.

"Ma, ma, ma, demon king!! Shh, amazing -!! It's a great discovery of the century.

"What, oh, whoa?

"I see, I totally assumed the circuit was something to write on the plane -! Then sure, you can build a compact magic circuit -!! Sorry Demon King, I can do it -!! Now I beg your pardon -!!

"Oh, wow, okay"

And when she had said that, she ran well to Toto, and went into her room, which was being given.

"... continued, I wanted you to tell me"