The Demon King’s Magic

I switch my anguish and decide to finish the work so I can go out. “Anyway, let’s get this over with!”

A collection of problems made by Sadie given to me as punishment. Even though I felt depressed, I had no choice but to sit at my desk and get started.

Enuma recognizing the situation says, "Hah, you commenced without delay."

I confirmed by saying, “Because Sadie would get angry. If hated, I… would be troubled."

Enuma remains silent which created tension. I broke the silence with, “Hey, don’t just keep silent. It’s embarrassing!”

Enuma was rather fascinated, "No, yes, well. This is the first time seeing such tone and demeanor."

The Demon King stares at me as if impressed that I was obedient towards Sadie. After exchanging a few words with him, I immediately concentrated on the magic math problem. As quite the expository attitude I have. I speak out my thoughts, “Let’s see. divide this section, substitute it here.” Sadie’s little quiz problems are a little more difficult than what appears in the Academy class. Careless mistakes are really fatal because of the tedious formulas. What’s worse, Sadie will never give partial credit for using the right process even though the solution is wrong. Since only correct or incorrect answers are judged, it takes time to verify.

Enuma seeing the work I am doing, speaks up, "Hoh. Is it a matter of formulas?"

I don't want to be disturbed and say, “Ssh, I’m trying to focus, so don’t talk to me right now.”

The Demon King seems to be bored and looked into the problems that I solved. Then, while looking at my answer, the Demon King. "Hmm. Your fundamental academic ability seems to be superior to your father’s."

I trembled with such shock that I broke the pen I was holding. With pride to be told better than my father, I say, “Well…I am superior to father?”

Enuma curious, "Hmm? Is something wrong? No matter how you look at it, is he not a single-minded fool without any decent academic achievement?"

It was the first time I was told that I was better than my father. It is true that during his Academy years my father was not good at listening to the classroom lectures. However, I had never been told that I was superior to my father. The only thing that was said to me was a subtle compliment that “You are more on point than your father”.

That’s why I was puzzled by the words “better than your father.” Enuma continued, "Well, despite your competence at solving such formulas, it would be of no use in the real world or in magical research."

being spoken so bluntly, I clamored “Wha-?!”

Enuma said, "Even if used, this is merely a way to demonstrate academic ability. In other words, merely for the sake of examination."

Everyone once thinks, “What’s the point of remembering this?” at one time or another. The answer to the question, by the Demon King himself, saying, “It useless” hits right in sensitive spot!

Enuma seeing my expression change, "What? Suddenly hanging your head and your hands are still?"

I retorted, “Whose fault is that?"

Why am I even doing this? I suddenly felt like an idiot. Because the defeated Demon King has declared “it is useless”.

Enuma continued, "Even so, you humans are inefficient. Why put such efforts to calculations that have no application in your lifetime? Is the answer that important?"

Then, while sighing to me as my hand stopped, the Demon King said that our way was “inefficient”, besides being meaningless in the first place. I ask, “Inefficient?”

Enuma went into a lecture mode, "This is so. Rather than going through each and every detail of the calculation, it is more efficient Auto-Calculate the result once you keep the equation in mind."

I couldn’t understand what the Great Demon King was saying. But a certain keyword rang in my head, “Eh, automatic calculation? What’s that? “

Enuma recognized the issue, "Ah, that is. Come to think of it. You humans are incapable of that. No helping it then."

The Demon King whispers as he immediately realized my doubts. After a few seconds of silence, the Demon King made me a suggestion.

Demon King Enuma gathered a splendid idea. Told me, "Very well. If you cannot go outside unless you are done. I shall offer a little of my cooperation."

I questioned him, “Cooperation? What? Are you saying you’ll solve it?”

Enuma explained, "I am not. Now follow my instructions, draw a Contractual Magic Circle for Magic Acquisition."

Does he intend to have me perform a ritual to learn a certain magic?

Perplexed I asked, “Magic Circle?”

Enuma goes into lecture mode, "The level of power and accuracy of magic increases through training, but one cannot learn any beginner magic unless a contract is invoked by magic circle. Speaking of, have you ever drawn your own magic circle?"

I explain what i do know, “That is the routine. Don’t you learn the basic magic attributes, wind, lightning, and Terran by contracting yourself? The only way to grow is by doing the work yourself.”

Enuma understanding explained, "Hmm. In that case, it should suffice. Good, draw a six-pointed star on the floor, and cast the spell I chant while crafting magic."

With hesitation I ask “… So what’s going to happen?”

Enuma with glee says, "You shall be more efficient!"

With the goal to finish early and go outside. I was instructed to make a magic contract while studying. The Demon King suggested being more efficient. I was very interested in it.

Enuma explained, "The chant is ‘Ẅeṋḋoẁ ẕuṁa ai ḱuṟoṧo ẝuṭo ẝeiṧu ḃeṋṟii… now, chant it!

Sure enough, it was a chant that I had never heard before. In other words, this is the Demon King’s original.

I nervously ask, “Wha-… What kind of magic is it?”

It didn’t matter if he was the nemesis of mankind, because I may be able to use the magic of the Great Demon King.

Enuma explaining, that magic is automatic calculation magic, "Excel"

I’ve never heard of it. What kind of magic is it? Well, that’s fine.

Curiously I said, "Well, alright. Whether may happen…Contract with me, ‘Ẅeṋḋoẁ ẕuṁa ai ḱuṟoṧo ẝuṭo ẝeiṧu ḃeṋṟii’… The name of the power I seek is "Excel"!”

Now that I thought of it, it’s been a while since I signed a new spell. A unique pale light overflows, the magic circle on the floor erodes into my body, envelops it, and feels like I’m wearing something new. I express, “With this, am I okay?”

Enuma stated, "It is enough."

The magic circle on the floor disappeared cleanly, too. This is also proof of learning a new magic, and it went well.

I asked, “So? What should I do now?”

Enuma directed me, "Cast Excel, imagine an equation in your mind and assign the figures. The chant is the same ancient magic words as before."

I hestitate but do as told, “U-understood ‘Ẅeṋḋoẁ ẕuṁa ai ḱuṟoṧo ẝuṭo ẝeiṧu ḃeṋṟii’”

Chanted. Now, what’s going to happen? I felt a little, no, more and more a sensation like my head clearing up. This is, similar to the feeling you get when you use your head for calculation, memorization, etc., and it is going well. In this situation, I envisioned the equation in my head and substitute the numbers?

I speak out my thoughts, as I solve the equation, “…… 4545072…… eh?”

The moment I applied a number to the equation envisioned in my head; the solution came to mind in an instant!

Enuma with glee said, "Automatically calculated. That is the answer."

I was astonished, and exclaimed, “Whaaaat!? A-absurd, such a long calculation in an instant?”

Enuma said, "This is so. All the calculations and functions divided into fine denominators and numerators in the equation, vision even the formula mentally, the rest will automatically derive the answer."

Excitedly I announce, “Awesome!?”

Enuma bragged, "It is what I’ve developed, "Excel""

Unbelievably, it is this detailed and this fast. If, if this were possible? Everything in the field of magical calculation, even the purpose of the exams. I am thinking about the possibilities this unlocks. It makes me blush with excitement, “Wai-wait a minute! Now, after undoing the magic, l, let’s confirm it”

Enuma understanding confirms, "Verify as often as you like."

I confirmed the answer the auto calculation is flawless, “Answer…4545072…It’s the same.”

Enuma asks, "Do you understand?"

I look forward to using it more, “This time with another problem!”

With this, performing long-running calculations, being wary of careless mistakes, do I even need to check again?

After completing a lot of work, I get excited. “Hey, hey!”

Enuma amused, asks, "How do you find it? Efficient, is it not?"

I enthused and said, "It’s great!”

I was delighted. I never thought I could learn such convenient magic. This is useful. Or rather, as long you know the equation, the rest is easy. This is the edge I needed in math of magical circles when competing with the princess. However, I hadn’t realized yet. Magic mathematics wasn’t the only magic and knowledge possessed by the Demon King, rather this was just the beginning.