Chapter Index

    Honestly, if I didn’t know the formula, it would have been difficult even if I was smart.

    ‘Thank you to the person who created the formula!’

    It’s not easy to say that magic and magic manipulation at the same time is easy, but it wasn’t difficult, perhaps because my head turned faster than in my previous life.

    ‘Well, I still don’t have enough magic power.’

    Thinking of the 3-line formula that combines geometric progressions, I understand the explanation that it has the power to wipe out a country with a single hit of a 9-class spell…

    ‘what… ?’

    So what kind of magic did Maria in the original work prepare?

    It felt much better than class 9…?

    * * *

    Maria knew from the beginning that her brother was watching.

    How cute the silver hair and red ribbon sparkling through the bushes,

    As I unconsciously turned my head forward, the teacher who was supposed to be concentrating in class was also glancing at the bushes.

    “……”

    “……”

    I made eye contact with the teacher.

    Cute, right?

    Cute.

    We reached a consensus just by looking at each other.

    “Teacher, that’s all for today.”

    “Yes, lady.”

    The class itself was mostly about what I knew. Moreover, thanks to Marian, there was nothing more to learn about formulas.

    I quietly walked towards the bush.

    “Shhh…”

    I raise my finger towards Emilia and sneak up.

    “Marian!”

    I hugged my younger brother, who was thinking deeply about something, with both arms.

    “Uh, sister?!”

    Then, as if surprised, his eyes opened wide like a rabbit.

    “What are you thinking?”

    “Magic?”

    Every time I tilted my head, my pigtails shook and caught the light, making me look like a fairy.

    “Marian, shall we go to the room?”

    “In the room?”

    “Yes! You have to prepare a gift for dad too.”

    “Ah. Now that I think about it…”

    “No way. Did you forget?”

    “Hehe.”

    The two girls held hands and walked happily together.

    Then suddenly Marian stopped walking and turned her head.

    ‘Actually, I was planning on going to the parade ground, but I guess the knights are taking care of themselves.’

    “Marian?”

    “Hmm? Are you my sister?”

    Our little Maria. Just thinking about it for a moment makes me wonder why I’m so curious. so cute!

    * * *

    a few days ago.

    Suddenly, an emergency summons order was issued to the knights.

    An emergency call that never fails.

    Even the vice-captain himself couldn’t hear the reason.

    ‘what…? Could it be war?’

    All the knights belonging to the family left behind their work and gathered together.

    “Hello.”

    A small child was looking down at them from a hastily made platform.

    Yeah, kid.

    Her name is Marian Arjein, the second daughter of their master, Aden Arjein, and the younger sister of Lady Maria, who will become their master in the future.

    However, there were articles that expressed displeasure at the statement that the reason for the convocation was simply because they wanted to ‘see’ themselves. This is because there were people who were enjoying a break, and there were also people who broke their schedule for a sweet date with their lover.

    While the atmosphere was becoming so irreverent.

    “I’m sorry, some of you may be on vacation, but I felt bad for calling you out of the blue, right? I understand.”

    ““No, miss.””

    Whatever the reason, my conscience was pricked at the thought of allowing such words to come out of the mouth of a small child, no matter how many of the ladies of the family and knights of noble birth were proud of themselves.

    However.

    “It’s a magic knighthood, but there are many people who can’t use magic in battle?”

    Unlike his polite appearance a moment ago, his tone seemed a bit pitiful, and to some knights, it was almost like disgust.

    The atmosphere became subtle again.

    He took it upon himself to break the awkward atmosphere.

    “Hmm. Well, I am confident in my swordsmanship skills.”

    “Haha. I’m a bit weak at calculations…”

    Afterwards, some good knights spoke up, but the answers they received were sharp.

    “Hmm. Are you guys? There are people who say they can’t use magic even though they are members of the Magic Knights?”

    The knights were perplexed. Is this the mood of a 5-year-old child? I felt like I was scolded by my teacher as a child.

    “Well, I’m not an old man.”

    “I… am a virgin who hasn’t even gotten married yet…”

    “It’s not that I can’t use it… I guess I can’t use the sword while bending my fingers during battle.”

    Naturally, excuses poured out of the knights’ mouths. They were on the finite side.

    “That’s why I’m training hard.”

    Some arrogant knights glared at the young lady without hiding their uncomfortable mood.

    I have to stop this.

    “Hmm. Are you working hard? Well then, that’s good.”

    Instead of being scared, the young lady said, “Look at this guy.” I snapped my fingers as if I was doing something.

    Even when you think about it, is this true? I thought about it, but I stopped thinking when I saw the paper flying in front of me.

    Papers flew not only to himself but to all the knights.

    (1) What is the value of circuit 4 added 7 times, circuit 6 added 9 times, and circuit 8 added 4 times?

    ‘litmus paper…?’

    I looked at the podium in bewilderment.

    The young lady smiled as if she had been waiting and began to explain.

    I heard rumors that the second girl was a genius, but I didn’t feel like dealing with a child.

    “If you memorize this, calculating formulas will become much easier.”

    The second test paper flew in front of the drivers.

    “…is this?”

    I couldn’t help but look at the figure waving its short arms as if urging me to take a look, and what was written there.

    (3x² to the designated horsepower value of 9×8 + x 3.14 to the target value of 8x……)

    It was a formula. Organized more concisely than existing complex formulas.

    “What is this?”

    Before they could express their doubts, a melodious voice was heard. Jane McQuire, a recent newcomer, was a rare woman within the Order. Everyone’s eyes passed by her and focused back on the podium.

    The lady got to the point.

    “I applied my improved mathematical calculation method to the multiplication tables. If you memorize this, you will be able to do simple calculations while fighting.”

    A formula to apply to magic. The writing was crooked, but not difficult to read. Did you write it yourself?

    no way. You improved the existing formula?

    Is that even possible?

    “……”

    A new magic trick?

    Questions arose in everyone’s minds, but no words were spoken.

    “Ah. It’s time to finish studying, sister.”

    The way he went down the podium and ran ‘do-do-do’ as if he had lost his adult appearance was exactly like a child of that age.

    I was looking behind me without realizing it, but as if I felt my gaze, I turned around.

    “Shhh! Of course, this is a secret within the family.”

    He put his little finger to his mouth and made a serious expression, as if he were an agent mentioning state secrets. That look is so…

    “Ugh.”

    A groan was heard. When I look around, I see a man trembling and clutching his left chest. It was Hans who was singing about wanting to have a daughter.

    That wasn’t all.

    “Ears, cute…”

    “…broken baby…”

    “Murderous cuteness.”

    I hear strange words.

    The knights were also looking at the young lady as if they were fascinated. We went to each person’s daily lives.

    “Ah?! Date at this time! You can still go! Agatha, wait!”

    “Well, I also have a play scheduled for today. Please excuse me, vice-captain.”

    It was a vacation from the beginning and I nodded.

    *

    next day.

    “17×18=306 x 3.14 to the interference value of mana…”

    Several knights were carefully holding the paper the young lady gave them and memorizing the formula.

    “Tsk. To be swayed by something a child said.”

    Of course, not everyone was like that. The proud knights swung their swords as usual.

    No matter how much they served the girl, when they were suddenly told to memorize strange formulas, most of them put it off as if they had received some annoying homework.

    but.

    “…Is that really Jane?”

    A rookie who until recently couldn’t even use simple magic during battle. During sparring, isn’t it possible to use the class 3 magic Blink and Haste naturally without any delay?

    Her opponent was a veteran knight from the duchy’s collateral line.

    “Ugh!”

    But a surprise.

    Jane won by a landslide.

    “Now, how did you…?”

    “Everyone, the lady gave you formula, right?”

    She tilted her head.

    “Okay, that’s it!!”

    “?!”

    Kwakwakwak!

    It wasn’t just Jane. All over the parade ground.

    “Now, what about you?!”

    Powerful magic poured out from the hands of those who were not professional wizards. The sturdy target was on the verge of breaking. That’s a class 5 attack spell?! Until recently, they could barely succeed in level 3 magic. It was something to experiment with.

    The formula changes subtly every time the mana is arranged. If you do not combine it with the formula in a momentary manner, you will only lose horsepower. When it comes to class 5 attack magic, the formula to calculate it is not easy even if you use all your fingers and concentrate all your attention, so it was a level that only magicians who were blessed with mana and had extraordinary brains could reach.

    Not even a minute has passed…?

    They hastily took out the crumpled paper in their arms.

    30 minutes later.

    “You lady is a god!”

    These were the words uttered by an ostentatious noble knight.

    “……?!”

    There was a gugudan craze among the knights.

    * * *

    I miss my daughters.

    “Matriarch, a guest is waiting for you.”

    “Not planned, send it back.”

    Arden, who returned home, tried to cut off the butler’s words, but was unable to.

    “This old man has waited this long, isn’t it too much?”

    A voice suddenly sounded.

    “Count Hermann.”

    In the evening, a sudden guest arrived, but I couldn’t easily ignore it.

    “You heard it, matriarch.”

    “What do you mean?”

    Herman Haywards.

    As an elder of the duke’s family, he is not an easy person because he is not only old but also seasoned even though he is looking forward to retirement.

    “You’re pretending not to know. This is a topic that has already come up dozens of times.”

    “I don’t know.”

    “I also agree with their opinion. It is only natural to fill the empty hostess position.”

    “Count!”

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