04. Uncomfortable Cohabitation (13)

I couldn’t answer her question about whether I made the three-person sword myself.

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Just in time, teacher Yu-rim came in and her class started.

“Come on, Jeongsuk. Class starts It’s magic mineralogy today, right? Then open the textbook page 122… Yes?”

School Yurim looked at Yuna, who was sitting next to me, and had a puzzled look at the student she was seeing for the first time.

Her teacher stared at her for a while and then opened her mouth as if he had belatedly remembered her.

“Oh, that’s right. Are you a transfer student? So, why don’t we go out right away?”

“It’s okay, sir. I appreciate your consideration, but I have thoroughly reviewed my preparations. Don’t worry and give priority to classes.”

Yuna acted kindly to the teacher in a soft tone. I thought that she had the perfect personality to be loved by teachers and superiors.

Even at such Yuna’s appearance, Teacher Yurim frowned and made a sound of pain.

“That couldn’t be… ah! It will work out like this.”

Teacher Yurim noticed Yuna and me sitting in the seat next to her. That smile made me feel a bit uneasy.

“Today’s class will take a simple slip test in the sense of reviewing the first semester class.”

“Yes? Suddenly?”

“It’s not a test from the first day of class, sir!”

Students in the classroom clamored at the sudden announcement that they were going to take the exam. There is no word more hateful to students than exams.

“Don’t worry, it’s not a test that goes into grades. Instead! Let’s each pair up with the person next to us to solve the problem.”

Saying that, the teacher gave me a short wink so that only I could see it. It was the nuance that she was asking for something well.

I can’t believe it’s the person next to me.

I looked at Yuna, who was sitting in the seat next to me. Just in time, she was also looking at me, and our eyes met.

I felt like I knew what teacher Yurim was aiming for.

Yuna smiled at her eyes with a friendly gaze, just like before.

“Please take care of me, Lee Jin.”

“Uh, yes….”

Couldn’t it be that we’ll continue to be connected like this in the future?

–

The test was a method in which teacher Yurim freely wrote the answer by discussing the questions written on the blackboard with the person next to him.

The words were a paper test, it was more like a discussion class between two people.

I solved the first problem step by step with Yuna and I sitting at each other’s desks.

『I am going to process a magic stone to make a staff for a magic hunter. At this time, assuming that the hunter’s unique skill is fire magic, magic power is A rank, and the magic stone used is B rank, what is the most ideal mineral to use if wood is not available?

“This is simple.”

“I will. It’s an easy problem.”

As expected, the eldest daughter of Claprot. She seems to have figured out the right answer in an instant, perhaps because she is knowledgeable about minerals.

I nodded, and at the same time we put our thoughts into each other’s mouth.

“It’s clast.”

“It’s volcanic stone.”

“… ?”

“Yes?”

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Volcanic stone is a hot burning mineral with the aura of lava that is mainly found in the land where the lava giants of Titan Tower live.

And clastite is a glass crystal-like mineral that is formed when the volcanic stone meets cold air and cools rapidly.

As if it was difficult to understand, Yuna slightly wrinkled her beautiful brow and tilted her chin.

“Why clast? Isn’t volcanic stone the one that has the most outstanding flame amplification effect when it contains B-rank or lower magical power?”

“Normally. But here, read this part.”

I underlined the ‘mana A rank’ part of the question and the ‘in case wood cannot be used’.

“… ? Why is this? Even if magic is A rank, magic stones are grade B anyway, and the reason why we assume that wood is not used is because this class is magical mineralogy, isn’t it?”

I shook my head slowly.

Yuna transferred school today so I don’t know yet, but Teacher Yurim tends to teach meticulously even though she looks like that. Never add meaningless questions to a problem.

“If you are a magical hunter with an A rank in magical power, that means your hunter rank is also an A rank. Would such a person really only use magic below B rank?”

Yuna’s expression, which used to make a suspicious expression, became serious as if she realized something in her moment.

“That….”

“You can assume several situations. Even an A-rank hunter didn’t have enough money to make a staff using A-rank magic stones, so the lower limit was slightly lowered, or something like that. However, with a high probability, it can be assumed that the skill is A rank. And here.”

I put a dot with a ballpoint pen on the part where I couldn’t use wood.

“Why not use wood? Of course, wood would be used to make a wand. It’s different from the magic conduction efficiency.”

“Well, as I said before, the class is magic mineralogy….”

“In that case, I would have written the case of ‘not using’ wood. Is there any reason to write it as ‘unable to use’?”

At my words, Yuna looked into the problem and shut her mouth. I waited for her to come up with an answer on her own, and after a while she opened her mouth slowly, uncertainly.

“No way, there is a reason why I can’t use wood… ?”

“Right. The hint is in this part.”

I quickly underlined the part of the question, ‘Inherent skill is fire-type magic’.

“It happens often. A hunter who breaks clothes and equipment when using skills. This Hunter is also a release skill, so you can’t use your staff as wood. Your own fire will burn your staff. Do you know the characteristics of clast?”

“Absorption and storage of heat… ah!”

Clastite has a unique property of being able to store a large amount of heat. In a natural state, the heat gradually escapes, but there is no problem if you have a flame-type skill that causes fire on its own.

“Did you have skill memorization in mind? Storage, not amplification?”

“If an A-rank hunter makes the most ideal wand with B-rank magic stones, clastite would be closer to the correct answer than volcanic stone.”

Yuna nodded her head slowly as if she understood my explanation.

“To get there in such a short time… Lee Jin is very detailed about minerals, isn’t he?”

“Yes. I have been interested in it since I was a child.”

Since ten years ago, in order to make the strongest sword, the strongest material was needed, so I studied and memorized the materials that could be used for weapons.

Even in the first semester, my written grades were always close to perfect.

It was a problem because I couldn’t submit the assignment, so I got a failing grade for practical skills.

Yuna looked at me with an admiring expression, then pointed straight to the second question and said.

“Then what about this? Here, this sentence in the second problem….”

“Ah, this part….”

I took turns discussing the problem with Yuna throughout the class.

“Jin Lee is amazing.”

“No, Yuna is truly amazing. You understand immediately when I explain.”

Although most of the problems were solved by me, Yuna’s knowledge was above average, befitting the daughter of the chairman of one of the world’s leading steel companies.

I never thought I would meet someone I could communicate with so well.

Considering that Yoon Seo-hee couldn’t understand at all if I used even the slightest difficult words, and that Baek Ji-su wasn’t very detailed about material engineering, I felt like I had found a friend with the same taste for the first time.

And when the moment of scoring the test came, Teacher Yurim stood at the podium and read through each of the test papers submitted by each team.

“The first question was written mostly with volcanic stones. This is about half correct, but… Hwajeongseok? It’s a waste of material. It’s not even ideal. Well? Oh oh.”

School Yurim’s expression changed quite differently and became interesting. Is the figure looking at this side of the corner reading our test papers?

“Umm, clast. That’s right. This is the correct answer Second problem… Is this correct too? Third one too… hehehe.”

Soon after checking all the team’s test papers, including the one we submitted, Teacher Yurim looked at us from the table.

“Is Lee Jin and Yuna the only team with a perfect score? Congratulation.”

At those words, Yuna and I looked back at each other and smiled brightly.

It is not a test that is included in the grade, but it gave me a deep sense of achievement that the two of us worked hard to get all the correct answers.

Looking at the students exhausted from solving problems for only an hour or so, teacher Yurim opened his mouth with a smile.

“Was the problem very difficult? It also has the meaning of looking back on the whole process of the first semester, and in fact, the process of solving it is more important than getting the answer right. The test would have been much easier for someone who had made everything he had learned so far into his own knowledge.”

“Sir! However, it was too difficult!”

Cries of resentment continue in the classroom. However, Teacher Yurim did not seem to care at all about the protests of the students.

“Actually, it wasn’t a problem I made to solve, but someone got a perfect score, right? That’s it.”

“Ooh!”

He was quite a teacher full of his own pace.

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Just like that, after the magic mineralogy class, it was break time.

The next class is material engineering, so I was going to move the classroom before it’s too late, but Yuna called me from behind.

“Binary. Wait.”

“Huh?”

“It only takes a moment. Is it okay to talk?”

Wait a minute, well… I nodded and waited for her words.

“I couldn’t hear the answer to the question I asked earlier. The sword that cut the banshee was the one Lee Jin made, right?”

“Oh, that.”

I slightly averted my gaze and scratched my cheek. How to do it.

Now I have already used a three-person sword in front of too many people to hide it. I don’t know what Yuna is thinking, but she doesn’t really have any reason to lie, she just decides to be honest.

“Right. I made it.”

“As expected….”

Yuna shook her head as if she finally understood.

“Hey, Lee Jin. I have a request for you.”

“Please?”

“Yes.”

She straightened her posture somewhat and smiled brightly at me.

“Can you come over to my house today?”