Alchemy Principles of Type-Moon World

He took a breath, his tone gradually becoming serious. "This isn't just a simple calculation problem; it's the most basic numerical sensitivity that you lack in your daily lives and in your studies of magic."

Xing Qingqiu glanced out the window, catching dappled sunlight streaming into the classroom through the glass, but his gaze remained undivided. He continued to walk to the edge of the podium, his fingers gently gripping a piece of chalk, his gaze never leaving the students' faces. "You may sometimes think that a numerical change is just a minor issue, but your intuition and sensitivity help you quickly spot deviations from the norm, rather than waiting to address them until a real problem arises."

Xing Qingyu took a breath and subconsciously glanced at Flatt. He looked very energetic, but had no intention of raising his hand to argue, which made him feel slightly relieved.

"Next, let's look at the lack of sensitivity in units." His voice was low and clear, breaking the momentary silence. He slowly walked to the blackboard and wrote two numbers. "For this problem, I want you to calculate the speed of an elderly woman going to the market to buy vegetables."

He gently patted the chalk dust off the blackboard, turned around, and scanned the students again. "Look, there are two answers here: 400m/s and 800km/h. These are the most exaggerated answers I've picked out, and they appeared on your papers—"

"——Let me tell you in advance, both of these answers are wrong."

Xing Qingyu gently turned toward the blackboard and pointed at 400 m/s. "Students, look at this. Do you have any idea what these two numbers mean? 400 m/s, this speed, can you imagine what it means in the real world?" Xing Qingyu paused, then turned his gaze back to the students. "This is no joke."

"Probably... about the same speed as a car. The 400 m/s number was mine." A student in the audience finally mustered up the courage to raise his hand. His voice was hesitant, but he honestly admitted that one of the answers was his. "It was indeed a bit off the mark. I didn't think too much about it. I just assumed it was a round number—"

"—But we usually use imperial units, so it's a little hard to estimate the size using this system."

Xing Qingyu was stunned for a moment. He stood in front of the podium, his hands hanging naturally, his head lowered, and he was silent for a moment, as if he was thinking about something.

He really hadn't considered this issue. This is Britain, and they have been exposed to the imperial system rather than the metric system since childhood.

"Hmm..." He paused, his eyes softening. "This really isn't your problem." He nodded slowly, his tone becoming much gentler. "I was inconsiderate."

He shook his head slightly, as if adjusting his thoughts.

The students in the audience watched him quietly. The atmosphere, initially tense, now relaxed, as if everyone was waiting for his explanation. Xing Qingyu stood up straight again, raised his hand, drew a circle in the air, and began to guide the students' thinking.

"However, we still need to be familiar with the metric system in the future." He walked to the blackboard, gently touched the wooden surface at the edge, and continued explaining, "I think you should all be able to experience the difficulty of the imperial system." Xing Qingyu's eyes fell on a student who was looking down in thought. Seeing him nod slightly, Xing Qingyu continued:

"One yard equals three feet, and one foot equals twelve inches. This complicated conversion will cause a lot of trouble when doing calculations." His fingers slid lightly along the numbers written on the blackboard, as if using this action to help students digest the information.

He paused, then walked to the podium, leaning slightly, as if to get closer to the students' line of sight. "So," Xing Qingfeng said slowly and clearly, "we should learn the simpler and clearer metric system. This will facilitate our future studies and practice."

Xing Qingfeng pointed to the number he had written on the blackboard. "In metric units, the speed of sound at normal atmospheric pressure is 340 m/s." His voice was slow and forceful. "Do you understand what I mean?" he continued, his eyes gently sweeping across the classroom. "400 m/s is already faster than the speed of sound—"

"—Is this a speed an old woman can achieve?"

"Order Xing, I've definitely seen an old woman like that!" Flatt's voice broke the silence again, brimming with excitement and nostalgia. "That old lady from the Creative Arts Department, I once accidentally knocked over her new creation during class." Flatt's voice wasn't filled with fear at all, but rather excitement. "Oh, how should I put it... She clearly asked me to demonstrate, but she seemed mad. It was terrifying."

It was the voice of the person Xing Qingyu least wanted to hear.

"Then I heard the sonic boom," Frater said. "Then I realized I was thrown out of the classroom."

Xing Qingyu suddenly understood why this guy was willing to accept students even though he had no classrooms. He also understood how tiring it must have been for him to vow to recruit such an outlier half a year ago.

He looked around the layout of his classroom, seemingly trying to find a good spot. Finally, his gaze unconsciously moved to the back of the classroom, his eyes fixed on the clock hanging on the wall.

"Flat," Xing Qingqiu's voice sounded again, his tone cold but with a sense of urgency, "Was the old woman you mentioned moving at a similar speed?"

As soon as Xing Qingfu finished speaking, the air in the classroom seemed to freeze in an instant. Almost without any warning, Xing Qingfu's figure suddenly disappeared from the podium like an arrow piercing the air, and everything around him seemed to stop in an instant.

Before the students could react, Xing Qingfeng appeared before Flatt like a ferocious beast. At that moment, everyone felt an indescribable vibration in the air, and could even hear a slight buzzing sound coming from all directions.

The moment Xing Qingjiu appeared, a deafening sonic boom suddenly erupted in the classroom. The compression wave in the air instantly released, bringing with it a shockwave that was difficult to ignore. This was followed by a violent gust of air. This airflow, carrying intense pressure, swept through the classroom, nearly choking the students present. However, the draft papers and test papers on their desks remained strangely motionless in the storm.

Flatt's body was suddenly swept back by the turbulent current, nearly losing his balance. His arms instinctively reached out to steady himself. His hair was whipped around by the air, as if it had been whipped by a strong gust of wind, and he could feel the intense pressure on his face. However, his eyes were fixed on Xing Qingjiu's figure, a mixture of surprise and curiosity.

"Oh, it feels exactly the same!" Flat nodded, but found that Xing Qingjiu had no intention of letting him go, "As expected of Order Xing——"

"—Wait, Order Xing, you want to..." Flatt hadn't finished his words when he suddenly felt a huge force pressing down on his head. Before he could react, Xing Qingqi had already grabbed the top of his head and dragged him up from his seat with irresistible force.

"I'll change your seat." Xing Qingqi's voice was calm and indifferent, as if he was doing something extremely ordinary. He said it, barely giving Flat any time to react, before suddenly exerting force. With a loud bang, the two figures vanished into thin air without a trace.

The air in the classroom suddenly became silent, with only a slight vibration lingering. A few seconds later, the air began to vibrate again, and Xing Qingfeng reappeared on the podium, still standing straight and with a normal expression. But Flatt had disappeared from his original position without knowing when.

Behind the teacher, Flatt was completely draped over the classroom clock, which he had originally held in his arms. His collar was tightly around his neck, almost like a rope holding him firmly in place, swaying in mid-air like a puppet on a hook.

"I just used a little boosting magic. Don't worry about you falling or your clothes getting torn." Xing Qingqu stood at the podium, his voice calm, as if his actions were just a trivial matter. "You need to reflect on this lesson."

------------

Next, I plan to move on to the self-defense class, then briefly write about the math class, and then move on to the part where Xing Qingfu's blood pressure rises again.

As I was writing, I suddenly realized that the British usually use the imperial system, and they would definitely not be able to react to the metric system for a while, so I designed the plot of this chapter.

The above is a new book by a new author. Please vote and give me feedback. Thank you!

Volume 50: Xing Qingjiu’s Perfect Arithmetic Classroom: . Is he really a genius?

Xing Qingjiu's office was located in a corner of the El-Melloi classroom. Windows surrounded the office, allowing sunlight to stream in unimpeded, casting soft, dappled patterns on the floor. Outside, an old tree's branches swayed gently, its leaves rustling in the breeze, a stark contrast to the stillness of the room. The air was filled with a faint woody aroma, mingled with the faint aroma of alcohol.

——In other words, as long as a room is occupied by Xing Qingjiu for a period of time, the room will inevitably be tainted with the smell of alcohol.

His desk was neatly organized, several heavy textbooks and a stack of notebooks neatly stacked. In one corner, scattered unfiled documents lay. Next to it stood an old-fashioned clock, its hands ticking away with a clear, leisurely sound. Xing Qingqiu put down his pen, his eyes casually scanning the tabletop, and suddenly stretched.

"Oh, my waist is a little bit weak..." He muttered softly, and rubbed his waist unconsciously, feeling a slight pain, and then sighed, "It's only been a year and it's already like this... Tsk, I feel more tired than running around the world before."

He turned his neck, his face showing a trace of fatigue. He subconsciously wanted to directly interfere with his own body, but after thinking for a moment, he gave up.

Xing Qingqiu stood up from his desk, trying to straighten his somewhat stiff body. Deciding not to sit any longer, he simply paced back and forth around the office. His footsteps were light and silent, accompanied only by the chime of the desk clock and the occasional rustle of the wind outside the window.

"I feel like I should do some...radio gymnastics?" He muttered to himself, stretching his limbs and looking around the room with a dazed look in his eyes.

Just as Xing Qingyu was doing these boring stretches, there was a gentle knock on the office door.

"Ah, please come in." He turned slightly, his eyes calmly fixed on the door, and responded in a calm tone.

The door opened gently, and Lanice appeared. She was holding a small handbag. She walked to the table, gently took out a snow-white envelope from her handbag, and placed it lightly on the coffee table.

"The invitation you requested has arrived from the train." Lanis leaned forward slightly, her voice gentle and clear, "I'm here to give it to you."

"Ah, thank you so much. I'm glad you came all the way here to deliver it." Xing Qing raised his hand, looked at her gently, bent slightly, and walked to the coffee table. He skillfully picked up the teapot and tea leaves, and gently poured the tea leaves into the teapot. The aroma instantly emanated after the hot water poured in.

After sitting down, Lanis leaned back slightly on the sofa, stretching her tense shoulders. The long hours of work had left her feeling a little tired. She placed her hands on her knees, a gentle smile on her face, and quietly watched Xing Qing brew tea.

"No, no, no, I just took this opportunity to finally come out and get some fresh air." She said softly, a hint of fatigue in her words.

After Xing Qingjiu finished pouring the tea, he gently placed the pot back on the coffee table. He took the empty cup she offered him and slowly poured in the tea. The steaming aroma of the tea filled the air. Lanis picked up the cup and took a gentle sip. Perhaps Xing Qingjiu had used magic to adjust the temperature, the tea was just right. The warmth quickly spread throughout her body, seemingly relaxing her a little, and the fatigue in her eyes dissipated slightly.

"My elder brother has recently assigned me a lot of matters related to the spirit summoning department's Nirvana masters. Although I am only responsible for dividing them up and handing them over to others, the workload has increased a lot recently..." She put down the teacup, frowned slightly, and her expression was a little tired and helpless.

"Spirit-summoning science?" Xing Qingfu's eyes lit up slightly, his brows raised, as if he realized something in an instant. He rubbed his chin lightly, and his gaze unconsciously fell on the distant window.

——I see. Many of the new students in the classroom recently are from the Spiritual Department. No wonder, it would be troublesome if they joined the classroom from another department. But if it is related to Kenneth, then it is not surprising at all.

"Well, it seems my brother is leveraging Lord Ulysses' connections and his status as a First-Class Instructor to gradually take over the affairs of the Spiritual Admonition Department." Lanis spoke calmly, but the weariness in her eyes and the faint wry smile couldn't hide her helplessness. She lowered her head and took a sip of tea. The fragrance warmed her lips and gently spread throughout her heart.

"On the surface, he doesn't care about the Clock Tower or the Demonic Path at all." Xing Qingfeng chuckled, his tone rising slightly. "Is that so? Does it make things easier for me?"

"No, it's simply because my elder brother is completely hands-off." She sighed, "So he doesn't have to worry about the specifics. He only needs to control the overall direction and key matters."

"By the way, where's Morfagia?" Lanis narrowed her eyes slightly. "Why can't I see her?"

"She's taking a nap at home." Xing Qingqi curled his lips. "She eats and sleeps all day long. When she wants to go to class, she just picks a random classroom. Last time, she ran to Weber's classroom and scared Gray."

"Won't she be wearing a mask when she meets Grey?" asked Lanise.

"It seems like I took off my mask on purpose in front of Grey," Xing Qingfeng sighed. "When asked about it later, she told me she was curious about Grey's reaction. Sigh."

Speaking of Mo Fajia, Xing Qingqiu obviously didn't want to delve into other things. He looked down at the envelope on the table, gently pinched its edge with his fingers, picked it up and read it.

"By the way, when was this invitation sent out?" He played with the envelope, applying a little pressure with his fingertips. "Is it time-sensitive?"

"There's no time limit. However, there are some requirements for boarding the Demon Eye Train." She recalled the route with a hint of concentration, tilting her head slightly, her eyes scanning the warm sunlight outside the window. "Currently, it's probably traveling along a spiritual vein near Eastern Europe."

"Really..." Xing Qingwu nodded, muttered to himself, and quickly calculated the journey, "If I go there now, it will take some time. If I go there alone, the whole process should be compressed into about a week." His eyes swept over the teacup, and his fingers shook lightly unconsciously, causing ripples on the surface of the tea.

"The current teaching schedule consists of basic practice classes, so Weber should be able to substitute for a week," he continued, "but the schedule is still a bit tight."

"So, I suggest you consider this when you have time." Lanis said gently. Her tone was completely different from the arrogance she had used when facing Weber in the past, and she seemed much more relaxed.

——Or rather, she seemed to only reveal this side of herself to Waver.

"After all, the Magic Eye Train itself is a pretty good vacation trip," she continued. "If we rush there and back, wouldn't that be a waste of time?"

"But it's best to address your eye problem as soon as possible." Xing Qingqiu lowered his head and took a sip of tea, his tone suddenly becoming serious. "Eyes are such a delicate organ, especially the Demonic Eye. If we don't prepare research materials in advance, neither Kenneth nor I can be completely confident."

"My elder brother did suggest using a gemstone prosthetic eye as a temporary replacement," Lanis replied softly, "but I ultimately refused. I really prefer my original eye—"

"——We've been living like this for the past ten years. Waiting a few more months is no problem at all. Mr. Xing, please focus on your own affairs first."

"Is that so..." Xing Qingyu nodded gently, his brows slightly furrowed, a trace of thought flashing in his eyes. He gently stroked the teacup in his hand and lowered his head slightly, as if pondering something.

Just as Xing Qingyu was about to continue speaking, Lanise suddenly broke the moment of peace and her voice floated gently into his ears.

"If Morfagia wakes up, can you let her come and play with me?" Lanis took a sip of tea, then put down the cup and stood up, her eyes gleaming with anticipation. "Weber has to go out on business this afternoon, and Gray has to follow—"

She paused, a mischievous smile playing on her lips. "—I finally have a day off, but it would be too boring to spend it alone."

"Okay, I'll tell her when she wakes up." Xing Qingyu nodded slightly and replied.

Lanis bowed slightly and turned around gently, "Well, Mr. Xing, I'll take my leave first."

She left the office, and Xing Qingqi watched her retreating figure until the door gently closed, leaving the room in silence. He sat back at his desk, where neatly arranged piles of documents lay: a thick stack of lesson plans, notes, test papers, and the slightly yellowed course schedule, seemingly waiting for his scrutiny and organization.

He picked up the already cooling teacup and gently drank the last sip of the warm tea. He gently put the cup down, crossed his hands on the table, and glanced at the piles of documents, his mind quickly calculating the next teaching plan.

The sunlight outside the window was still bright, but it had gradually changed from the warm morning to the bright afternoon. Through the office window, the sun slanted onto the floor. The entire office was silent except for the occasional sound of pens scratching across paper.

He glanced down at the test paper on his desk, his brow raised slightly. He kept a list of the pre-class quizzes so he could easily track his students' progress. He pulled a pen from a drawer and casually marked the paper, a thoughtful smile playing on his lips. It seemed he was pleased with the students' progress.

"Next week, with the basic consolidation exercises and exams..." Xing Qingqiu murmured softly, his eyes jumping across the test paper, "It should be more than enough." He nodded, his fingertips lightly running across the questions on the test paper.

Next week's teaching schedule has been basically arranged. A few simple review classes, plus an exam, won't be too difficult and the students will be able to digest it. As long as they can focus on practicing during this period, he is not worried about their grades.

"Then let Weber teach the magic course first. Lend him two classes. It should be ready next week..." Xing Qingqiu muttered to himself, gently moving the tip of his pen, and began to adjust the course schedule.

Xing Qingqiu frowned slightly and glanced again at the neatly arranged schedule, his fingers constantly tracing over it. His thoughts became increasingly detailed.

"Hmm... should we give them a holiday?" Xing Qingyu paused, a flicker of hesitation in his eyes, then a smile played at the corner of his mouth, as if he had found the answer. He put down his pen and began to tap his fingers lightly on the table, his eyes slightly blank.

The students were under constant pressure to learn, especially those new to his system. As the difficulty of the courses gradually increased, they often needed some time to digest and absorb the knowledge. Although his class schedule wasn't particularly tight, he still felt that giving the students a break would be a good thing.

"Weber has a lot of things on his own, and if he has too many classes, he'll be under a lot of pressure," Xing Qingfeng murmured softly. "Judging from Kenneth's recent actions, I guess he'll have even more things to do in the next few days..."

"If these two classes are off, then the end-of-semester teaching tasks..." Xing Qingqiu muttered to himself, his eyes turning back to the packed schedule. Despite this, he quickly came to a conclusion. "Hmm..." He sighed softly, "Perhaps the end-of-semester course schedule can be adjusted a bit—"

"—At worst, we can postpone the self-defense class for another two weeks."

Xing Qingqi looked at the class schedule in front of him with satisfaction and nodded. Just as he was about to notify everyone about these matters - he didn't even plan to discuss it with Weber - there was another knock on the office door.

Ling Meng's face darkened.

Xing Qingwu was already very familiar with this rapid rhythm of knocking on the door——

——That was Flatt's movement.

"Come in." Almost as soon as his voice fell, the door was pushed open, and Flatt rushed in with an excited look on his face, his mouth wide open, as if he couldn't wait to announce some important news.

"Order Xing! I've discovered a big secret!" Flatt strode in, waving his arms as if ready to announce a historic discovery. His eyes sparkled, as if he was filled with complete confidence in what he had just "realized." "I've been studying the math you teach lately, but I always feel like I can vaguely guess a lot of the answers," he paused, as if that wasn't surprising enough, and continued impatiently, "Then I looked up some information—"

"--I think I'm a genius in math too!" Flatt's voice became excited and high-pitched. "Just like those celebrities in the past, do I have this talent too?"

Xing Qingyu felt the vein on his forehead twitch. Faced with Flatt's eagerness, he forcibly suppressed the urge to slap Flatt on the head.

"I..." Xing Qingyu was about to speak, but his voice stopped abruptly. Looking at Flatt's excited expression, Xing Qingyu suddenly thought of something.

Although Flatt was somewhat boastful, his perception of magic fields and understanding of the fundamentals of magic were almost intuitive, a skill even Xing Qingjiu sometimes struggled to describe clearly. This feeling was beyond the reach of ordinary people. Perhaps Flatt truly possessed an innate talent in some way.

In the art of magic, Flat is undoubtedly an absolute genius.

He sighed softly, rubbed his chin with his hand, and a trace of thought flashed in his eyes. If Flatt truly felt that he had a "talent" in mathematics, perhaps it was his highly intuitive way of thinking that led to his hunches about problems. Although these hunches were not entirely correct, from some perspectives, they were indeed a unique "talent."

"Let me think about it. I'll find some questions to test you later." After thinking for a moment, Xing Qingqiu motioned Flatt to sit back on the sofa, and he began to rummage through the pile of test papers.

"Oh, I will definitely prove to Order Xing that I am a genius!" Flatt said happily.

--------------

Although the Magic Eye Train is mentioned here, as mentioned in the paragraph, this plot will be postponed a little.

Next, I will create a small section of daily life and a small advancement in the plot, probably concentrated in the week that Xing has freed up.

The above is a new book by a new author. Please vote and give me feedback. Thank you!

Volume 51: Xing Qingfeng's Perfect Math Classroom: . Multi-Order Magic Squares and the Four-Color Problem

"OK, Flatt, come here." Xing Qingqi's voice was low and magnetic, breaking the silent atmosphere in the office.

The sunlight from outside the window shone through the gaps in the curtains and onto the table, making it seem particularly warm. Xing Qingqiu sat at his large desk, quietly writing and drawing on a stack of white paper.

The paper rustled slightly as Xing Qingqiu quickly drew lines of numbers and graphs on the paper with a pencil, occasionally marking some symbols on the table.

Flatt stood aside, craning his neck to watch Xing Qingjiu's movements. As Xing Qingjiu called out, he immediately jumped up from the sofa and walked quickly to Xing Qingjiu's table. His face was filled with excitement and curiosity, his eyes shining as he stared at the stack of papers.

"Order Xing, can these prove whether I am a genius?" he asked excitedly.

"Not necessarily. Just go through these first," Xing Qingqi replied casually. "Fill in the numbers one to sixteen." He gently handed the paper to Flatt. "The requirement is to make the sum of the rows, columns, and both diagonals equal. Do you understand?"