Temperature Control in Academy City

"You guy, whatever you want." Senior Misaka finally lost her temper, sat down on her bed, picked up the huge portion of shaved ice and started eating, looking a little depressed.

"Natsume, I misunderstood you. If you run into any trouble in the future, feel free to come to Branch 177 and ask me for help." Shirai Kuroko was holding a huge portion of shaved ice with an excited look on her face. She ate the shaved ice in big mouthfuls and said something about taking on so much responsibility.

"Really? Then you'd better solve your current troubles first? Can anyone tell me what's going on outside?"

Shirai-san's words of taking on so much responsibility were still lingering in her ears, but the sudden appearance of the intellectual female voice was like a magic sound, almost making Natsume Sonoko's hair stand on end. The constant temperature layer lost its effect again, and sweat kept flowing down her cheeks.

"Did you hear any sound?" Student Kuroko Shirai asked with some confusion. She turned around and saw the murderous dorm supervisor, who turned into a stone statue in an instant.

“Can anyone explain to me why the door of your dormitory was left in the corridor? What happened to the door of your dormitory?” The warden raised his black-framed glasses slightly with one hand and revealed the smile of a top carnivore.

"Door supervisor." Several girls showed expressions of extreme fear, especially senior Misaka Mikoto. The expression on her face was richer than that of Natsume Sonoko and Shirai Kuroko combined.

Yes, after all, she is a second-year junior high school senior who has a whole year longer than the other two to get to know and become familiar with the dorm supervisor. As expected of senior Misaka Mikoto, she did not resist and made the most correct choice at the first opportunity.

"According to Article 9 of the dormitory regulations, the use of abilities is strictly prohibited in the dormitory. You should not have forgotten this, Misaka." The dormitory supervisor said slowly in a cold and intellectual voice.

"There is a reason why I used my ability just now. Look at this girl, she is my new roommate. I can explain it." Misaka Mikoto showed a difficult smile on her face. She pulled Shirai Kuroko in front of her and ignored Kuroko's desperate look. She hesitantly explained what had just happened.

"Oh, so you thought it was a perverted thief, so he used his ability and demolished the doors of four dormitories at once?" The dormitory supervisor glanced at Misaka Mikoto out of the corner of his eye, and Misaka Mikoto nodded with some difficulty.

"The purpose of making dormitory rules is not to allow people to find excuses to avoid punishment, otherwise there would be no need to make dormitory rules. Violators of the rules must be punished. Don't you agree, Misaka-san, Shirai-san, and Natsume-san who is pretending to faint in the back?" The dormitory supervisor looked at the trembling trio in front of him with eyes like a wild beast.

"Yes." With a hint of tears in her voice, Senior Misaka agreed reluctantly.

"The punishment for those who didn't hear it will be doubled."

"Yes." Two neat answers rang out in the corridor at the same time.

Even though the process was full of twists and turns, Shirai Kuroko still successfully moved into dormitory 208. However, the result of the punishment also came out. Although her scholarship was not deducted, she was punished to clean the school playground and clear the weeds and garbage there.

Natsume's goal of becoming a big lady also suffered a huge setback in the first week of school, as she violated the dormitory rules in a daze.

Natsume Sonoko stood blankly under the scorching sun, as if thinking about something.

Senior Misaka standing by seemed to be in a bad mood, sitting on the grass with her head in her hands.

Even on hot days, one can still feel the coolness of autumn, especially when Natsume uses the principle of thermal expansion and contraction to artificially create a low-pressure area, creating a cool breeze that almost everyone can't stop.

This is a perfect temperature for a nap.

However, Shirai didn't show any sign of sleepiness. Instead, he was pulling weeds in the corner of the playground, carefully and seriously, with many weeds piled up around him.

As expected, Shirai-san who has entered the fanatical fan mode is different from the usual Shirai-san, Natsume Sonoko thought secretly.

Chapter 7: Natsume Sonoko's New Move

"According to the principle of thermal expansion and contraction, when air is heated, its volume expands and its density decreases; when it is cooled, its volume shrinks and its density increases."

"When the air density decreases, it rises to form a low-pressure area, and when the density increases, it forms a high-pressure area. Due to the pressure difference, the air in the high-pressure area will move to the low-pressure area, which can form natural wind."

Senior Misaka was sitting on the grass in the playground, still looking a little gloomy. She secretly glanced at Shirai who was pulling weeds seriously, and patiently taught some simple knowledge to Natsume Sonoko who had just entered the first year of junior high school.

"Oh, I know."

Natsume Sonoko looked serious and listened attentively to Misaka-senpai's instructions.

Although she didn't take any notes, Natsume Sonoko said that this knowledge was actually not difficult at all, even though she had just entered junior high school.

Natsume Sonoko had known about thermal expansion and contraction and air circulation for a long time, but had never thought of using them to develop her abilities. Her main focus was on her old profession of controlling temperature. Controlling the atmosphere should be the development direction of aerodynamics.

After all, you have to learn to walk before you can learn to run, right? Natsume Sonoko secretly excused herself.

As expected of Misaka-senpai, who can develop a certain electromagnetic cannon with her fragile hands, not only does she have superb calculation ability, but she also has a wealth of knowledge.

As for the development of her own temperature control ability, Natsume Sonoko had made some ideas before, but she had never thought about it in depth.

Natsume briefly recalled some of the principles and knowledge mentioned by Misaka-senpai, and her brain began to work faster. Sparks of computing power flew in the girl's head, and the personal reality that belonged only to Natsume Sonoko was fully released.

After a while, the normal temperature around suddenly became abnormal.

Extreme cold and extreme heat exist alternately, and the air around begins to flow in a regular pattern.

Seeing that the strong wind caused by the pressure difference blew away the sweat on Shirai's face not far away, and there were no major mistakes, Natsume Sonoko immediately smiled.

Can I work as an aeronaut part-time now?

It seems that many level 5s can do part-time jobs, and I do have this talent! !

Thinking of this, Natsume, who has a divergent mind, immediately used his ability to draw inferences from one example.

High and low temperatures alternated near Natsume Sonoko's palms, and she constantly used her ability to change the air pressure near her palms. The difficulty was similar to that of creating Ice Guatai not long ago.

Not long after, a miniature cyclone gradually formed in Natsume's hand. When he relaxed a little, the cyclone dissipated, and immediately a miniature air wave appeared and spread out in all directions.

After trying several times, a small cyclone finally appeared steadily in Natsume Sonoko's hand.

Natsume Sonoko blinked her eyes, seemingly full of curiosity as if she had discovered a new toy.

"Compared to purely controlling the temperature, influencing the air pressure through temperature changes consumes much less energy. As long as the temperature is maintained for a short period of time, the power of the pressure difference can be used to achieve wonderful effects." Natsume Sonoko tilted her head and thought to herself with a happy look on her face.

Wind, obey my call!

Based on the temperature range that I can control at this stage, as long as my calculation speed is fast enough, I can form a small whirlwind by constantly changing the air pressure nearby.

Under this premise, Natsume Sonoko can of course freely control the direction of the tornado.

However, if you want to form a large-scale whirlwind or even a tornado, the general operations required are no different from forming a cyclone in your hands.

However, the computing power required is thousands of times different, which may burn out Natsume Sonoko's brain in an instant.

"Natsume-san is really smart." Senior Misaka suddenly felt a little emotional. She just gave a little advice, but she didn't expect that Natsume-san was so smart and could draw inferences so quickly.

"No, actually I don't have very good control. I'm just trying to change the temperature several times in succession." Being praised by Misaka-senpai, Natsume Sonoko immediately showed an embarrassed smile on her face.

By the way, Misaka-senpai is a really nice person.

She just casually said that she was a little worried about the regular test next week, and hoped that she could be promoted to a level 4 powerful ability user recognized by Academy City, and Senior Misaka began to give her advice in a serious manner.

"Sister, Natsume's computing ability must be at level 4. It will be fine as long as he meets the test requirements." Kuroko Shirai stopped what she was doing and put the weeds on the haystack that had already piled up into a small hill.

Shirai-san subconsciously rubbed her sore shoulders, then walked towards her elder sister and the others who were not far away.

"Comprehensive and regular testing is what we often call physical testing. It is an inspection activity that systematizes abilities and makes simple judgments according to established standards."

"Each school will take into account various aspects such as the accuracy, intensity, speed, distance and duration of the students' ability release. As the level increases, the scope of application becomes wider, so the evaluation items become correspondingly more complicated and multifaceted." Shirai Kuroko said slowly, casually smoothing her skirt, her eyes inevitably falling on the empty seat next to Misaka-senpai.

Seeing that Misaka-senpai had no intention of refusing, Shirai Kuroko happily sat down, and a happy smile immediately appeared on her face. However, it was rare that she didn't smile strangely, but sat quite obediently beside Misaka-senpai.

Natsume Sonoko didn't think that Shirai had changed his personality. Instead, she thought with some suspicion that he might have changed his strategy.

"Different abilities have different assessment methods, but as far as I know, all abilities are generally divided into two categories. The first category is extrasensory perception, and the second category is telekinesis. Extrasensory perception is divided into many different sections in physical examinations, while telekinesis is only divided into one section."

Shirai Kuroko stretched out a finger and saw that Misaka-senpai was also listening attentively, and a proud smile appeared on the girl's lips.

"For example, my spatial movement, Natsume-san's temperature control, and onee-sama's electric shocks all fall into the category of telekinesis. Although they are all in the same general category, they all have different emphases in the detection methods."

"As for my spatial movement, it is determined to include three factors, namely the size (mass) of the object being moved, the distance, and the accuracy."

"If Natsume-san wants to advance to level 4, the easiest way is to work on several evaluation factors of temperature control, namely the limit of temperature change, the range of change, and the accuracy of the change. As for the idea proposed by onee-sama, it can only be regarded as an application of ability at most, and cannot be calculated into the results of the physical examination."

Shirai-san stroked his chin and thought for a while, then carefully helped Natsume-san analyze the information.

Senior Misaka's face turned slightly red. She hugged her knees with her hands and smiled awkwardly.

"But if the air pressure difference can be developed into a super-electromagnetic cannon similar to onee-sama's, then maybe the school will develop a special evaluation standard just for Natsume. As far as I know, every level 5 psychic will have a dedicated research team." Shirai added.

"By the way, comprehensive periodic check-up is such an old-fashioned term. You need to start changing your elementary school habits, Natsume-san." Shirai Kuroko said, holding her forehead, as if she rarely heard such an old-fashioned term.

Natsume Sonoko's face turned a little red. This was indeed a habit she brought from elementary school, although there was no difference between the two.

The sun gradually descended from the center, and time passed by little by little.

The hot weather did not dampen people's enthusiasm for work.

In the playground, three figures were bending over to clear the weeds. The students from Tokiwadai Middle School who were passing by were looking at these three hard-working figures with some curiosity.

I don't know when, Misaka-senpai and Natsume Sonoko joined the weeding team, and the relationship between the few people unknowingly became closer.

Senior Misaka was bending over to pull out weeds, and beside her was classmate Shirai who was working even harder. Natsume Sonoko was at the end of the team and looked a little out of breath, although she was only responsible for putting the weeds into the garbage bag.

"it is finally over."

After picking up the last few weeds in her sight with trembling hands, Natsume Sonoko couldn't help but sit down on the playground, almost falling apart.

Misaka-senpai was in a much better state, and she even ran to the school's vending machine to buy three bottles of drinks, which Shirai-senpai immediately took with great joy.

"Strawberry soda?" Natsume Sonoko picked up the drink bought by Misaka-senpai, only to find that it was a rare strawberry-flavored soda.

"Onee-sama, Natsume-san, I still have a patrol mission with the discipline committee, so I'll be leaving first." After Shirai Kuroko gulped down a bottle of soda, she looked at Misaka-senpai reluctantly before speaking.

As soon as he finished speaking, Shirai disappeared without a trace. His spatial movement was truly enviable.

"This guy is so busy." Senior Misaka took a sip of her drink and muttered while lying on the grass.

"Natsume-san, I have a question I've always wanted to ask you. Don't you have to participate in club activities?" Senior Misaka turned her head and looked curiously at Natsume Sonoko who was also lying comfortably on the grass to rest.

"Don't worry, Misaka-senpai. I'm from the Urban Legend Investigation Club. We don't have a so-called activity room. Lying here can actually be considered as investigating urban legends." Natsume Sonoko opened one eye and looked at Misaka-senpai, not knowing what was going on in her head.

[When the wind turbine blades rotate in the opposite direction, strange things will happen on the street.] The personification of this urban legend, Misaka Mikoto, instantly revealed a look of surprise, as if she was lamenting that there was such a club in Tokiwadai Junior High School that left its members alone.

"That's a really special club." Senior Misaka said with emotion.

"It's really special." Natsume Sonoko, who thought she was investigating an urban legend in some sense, nodded seriously and said with approval.

Chapter 8: Get up early, Natsume-san

The night faded away, and the morning sun shone on the seventh district student dormitory of Tokiwadai Junior High School.

In a dormitory 210, the sound of alarm clocks rang out one after another, as if a thousand chattering dormitory supervisors were talking, leaving no time for people to rest.

But there is nothing we can do, after all, it was not someone else who set the alarm time.

As if awakened by the noisy noise, a yawning figure slowly climbed up from the sofa and looked helplessly at the alarm clock not far away.

A thin layer of frost suddenly appeared on the apple-shaped alarm clock, and then the noisy sound gradually became smaller until no sound could be made anymore.

The small copper bell on the alarm clock had been frozen to the striker, but the other parts of the alarm clock were still functioning normally, and it could be seen from the alarm clock that the time was almost 7:10.

With a burst of weak complaints, Natsume buried his head back on the sofa, hugged the big bear beside him and continued to sleep.

I'm so sleepy, why does it have to be dawn? --Natsume-san's complaint.

I moved my eyes away from Natsume-san. At this moment, in dormitory 210, there were two beds neatly placed in the middle. However, there were no quilts or bedding, nor pillows, which was rare. There were only two clean white Simmons mattresses of an unknown brand.

In any dormitory hygiene inspection, Natsume always won the award for the cleanest bed because there was almost nothing on her bed.

Since developing the ability to control temperature, and realizing that a constant temperature layer is attached to the body all year round (the brain is still working after sleeping), beds are no longer a necessity for Natsume.

As long as the place is clean, Natsume said he can sleep comfortably.

Instead, the space under the bed was filled with all of her treasures.

Ignore the mess under the bed.

From the corridor outside the dormitory, there were sounds of people walking and playing in groups of three or four, the sound of people hurriedly running back to the dormitory to get things, and the sound of too many things in their hands falling to the ground. Occasionally, there might be some ambiguous voices like "Sister, you bastard".

It's so annoying. Natsume, who was woken up again, is still lying there in a coma. His mind is in a mess and he doesn't want to think about anything. The only thing he wants to complain about is the extremely strict schedule of Tokiwadai Middle School.

起床7：00--7：30；早饭7：30--8：00；

The first class at Tokiwadai Junior High School starts at 8:30, leaving enough time for students to rush to school from the student dormitory.

Natsume Sonoko seemed a little uncomfortable with the daily routine she started in junior high school. After all, Natsume Sonoko had only attended an ordinary elementary school before, which did not have such strict rules as those at Tokiwadai Junior High School.

I usually sleep until twenty minutes before class starts, then I slowly tidy up my appearance and arrive at the classroom ten minutes early.

Natsume Sonoko has encountered some troubles since she started attending Tokiwadai for a few days. She needs to adapt to junior high school life while preparing for a physical examination.

The whole person was in a state of lack of sleep, and even had two panda eyes on his face.

The passage of time cannot be disturbed by human will at all. Natsume, who is extremely eager to stop time, has to make a difficult decision.

He opened his eyes dazedly, got down from the sofa like a puppet, found Tokiwadai's school uniform from the box under the bed and put it on.

Natsume Sonoko changed out of her pajamas into a beige V-neck knitted sweater, a white short-sleeved shirt, and a gray pleated skirt, then skillfully put on her school uniform.

Tokiwadai's school uniforms are all tailor-made. Natsume did not feel uncomfortable at all. On the contrary, he looked much more energetic after putting on the school uniform. Of course, it is best to ignore the pair of sleepy panda eyes.

Natsume Sonoko subconsciously glanced at the time on the alarm clock. Now the frozen copper bell on the alarm clock had thawed, and the time was almost seven twenty-five or seven twenty-six.

"Fortunately, it's not too late." Natsume Sonoko's expression relaxed. It was much better than getting up at 7:29 one day and almost being caught by the dorm supervisor.