Temperature Control in Academy City

Chapter 221 A Simple Way

The chassis of the cleaning robot was spinning frantically, and the universal wheels cooperated with the thin cleaning rag to clean the ground spotlessly after the accumulated water gradually receded.

And just in the interval of cleaning, the small body exerted great strength and slammed into the driver armor that was several times taller than the body.

The driver armor just swayed slightly after being hit, and then he swung the bat in his hand vigorously, knocking the cleaning robot in front of him to the ground with just one hit.

But new cleaning robots were immediately replenished, hitting from multiple angles, restraining the side, and taking advantage of the blind spot of the built-in camera of the driving armor to intercept the driving armor near the gate.

Although these drive armors are remotely controlled, they will operate according to established functional procedures unless manually controlled.

With such a huge number, it is basically impossible to manually control each machine one by one.

Originally, he planned to use the asymmetric tactics of the sea of ​​machines, but he found that the reinforcements of the opponent's driven armor were increasing. Fortunately, he still had the advantage in numbers.

Looking directly at the tense battlefield, Chuchun's face was calmer than his age, like a general planning a strategy.

But he seemed to have thought of the discipline committee members in other positions, and there was a hint of worry and uneasiness in his eyes.

The rain stopped but it was foggy.

The dark clouds in the sky were still there, but they had become much whiter and it was no longer raining.

Hatsuharu's movements suddenly stopped, her eyes unconsciously glanced at a corner not far away, and her cherry-colored lips slightly opened.

The gray fog was like a galloping wild horse, surging and rolling, devouring its prey and swallowing up everything in sight.

In this semi-swampy environment, the fog showed an astonishing aggressiveness, wrapping everyone in it tightly.

"Hey, can you hear me? Pay attention to that super cute vase girl in front."

There was a voice of a guy with a bun on his head beside him, but Hatsuharu looked around and didn't see anyone.

This is because Natsume used the vibration of the air to transmit the sound to Hatsuharu.

"Really? What are you going to say, Natsume-san?"

The vase girl was slightly stunned, and a blush suddenly appeared on her face, and she seemed to have a little more resentful emotion.

"Hatsuharu-san, remember to move the cleaning robots out of the gate. I have thought of a way to deal with these drive armors."

Since someone didn't bring any communication tools such as headphones, the bun-haired girl naturally couldn't hear the little complaints of classmate Hatsuharu, and just continued to use the air to transmit the sound.

"I understand."

I nodded subconsciously and said this without considering whether Natsume-san could hear me.

Hatsuharu looked up at the thick fog spreading over her, and suddenly she understood what Natsume's method was.

It turns out that Natsume was planning to use mist to deal with the drive armor, which was a very smart move.

As expected of the eldest daughter of Tokiwadai.

If Natsume could be a little more diligent, less greedy, and change her hairstyle to something like princess curls, she would be in line with the image of a young lady in his mind.

As a fanatic who yearns to attend an aristocratic girls' school, a certain girl with flowers on her hair couldn't help but think.

Chuchun calmed himself down, trotted back to the gate, and used his handheld computer to control the movements of the cleaning robot.

These cleaning robots had no desire to fight. The moment the fog covered them, they retreated to the gate according to Chuchun's instructions. The gate suddenly became a sea of ​​cleaning robots.

Just as Hatsuharu retreated to the gate, the wings behind a bun-head turned into wind waves and spread out, skillfully landing on the head of one of the cleaning robots.

"Natsume-san, it's great to see you."

Hatsuharu looked at Natsume Sonoko who was safe and sound, and a hint of joy appeared on her face.

"But what about Shirai-san?"

Looking around, the early spring girl became worried again.

She remembered that Natsume seemed to be with Shirai.

"Don't worry, she should be saving people now." Natsume Sonoko said softly.

Standing on the 80-centimeter-tall cleaning robot, Natsume's perspective is very different from usual.

So many times, the girl with a bun likes to stand on the cleaning robot to enjoy the scenery.

The fog stopped about ten meters from the gate, trapping everything inside.

At this time, almost all areas of the Academic Conference venue were covered with a thick fog, except for the five exits where there was some clarity.

In this thick fog, the built-in camera in the driving armor used to identify directions and lock targets suddenly became useless and began to spin around like a headless fly.

"Relax, even if they come out, they will only be a few scattered ones."

Looking at Hatsuharu who was still a little nervous beside her, Natsume Sonoko said in a comforting tone.

Unless an individual's combat capability undergoes a qualitative change, it will not be able to deal with a large number of opponents. Of course, monsters like Accelerator are an exception.

And if the purpose is not to annihilate, but simply to trap the opponent, Natsume seems to have a special talent.

After discovering this, Natsume Sonoko and Shirai immediately changed their thinking.

The two people came up with a seemingly simple but extremely useful method, using fog to paralyze the recognition ability of the driving armor.

Natsume used fog to seal off the venue, while Shirai took advantage of this opportunity to take everyone out of the venue.

Not only the discipline committee members and married seniors, but also the staff in the venue are no exception.

"Fortunately, these driver armors are not equipped with infrared imagers, otherwise the effect would be worse."

Natsume Sonoko muttered quietly. The original driving armor required a driver, but after being changed to remote control, it became very dependent on its own functions.

Unlike ordinary thermal imaging devices, infrared imaging devices can directly observe the infrared rays emitted by objects. Various weather conditions, environments, and even buildings cannot block it. The disadvantage is that the image is too blurry.

Although the machine may not be able to accurately distinguish this blurry image, the person controlling the driving armor far behind may be able to use it to find a way to leave.

Natsume's thermal perception ability is more like a combination of the two. He has the observation ability of an infrared imager that ignores obstacles, and can also clearly distinguish the appearance of people or objects like a thermal vision device.

"Perhaps they think the cameras are sufficient. The fog that shows extremely low visibility like Natsume-san is already out of specification."

Hatsuharu on the side thought for a moment and said.

"In early spring, I suddenly thought of something very important."

With a frown on his face, Natsume suddenly turned around and looked at Hatsuharu's face carefully.

"Did something unexpected happen again?" Hatsuharu was slightly stunned.

"No, can you teach me how to control a cleaning robot with my phone? This is my lifelong request."

Looking at the huge number of cleaning robots gathered at the gate, a look of envy suddenly crossed Natsume's face.

If I could learn Chuchun's method of controlling the cleaning robot, I would be able to take a taxi home anytime and anywhere.

Chapter 222: Six Feathers

"Eh."

A question mark icon popped up on Hatsuharu's head.

As if hearing some ambiguous request, Uiharu blinked her eyes with a strange light, and next to her was Natsume-san with his hands clasped together with a serious look on his face.

Yes, that troublesome girl with a bun had to ask others for help again, even though she clearly didn’t like to trouble others.

“If I can, I really want to learn this technique.”

Natsume unconsciously restrained his expression, and his tone was sincere but not lacking in emotion.

"Actually, I just took advantage of some loopholes in the control system. If Natsume-san wants to know, that's fine."

Uiharu-san said hesitantly.

I'm not worried that Natsume-san will do anything bad to the cleaning robot, I just simply find it a little strange.

After several confirmations, Shirai successfully led the last staff member out of the fog.

Apart from these crazy driving armors, there were basically no people in the venue.

Also due to the blockade of fog, the sporadic drive armors that broke out from time to time did not cause much impact, and the huge number of drive armors inside were controlled.

"Hatsuharu, the security guards haven't arrived yet?"

Shirai-san suddenly appeared next to Hatsuharu-san, and his body was a little wet at this time.

Perhaps it was because he had used space movement too many times, and his whole spirit was a little depressed.

"We've already contacted them. The security guards will send someone to conduct a check."

Hatsuharu replied hastily.

Although the guards are no longer responsible for the security of this academic meeting, and even Teacher Huang Quanchuan and others have been reflecting on this matter behind closed doors, that is all based on the premise that these 'unmanned' drive armors are reliable.

But this time the reason was different. The sponsored power armor attempted to launch an indiscriminate attack on the crowd.

Fortunately, it was stopped by the discipline committee members who passed by, and there were staff members in the venue as witnesses.

Also because the staff had previously requested rain-repelling bullets from the security guards, some security guards had already approached the venue.

"What we have to do now is to seal off the scene before the large group of security guards arrive."

Shirai-san perked up and said in a serious tone.

However, Shirai's gaze slowly turned to another direction, and he saw Natsume standing on the cleaning robot, shouting and controlling the robot's actions with his mobile phone.

"What happened to Natsume-san?"

Shirai-san said with some confusion.

"Nothing, it's just that Natsume-san seems very interested in these robots." Hatsuharu thought for a moment and answered.

The spreading speed of the fog slowed down after it lost someone's control, but it was gradually spreading towards the gate.

Just a few minutes later, when the fog was approaching the gate, a security vehicle stopped in front of the academic meeting place.

The person taking the lead this time was an unknown security guard, because Mr. Huang Quanchuan and the others were still reflecting on their mistakes, and they could not resume their original duties until this incident was settled.

As the security team entered the fog to investigate the situation, they immediately heard the sound of bullets being fired from gun barrels and the friction and collision between metals.

Under the numerical advantage of the drive armor, this fully armed team was quickly defeated.

But not long after, it seemed that a definite signal was received, and soon four unmanned armed helicopters named "Six Feathers" were urgently mobilized above the Academy.

These helicopters are controlled and dispatched by the 23rd District's Air Power Security Management Center, and the security department can apply for transfers.

Natsume has also seen these unmanned helicopters and even had close encounters with them.

The helicopter named "Six Feathers" is specifically responsible for suppressing internal crises in Academy City. It is larger than ordinary helicopters, but it can also carry more ammunition.

There are three weapon launchers with movable joints on each side, which can simultaneously lock and attack targets in six directions. The maximum speed can reach 2.5 times the speed of sound. I heard that the cost of each unit is more than billion yen.

Compared with these helicopters, even the level 5 seems too cheap. Of course, this is only from the perspective of scholarships.

But it also shows from the side that Academy City’s strongest point is actually technology rather than people with special abilities.

The fog can block the sight of the driving armor, but it has little effect on these "six feathers". Not only does it have more advanced recognition capabilities, but it also has something to do with being high above.

The four "Six Feathers" started from different positions, and the wings on both sides could stretch their joints like arms, and began to aim at the targets on the ground from six directions.

The weapon racks on both sides simultaneously spewed out flames, instantly smashing the driving armor in the mist into pieces.

After just a few laps around the venue, which took about five minutes, these 'six feathers' began to return, and no more movement could be heard in the fog.

“I didn’t expect it to be solved so easily.”

Natsume was a little surprised, and seemed to be impressed by the power of technology. Even the robot under his feet seemed a little boring.

Things that I couldn't solve even after working hard on them are now vulnerable to higher-level technology.

The only thing that made Natsume feel relieved was that these "six feathers" had not discovered her in her invisible state before.

However, after many contacts with the ANBU girl named 'Takitsubo Rikou', Natsume had a hunch that there must be similar technology in Academy City that can detect the spread of AIMs.

My stealth ability is not as perfect as I think.

The discipline committee members also began to enter the fog at this time, and what they saw were various drive armors that had been shattered into pieces.

There were some potholes on the ground, which were traces left by bullet shooting. Almost every bullet hit the body of the driver armor accurately.