For Fang Zheng, after nearly a semester of school life, he has already gotten used to the work of the Student Union.

However, when he walked into the student union room, Fang Zheng was still a little surprised to see Nakajo Azusa's gloomy expression as he stared at the terminal screen in front of him.

"It's so rare to see you like this, what happened?"

"Ah, Kasugano-san!"

Hearing Fang Zheng's question, Nakajo Azusa hurriedly raised his head, greeted him, and then lowered his head again. Nanakusa Mayumi beside him gave a helpless bitter smile.

"Actually, A-Zi is worried about homework right now."

"Homework? This is really rare."

Fang Zheng raised his eyebrows slightly and sat on the chair. Although Nakajo Azusa was timid, she was a serious and smart student. Even for Fang Zheng, it was the first time he saw her doing homework during lunch break... This was just like the study committee member not completing his homework, which was a very rare and strange thing.

"So, what is your assignment, Nakajo-senpai?"

"Actually..."

Hearing Fang Zheng's question, Nakajo Azusa couldn't help but speak with a sad face.

"It's about... the report on 'Three major technical problems of weighted magic'..."

Hearing this, not only Nanakusa Mayumi, but also Watanabe Mari, Ichihara Suzune and Shiba Miyuki turned their eyes to Nakajo Azusa, scaring her.

“Tsk tsk tsk…”

The short-haired discipline committee chairperson stared at Nakajo Azusa with interest and sighed.

"I was wondering why Nakajo, who always ranks in the top five, is so troubled. So this is the reason."

"But isn't this a fixed theme that comes out every year?"

Mayumi Nanakusa seemed a little confused.

"What is the topic of this essay?"

"The assignment is to write an essay on the obstacles you will face when solving the 'three major problems'. The other two are easy to explain, but I can't explain why universal flying magic cannot be successfully developed..."

Nakajo Azusa looked frustrated, and Ichihara Suzune seemed to understand why she was so distressed.

"In theory, I can use acceleration and weighting magic to cancel the influence of gravity and fly into the sky, but why can't I fly..."

"But the answers should be in the advanced reference books."

Nanakusa Mayumi still looked confused.

"The magic formula must record the end conditions, and the effect of changing the image will last until the end conditions are met. When using magic to fly, every time you adjust the altitude or speed, you must not only use new magic to overwrite the magic being activated, but also use a more powerful image interference force. A magician can adjust the image interference force to a maximum of ten stages. As long as the flight status is changed ten times, the limit of magic overwriting has been reached - isn't this the reason why it is generally recognized that flying magic has not been put into practical use?"

"But according to this statement, the problem is that the magic currently being cast must be overwritten with the new magic, so wouldn't it be better to cancel the magic currently being cast and then cast the new magic?"

Nakajo Azusa seemed to have her own ideas about this, but soon Ichihara Suzune poured a bucket of cold water on her head.

"Unfortunately, magic formulas cannot work on magic formulas. Magic formulas can only rewrite individual intelligence. If two magic formulas are used on the same intelligence entity, only the one with stronger interference power can rewrite the intelligence entity."

“I see…”

Hearing this, Nakajo Azusa seemed a little depressed, but at this moment, Fang Zheng coughed.

"Okay, Nakajo-senpai, if that's the case, then you don't have to do this homework for now."

"Huh? Why?"

Facing Fang Zheng's question, Nakajo Azusa looked up at Fang Zheng in confusion, and the latter shrugged his shoulders.

"Because our 'Far East Magic Research Society' completed the research on the generalization of flying magic a few days ago, I came here today to invite you to experience it in person."

“…Huh? Hey hey hey!!!”

Hearing this, Nakajo Azusa jumped up from his chair, and the others looked at Fang Zheng in amazement.

"Is this true, Kasugano-san?"

"You are not kidding us."

"Take us to see it now!!"

Before Fang Zheng could answer, Nakajo Azusa rushed to Fang Zheng, grabbed his hand and pulled him out. Fang Zheng shrugged at the others and was then pulled out of the student union room. The others couldn't hold back their doubts and hurriedly followed Fang Zheng out.

The most active person along the way was Nakajo Azusa, who usually made Fang Zheng feel like a small dog, always following behind others, but now she was like a Husky going out for a walk, eager to run to the destination immediately. Speaking of which, Ichihara Suzune seemed to have said that Nakajo Azusa was a magic technology geek... Well, geeks in any field look the same.

Soon, the group arrived at the community activity center which was converted from a warehouse.

"Kasugano-kun, where are you?"

While grabbing Fang Zheng's hand and waving it vigorously, Nakajo Azusa looked around impatiently and asked. Fang Zheng glanced around and found that the four people who were supposed to be here were nowhere to be seen.

Needless to say, he knew where the four girls had gone.

"Wait a moment."

Fang Zheng silently took out his cell phone and called Chiba Erica.

"Hey, Kasugano? What's up?"

"All of you, get down here! Haven't you had enough fun yet?"

"Eh? How can this be fun...Okay, everyone, let's go back!"

"call--"

After a moment, four black shadows flashed across the sky and appeared in front of Mayumi Nanakusa and others.

Chiba Erica, Shibata Mizuki, Kitayama Shizuku and Mitsui Honoka were seen wearing sportswear and standing on skateboards. They were gliding through the air as lightly as butterflies and falling to the ground.

“Waaaaaaaaah!! It’s flying. It’s really flying!!”

Seeing this scene, Nakajo Azusa screamed, and even Nanakusa Mayumi, Ichihara Suzune, and Watanabe Mari stared at the scene in disbelief with their eyes wide open and mouths open. As they watched, the four of them slowly fell to the ground.

"Is this the flying magic CAD you designed, Kasugano?!"

After the four people landed, Nakajo Azusa rushed over directly, threw herself in front of Chiba Erica's skateboard, and observed it carefully.

"Wow... How did they do that? It's really flying. What kind of technology is used here..."

"I didn't expect it could actually fly..."

At this moment, the other three people also came back to their senses, staring blankly at the scene in front of them, and then looked at Fang Zheng.

"Kasugano-san, how on earth did you do that?"

Unlike the four people who took the test, the members of the student council were all well-informed top students, so when they saw this flying device, their first reaction was "How is this done?"

"It's very simple. To put it bluntly, I just took shortcuts."

Fang Zheng naturally did not hide this. He directly brought everyone to the activity room and explained to them again the concept and principle of the entire flying magic technology as he did before. After listening to Fang Zheng's explanation, it took everyone a while to come back to their senses.

"I didn't expect that the magic would work not on the outside but on the inside. This is really a blind spot..."

Nanakusa Mayumi couldn't help but sigh, while Fang Zheng chuckled.

"In my opinion, the so-called three major magic problems are basically just a dead end for thinkers. We should give full play to our subjective initiative and not ignore the objective tools. Simply put, the ultimate goal is to allow people to fly freely in the sky. As long as this goal is achieved, there is basically no difference whether it is magic-assisted or magic-driven. Next, we just need to see which one is more useful."

"Hey? Wait a minute, Kasugano-kun!"

Just as others were nodding at Fang Zheng's words, Nakajo Azusa suddenly raised his hand.

"According to your design, the magic of the flying device only controls the airflow in and out. Then how do they perform such complex movements in the air?"

“Yes, this is indeed a problem.”

Hearing this, everyone came back to their senses. According to Fang Zheng, the CAD inside the flying device was only equipped with a magic starter to control the in and out of airflow to form thrust. However, this could not explain how Chiba Erica and others could fly so leisurely in the sky and even perform some skills that looked quite gorgeous.

"Oh, I set up an automatic calculation core in it. It will automatically increase or decrease the airflow output according to the user's center of gravity to coordinate with the user's actions."

Fang Zheng seemed very calm about this. It was just like operating a fighter jet or a VF. As long as the operator gave instructions, the aircraft would automatically respond.

“Oh… hey hey hey hey hey!!!”

However, Nakajo Azusa nodded subconsciously, then jumped up again and screamed loudly.

"Automatic calculation? Kasugano-kun, have you even made the automatic calculation core?"

"Yeah, I just made it at the same time."

"By the way..."

Hearing this, Nanakusa Mayumi couldn't help but reach out and press her forehead.

"I feel dizzy..."

"Me too……"

The reactions of the others were similar. You know, magic has been developed for decades, but up to now, the development of magical records has reached its limit. The most famous person now is Thoras Silver, who invented the "loop calculation system". The "loop calculation" system he invented increased the startup speed of specialized CAD by 20% and reduced the misjudgment rate of non-contact interfaces to 1%.

But it is just a tool after all. In the past, magicians needed to cast spells one by one, but the loop calculation system can help them release magic in a cycle. Simply put, it is like turning a semi-automatic rifle into a fully automatic one.

However, Founder's automatic calculation core is a completely different concept...

Through sensing, it can automatically adjust the magic output and angle... Although it is only used on flying magic devices, it is already amazing enough.

This invention alone is enough to make Fang Zheng's name famous in the history of magic.

However, he himself said that this was done "by the way"...

"So, what are your plans next, Kasugano-san?"

Staring at Fang Zheng, Nanakusa Mayumi asked.

Whether it is the universal flying magic or the automatic calculation core, they are enough to change and shock the entire magic world. Since Fang Zheng took them out, he must have some ulterior motive.

"Of course, I have reached a cooperation agreement with Beishan."

Fang Zheng glanced at Kitayama Shizuku who was sitting not far away. The latter proudly made a V sign. Kitayama Shizuku's father, Kitayama Chao, was an industrialist with considerable background and wealth. Fang Zheng also contacted Kitayama Chao through Kitayama Shizuku. After learning about the generalization of flying magic and the advent of the automatic calculation core, Kitayama Chao personally rushed to the first high school to experience flying in the air. Then he signed an agreement with Fang Zheng on the spot.

"The next thing we have to do is to disclose it at an appropriate occasion, and fortunately, we will soon have a very suitable opportunity."

As Fang Zheng spoke, he tapped the calendar next to him. When everyone saw the date he pointed to, they were stunned. At the same time, Nanakusa Mayumi's eyes suddenly lit up.

"...Nine Schools Battle!"