The Infinite Dimensions Starting from The Irregular at Magic High School

Nothing else.

Sayaka felt as if the one she was fighting was not that mysterious underclassman, but herself!

Whether it was her sword techniques or her stance, even the order in which she struck—it all followed her thinking exactly!

Not a hair off!

And it was even sharper, without the slightest hesitation, sword strikes that pressed forward without turning back!

Until, in the end—

Clack!

Her wooden sword was knocked flying.

And Mahiro's sword was pressed firmly against the area between her shoulder and collarbone.

"...I lost."

Sayaka lowered her head and bit her lip hard.

She admitted her defeat decisively, but inside, she felt terribly disappointed.

She had never expected that she, who trained diligently in kendo every day, would lose to a freshman who had only just enrolled.

At the same time, though, she was extremely curious, so she asked, "...Um, could you tell me why? How were you able to use my sword techniques?"

Yotsuba Mahiro smiled apologetically. "I'm sorry, Senior Mibu. That's just a little cheating trick of mine."

As he spoke, a fleeting arc of light flashed through his pupils.

A permanent perception-type magic—Alpha Stigma.

That was what the Fourth Laboratory called it.

Whether it was magic or physical techniques, as long as the Magic Eye caught sight of it, he could instantly learn it and use it proficiently.

Even the special magical properties of Tatsuya Shiba's Decomposition and Regrowth were no exception.

He could even use it to cast magic without a CAD.

That was how he had learned the Kudou family's secret arts.

This was also the fundamental reason Tatsuya Shiba could not kill him.

So what Mibu Sayaka had just faced was not so much Mahiro as it was herself—a version of herself without the slightest hesitation.

While Mahiro was interacting with a beautiful kendo girl in the kendo club, the Club Management Group headquarters was also discussing him.

"Hey, Jumonji, have you heard about the underclassman Yotsuba Mahiro?"

Student Council President Mayumi Saegusa, seated on the right, looked across at Katsuto Jumonji, who was also from one of the Ten Master Clans.

He was a third-year boy as imposing as a mountain.

He was clearly only 185 centimeters tall, but his burly muscles made him look incredibly powerful, like a giant boulder.

Hearing Mayumi Saegusa's question, Katsuto Jumonji slowly nodded.

"Yes. His average score across the seven subjects, as well as his practical magic exam results, were both just barely on the passing line for a Course 1 student."

However, that was not the main point.

The main point was that he was actually a scion of the Yotsuba family.

Could he have been adopted from a branch family into the Yotsuba main family?

It was not as if that was impossible. Rather, it was common enough; when a child with outstanding talent appeared, it was hardly rare for them to be adopted into the main family for training.

"Saegusa, has the Student Council's recruitment list for this year already been finalized?"

"Jumonji, you mean..."

"Yes. I want him to join the Student Council. This is an obligation as magicians of the Ten Master Clans, and we should support one another as well."

Katsuto Jumonji confirmed Mayumi Saegusa's guess.

"That shouldn't be a problem."

Mayumi Saegusa thought it over.

At present, the Student Council only needed to recruit one member this year, the freshman representative Miyuki Shiba, so there were still vacancies.

And even if the positions were already full, they could establish an unofficial post separately and squeeze Mahiro in.

The only issue was Mahiro's grades...

"Um, may I say a few words?"

Seated in the middle, the third person from the Club Management Group headquarters—a cool-looking, short-haired girl—spoke up, drawing the attention of the two.

"Um, would it be all right if I said a few words?"

"Among the Public Morals Committee positions appointed by the Student Council, there's still one vacancy left by a graduate from last year that hasn't been filled."

The girl in the middle said as much.

"Didn't you say you were still looking for candidates? Mari, the new school year hasn't even been going for a week yet. There's no need to rush this much, is there?"

Mayumi tried, somewhat helplessly, to soothe the other girl's impatience.

Mari Watanabe was her close friend as well as the chairwoman of the Public Morals Committee. Not only did she look a little boyish, her personality was the same.

But Mari ignored Mayumi's attempt to calm her and proposed, "Why not have this Yotsuba underclassman fill the Public Morals Committee spot directly? Unlike the Student Council, we on the Public Morals Committee don't need to look at grades..."

That single remark struck right at the issue Mayumi had been agonizing over most.

A strange light immediately shone in those wine-red eyes, and she abruptly stood up, slapping one hand straight onto the table.

"That's right! Mari, you're a genius! This kills two birds with one stone!"

If he joined the Student Council, they would still have to look at his grades. To be honest, with Yotsuba Mahiro's grades, his joining the Student Council would probably draw criticism.

But the Public Morals Committee was different!

As long as he could complete the daily patrol work, even if he was a Course 2 student, no one would have anything to say!

"Then let's have Yotsuba join the Public Morals Committee."

"Mari, I'll leave Mahiro to you. I'll be in charge of notifying him tomorrow!"

And just like that, the three people in the Club Alliance headquarters decided Yotsuba Mahiro's destination, without even involving his own opinion.

"However, there's one more thing regarding the Yotsuba underclassman."

Mayumi suddenly added, "Although Mahiro is currently using the Yotsuba surname, it seems he was abandoned by the Yotsuba. He was driven out of the house by the Yotsuba family head and left to fend for himself. He doesn't even have a CAD for self-defense."

The moment those words were spoken, Mari Watanabe could not help letting out a cry of astonishment.

Even Katsuto Jumonji's expression on that firm, square face turned serious.

"Saegusa, can you confirm whether this is true?"

Mayumi shook her head and said, "Not at the moment. We only chatted a little this morning, and that's what Mahiro himself said. But the fact that he doesn't have a CAD on him is true."

Although the school explicitly forbade students from using CADs freely on campus, there was no problem with carrying one to school every day. Rather, it was essential.

Because magicians were an extremely important resource to the nation.

They were highly valued both domestically and abroad. In particular, the magician genes of the numbered families were exceptionally precious and were key targets of care for every faction.

So for someone like Yotsuba Mahiro to be walking around outside without a CAD was a very serious matter, whether for the Ten Master Clans or for magicians as a whole.

"Mm. I'll go confirm this matter. Saegusa, you should also go home and verify how true it is. There's also the issue of arranging a CAD for Yotsuba..."

"Um, our Public Morals Committee actually has plenty of retired CADs. We could temporarily lend one to Yotsuba."

Mari Watanabe made that proposal, but Mayumi objected.

"No, Mari. Even if Mahiro becomes a Public Morals Committee member, the committee's CADs still can't be taken out of school." Mayumi lectured her close friend, who was attempting to "line her own pockets," in a chiding tone.

"Let him use mine instead. I have a retired 'general-purpose model' at home. It should be enough for Mahiro to get by for a while."

"Heh~ I didn't expect you to be so nice to this Yotsuba underclassman, Mayumi. You're even willing to give him your own CAD." Mari Watanabe propped her cheek with one hand as she spoke to Mayumi.

"You're making me want to hurry up and meet this Yotsuba underclassman too."

"It's a loan! Hmph, I'm not talking to you anymore, Mari!"

Being teased like this by her close friend, Mayumi's face could not help turning red, as if it were on fire.

It was no wonder.

A CAD was practically a magician's everything. Their magic sequences, usage habits, personal preferences, and tendencies would all be reflected on it.

"...All right, time to head back."

After finishing his sparring session with Senior Mibu in the kendo club, Mahiro prepared to leave school.

But just as he reached the main gate, a large group of people suddenly appeared and blocked his way.

Though calling them a large group was a little exaggerated. There were four of them in total.

Tatsuya Shiba and Miyuki, along with Erika Chiba and Mizuki Shibata, were all people he knew.

How had the four of them ended up together?

"Brother Mahiro!"

When Miyuki spotted Mahiro, she happily called out to him.

Erika and Mizuki, who had also been about to greet him from beside her, were instantly startled when they heard what Miyuki called him.

"Wait, Tatsuya-kun, what did Miyuki just call that person? Brother?!"

The one speaking was naturally Erika. She and Mizuki both looked at the Shiba siblings, hoping for an answer.

Faced with their questions, Miyuki answered on her own, "Of course I mean Brother Mahiro. Is there something wrong with that?"

"Everything's wrong with that, okay?!" Erika retorted loudly.

"Yotsuba-kun is the young master of the Yotsuba family, and you're calling him brother. Doesn't that mean you're connected to the most mysterious Yotsuba family?!"

"Ah..."

When it was put that way, Miyuki couldn't help covering her mouth. She realized she seemed to have said the wrong thing.

However, before she could think of how to explain, Mahiro had already walked over and helped explain.

"Don't get so worked up. Miyuki has nothing to do with the Yotsuba family."

"It's just that she and her brother are my landlords, and I happen to be older than Miyuki, so she calls me brother."

Miyuki was a little dazed when she first heard that, but when Mahiro came over and placed his hand on top of her head, gently stroking it, the intimate gesture made her lower her head shyly and murmur, "Y-yes... that's right."

She hadn't expected Mahiro to make up a lie on the spot just to help her out of the situation.

"Mm, that is indeed the case. He rented the house next door and lives there."

Shiba Tatsuya also backed him up from the side.

That convinced the two girls of the story.