After Crushing the Final Boss, I Got Infinite Mana and Returned to Earth ～With Cheat-Level Power, I’ll Rule Both the Game World and the Real World～ - Chapter 07: The Pervertedly Dressed Headmaster Turned Out to Be My Old Magic Teacher

Chapter 07: The Pervertedly Dressed Headmaster Turned Out to Be My Old Magic Teacher

“T-The Headmaster!?”

“…Headmaster?”

Turns out the wild bikini loli was actually the Headmaster of the Magiluke Kingdom’s Magic Academy.

Guess it really doesn’t pay to judge people by appearances.

Yes, maybe—just maybe—she had a perfectly valid reason for wearing a micro-bikini under her robe… even if it looked like a total pervert getup.

When I glanced back at her, reconsidering my thoughts, the Headmaster was also staring straight at me.

She tilted her head cutely, then spoke to the male teacher beside her.

“Hmm? And why is Prince Georg here?”

“Eh? P-Prince Georg!? But this one came here to take the transfer exam as a commoner—”

“What nonsense are you spouting, Lazar? This is Prince Georg von Magiluke, second prince of the kingdom.”

“…So you knew who I was.”

I figured the king must’ve informed her ahead of time, but no—it seemed she recognized me just by looking.

Which was strange, considering I’d never once appeared in public, and even commoners shouldn’t know my face.

Honestly, it surprised me.

“Mufufu, of course I wouldn’t forget. After all, I was the one who taught little Georg his very first lessons in magic.”

When she said that, the memory finally clicked.

Back when I was a little kid, struggling because I couldn’t use any magic, the king had hired a certain mage to tutor me.

And if I remembered right… that mage was a serious oddball who wore practically nothing under her robe.

She was also the one who discovered that my body had no mana at all—that was why I couldn’t use magic.

“…Big Sister?”

“Oops. You were probably thinking I don’t look like anyone’s big sister, huh? But I’m actually way older than you. I told you that back then too, didn’t I? Did you forget?”

“…No, I remember.”

Until the truth about my lack of mana came out, she had patiently tried to teach me magic anyway.

Honestly, I think part of the reason I came to like magic—and wanted to use it—was thanks to her influence.

That said, there was one problem.

I had completely forgotten her name.

And if I asked her directly, she’d instantly know I’d forgotten.

At that point, there was only one move left.

I’d reintroduce myself properly and hope she’d give her name in return.

“Allow me to greet you once again. I am Georg von Magiluke. I’ll be in your care from here on.”

Sure enough, she must’ve realized I had blanked on her name.

She chuckled softly, then gave a graceful bow—so elegant it was almost impossible to reconcile with that scandalous bikini outfit.

The gap was… honestly overwhelming.

“I am Arshiel Grimoire, disciple of the Sage. Some call me the Rainbow Witch. Allow me to greet you properly, Prince Georg.”

“Pleased to meet you, Professor Grimoire.”

“Ugh, so stiff. Just call me Arshiel, nice and easy. Now then—since I’ll be showing Prince Georg around, Lazar, go fetch the actual transfer-exam candidate, okay?”

“Y-Yes!! At once!!”

“Oh, and one more thing. Since you dared to be rude to the prince, I expect a thousand-sheets reflection essay from you by tomorrow. Fail to deliver, and your salary’s cut by eighty percent.”

“Y-Yes, Headmaster!! …Wait—a thousand sheets by tomorrow!? And eighty percent pay cut if I can’t!?”

Poor Lazar went pale at Arshiel’s harsh punishment.

If I had revealed my identity earlier, he never would have treated me so rudely.

Feeling a little bad, I tried to explain that much to Arshiel, but she just waved it off.

“Don’t worry about it. Lazar does his job properly, and he’s not a bad kid. But his elitist attitude is a bit much, so he needs to be smacked down every now and then.”

“…Fair point.”

She was right.
Lazar had looked down on me because he thought I was a commoner—that was his mistake.
There was no reason for me to pity him, so I decided to just let it go.

“By the way, was that spell just now cast by you, Prince Georg?”

“Yes, that was me. Sorry for the trouble.”

“No, no, it’s fine. Students are supposed to cause trouble for their teachers. …I see, I see, so that spell really was yours…”

Arshiel, walking a few steps ahead, suddenly turned and gave me a delicate smile.

If not for her… questionable outfit, I might have actually felt my heart skip a beat.

Tilting my head, wondering what that was about, I saw her step closer.

She rose up on tiptoe and gently patted my head.

“I don’t know how you gained mana, but I’m so glad. For the past hundred years, my only real regret was that I couldn’t let you—who loved magic so much—actually use it. I’m truly happy. Let me give you a pat, okay?”

“…The reason I grew to love magic, the reason I wanted so badly to use it… was thanks to you, Professor Arshiel.”

“Hearing that makes it all worthwhile as a teacher.”

We continued chatting warmly as Arshiel guided me around the academy.

She showed me the classrooms, the cafeteria, the magical creature pens, and even the library.

“Well then, any questions so far?”

“Yes.”

“Yes, Prince Georg?”

“…Why exactly are you dressed like some kind of exhibitionist?”

“Mufufu, excellent question. This outfit exposes as much skin as possible so I can efficiently absorb the ambient mana in the air.”

Arshiel explained it with a strangely proud tone.

Of course, every mage knew the atmosphere contained traces of mana.

So apparently, her bizarre choice of wearing a micro-bikini under her robe was all for the sake of absorbing that mana more efficiently.

…I could’ve sworn I heard her mutter, “Half of it’s just my hobby though,” but no—there’s no way the kingdom’s top mage would have such pervy tastes. Must’ve been my imagination.

“Any other questions?”

“Yes. Which class will I be placed into?”

She had shown me three different classes during the tour.

First, the Third-Class.

Like Lazar had mentioned, most nobles enrolling already had the basics down.

But since the quality of private tutors varied wildly between barons and dukes, their actual skill levels were all over the place.

Third-Class was where those shaky foundations were broken down and rebuilt—students properly mastered elementary and lower-tier magic, while also refining their mana control from scratch.

Next, the Second-Class.

Unlike the Third-Class, this one focused on learning intermediate spells and applying mana control techniques at a higher level.

Nearly half the academy’s students were in this class, and it was especially popular with those aiming to pursue magic research.

Finally, there was the First-Class.

This class drilled students in advanced magic and combat techniques, and most of its members were aiming to join the knight order in the future.

It required passing a special exam just to get in, and the number of students enrolled was only in the double digits.

Basically, the elite of the elite.

All of the classes sounded interesting, but in truth, I had only just gained my mana and couldn’t handle it properly yet.

By that logic, the beginner-focused Third-Class seemed like the right place for me…

“Oh, I forgot to mention—your class is the one I’m in charge of.”

“Professor Arshiel’s class? Which means…”

“Yup. You’re in the Special Class.”

I froze.

“Sir Lazar told me every student here is aiming for that class. Are you sure it’s okay for me to just… jump straight in?”

“Well, when you’ve already half-destroyed the royal capital with a beginner spell, and on top of that meddled with time itself—something no current magic theory even allows—there’s no way I’d let you settle for anything less.”

“…”

I was at a loss for words.

The night I burned the forbidden book that sealed Diabel and gained infinite mana, it was true—I’d cast a beginner spell and accidentally half-destroyed the capital.

But then I rewound time and erased the damage, so no one should have known about it.

As expected of the academy’s Headmaster, though… she’d seen right through it.

“…Looks like academy life is going to be really fun.”

“That’s the spirit. Now, let’s head straight to my class. There’s only one other student besides you, but he’s a good kid—you’ll get along just fine.”

“I’m looking forward to it.”

Following behind Arshiel, I made my way toward the Special Class classroom.

…Though, I couldn’t shake the nagging feeling I was forgetting something important.

Well, if I’d forgotten it, then it probably wasn’t that important.

◆

Meanwhile…

In another part of the academy, inside the room where familiars were left during exams, one Evil Dragon quietly gazed out the window.

“…I just want to get back and catch the evening educational program. The transfer exam should be over by now… so when exactly is Georg planning to come get me…?”

Georg finally remembered to pick up Diabel—

That evening.

―――――――――――――――――――――

[Afterword]

A Random Tidbit

Arshiel Grimoire

A witch who has lived for three hundred years.

She was a genius who mastered immortality magic at the age of ten, and since then has wandered from place to place, researching magic.

At one point, under the king’s orders, she was tasked with teaching Georg, who couldn’t use magic at all.

Her research into why he couldn’t cast anything eventually revealed the truth—he had no mana whatsoever.

Her teaching policy is: “Reject none who come, let none escape who leave.”

In reality, she’s quietly plotting to make magic accessible to commoners as well. Thanks to her immortality, she’s in no rush.

…Also, she may have just a tiny bit of an exhibitionist streak.

If your thought was, “Diabel being totally forgotten was hilarious,” then drop those ★s.

And if you found yourself thinking, “That 80% pay cut was brutal,” “Diabel getting left behind was hilarious,” or “‘Reject none who come, let none escape who leave’ had me laughing,” —then don’t forget to leave a comment, bookmark, ★rating, or review!