Natsuki Minamiya, English teacher at Saikai Academy High School Division and homeroom teacher of Class 1-B, claims to be twenty-six years old and is said to have inherited the bloodline of a distinguished noble house, which is why she often appears particularly dignified and commanding.
As a teacher, she is quite capable and has a high reputation among the students, very popular with them. However, how much of this affection is due to her overly cute appearance is a matter of opinion.
Besides being a teacher, Natsuki Minamiya has another identity—National Attack Mage Officer.
As the name implies, this is an official position under the national government, existing specifically to handle incidents caused by demons.
Not only is Natsuki Minamiya a National Attack Mage Officer and an active professional mage, but she is also the instructor of the Special District Guard Unit—a special mobile force on Itogami Island under the External Affairs Division of the Artificial Island Management Corporation, specifically tasked with combating demons. She holds considerable authority and influence in Itogami City.
In the educational institutions of the demon district, to protect students, regulations state that each school must have a certain number of teachers concurrently serve as National Attack Mage Officers. Natsuki Minamiya is one such teacher at the Private Saikai Academy.
In other words, she is a colleague of Kaiser, who is currently nominally under the Lion King Agency, and is someone who knows his identity.
"The pretty boy raised by the Lion King Agency actually dares step into my turf. There should be a limit to stealing my business, don't you think?"
As the future homeroom teacher and English instructor, Natsuki Minamiya's attitude toward the transfer student entering her class was extremely poor.
No helping it—though they are colleagues, the two belong to different organizations, so it's fair to say they are rivals in business.
"Don't say that to me, Miss Minamiya." Kaiser shrugged and said, "I was sent here as well. If you have complaints, you should take them up with the higher-ups. Don't make things hard for a mere workhorse like me."
"Hmph." Natsuki Minamiya snorted coldly and said in an unhappy tone, "Those Three Saints guys always shamelessly overreach, even trying to meddle in areas under my jurisdiction. Sooner or later, they need to be taught a lesson."
"And you, transfer student—since you're now my student, behave yourself and study properly. Don't cause trouble, understand?"
Hearing this, Kaiser looked at Natsuki Minamiya with a smiling expression.
That look clearly said, "I can't promise that," causing Natsuki Minamiya to click her tongue again.
"I'll be watching you—don't play any tricks."
After giving a warning, Natsuki Minamiya hopped down from her chair and walked out while speaking.
"Come, I'll take you to the classroom."
Hearing Natsuki Minamiya's words, Kaiser shrugged again and followed the petite figure ahead.
Along the way, Natsuki Minamiya kept fanning herself with a lace fan, prompting Kaiser to comment.
"By the way, Miss Minamiya, aren't you hot like that?"
On this artificial island where it's summer year-round and daytime temperatures are high enough to be unbearable, Natsuki Minamiya's tightly wrapped black dress looked suffocatingly hot even to those just watching.
"Annoying." Natsuki Minamiya replied without turning her head, "Since you know it's hot, stop bringing up topics that make people feel stifled."
"So that means you are feeling hot, huh?" Kaiser acted as if he didn't understand her sarcasm and said, "Want me to cool you down?"
As he spoke, Kaiser quickly extended a finger and touched the back of Natsuki Minamiya's neck.
Utilizing the power of Hyōrinmaru, a chill immediately emanated from Kaiser's finger and shot into Natsuki Minamiya's clothes.
"!!!!!!!"
In that instant, Natsuki Minamiya's entire body froze, as if a surge of tingling sensation ran from her feet to her head, making her petite body shiver uncontrollably.
Moments later, at the very top floor corridor of the Saikai Academy High School Faculty Office Building, Natsuki Minamiya's furious voice rang out.
"Transfer student! Are you looking to die?!"
Crackling sounds erupted through the hallway.
Even the High School Faculty Office Building trembled slightly, as if from a quake.
......
High School Division, Class 1-B.
In the classroom, at the podium, Natsuki Minamiya stood with an extremely displeased face, speaking coldly.
"As you can see, a transfer student will be joining our class."
Natsuki Minamiya didn't even glance at Kaiser standing next to her, but her meaning was clear—it was his cue to introduce himself.
"My name is Kaiser." Understanding her intent, Kaiser gave a concise introduction without going into detail: "I look forward to your guidance."
Hearing this, all the students below the podium immediately focused their gazes on Kaiser.
Among them, some looked curious, others showed faint suspicion, and many of the girls gazed at Kaiser with sparkling eyes, as if drawn to him.
"A transfer student, huh…"
A flashy, exquisitely beautiful girl with a luxurious blond hairstyle and a heavily personalized uniform, which gave her a stylish gal-like impression without being gaudy, spoke in surprise to the two boys next to her.
"Kojo, Motoki, don't you think this transfer student is kind of special?"
The ones she addressed were two male high school students.
One had gray hair and looked listless, while the other wore large headphones and had a carefree demeanor.
"Special?" The gray-haired boy yawned and asked in confusion, "Really? I didn't notice."
The laid-back boy, however, carefully studied Kaiser on the podium, his eyes flickering slightly before he laughed.
"That's because you're too dense, Kojo. The transfer student is indeed somewhat special."
It wasn't just them. Many in the class felt there was something special about the new student.
They sensed a mysterious, eye-catching aura about him that was hard to explain, making it hard to look away.
Naturally, this was due to Kaiser's exclusive weapons.
In the world of the Campione, Kaiser had slain Kaguya-hime from The Tale of the Bamboo Cutter, and from her seized a set of five sacred treasures—legendary artifacts known as the Five Treasures of the Bamboo Cutter.
Each of the Five Treasures had unique powers. Among them, the Dragon's Jade enhanced the bearer's luck and charm.
Meanwhile, the Swallow's Yatsuka Jewel added a layer of mystery and concealment, making Kaiser's charm attention-grabbing yet not overbearing—subtle, refined, and enigmatic.
Thus, the students present all felt that he was particularly remarkable—especially those who were themselves unique individuals, who subconsciously paid more attention to him, drawn in by his presence.
In such an atmosphere, the gray-haired boy scratched his head in confusion.
"Is he really that special?"
Indeed, he was quite dense.
But Kaiser wasn't. He immediately noticed him, met his gaze, and smiled.
Seeing this, the gray-haired boy was briefly stunned before quickly returning the smile.
Only then did Kaiser shift his gaze and look toward Natsuki Minamiya.
"Where should I sit, Miss Minamiya?"
Natsuki Minamiya looked impatient, crossed her arms, and snorted coldly.
"Just find any open seat. Do I need to lead you there myself?"
"Haha…"
The students in the class all burst out laughing.
"Fwooo~" The laid-back boy whistled and said, "Looks like Natsuki-chan isn't too fond of transfer students."
"Natsuki-chan is angry?" the fashionable girl said in surprise. "Did the transfer student do something to upset her?"
As soon as the words fell, two pieces of chalk whizzed through the air like bullets and exploded on the foreheads of the two.
"Oww!"
"Ah!"
They both cried out in pain.
"Don't add a '-chan' to a teacher's name!"
Still in the posture of throwing chalk, Natsuki Minamiya shouted furiously.
"She's scary!"
The gray-haired boy was startled. The words slipped out instinctively, earning him a sharp glare from Natsuki Minamiya, and he quickly ducked his head like a quail.
"What are you looking at? Hurry up and find a seat!"
Then Natsuki Minamiya noticed Kaiser's playful expression and grumbled unhappily.
"Got it, Natsuki-chan."
Dragging out the '-chan,' Kaiser swiftly made his way down from the podium.
"Damn brat…"
Natsuki Minamiya barely restrained herself from attacking him.
Thinking back to what had happened earlier in the High School Faculty Office Building, a look of caution flashed in her eyes as she regarded Kaiser.
She had attacked in anger—not going full force, but aiming to subdue him—yet he effortlessly dodged it, and she hadn't even managed to touch him once.
She was Natsuki Minamiya, a certified National Attack Mage Officer, instructor of the Special District Guard Unit, known as the Witch of the Void.
In Europe, she even had another title: Demon Slayer.
Every time she acted, it was a calamity for the demon targets.
She had nearly never failed—countless criminals had been arrested and vanished because of her.
She could manipulate space magic as easily as breathing—something ordinary people couldn't even use.
Frankly speaking, even the Three Saints, hailed as humanity's strongest mages, had no guaranteed victory against her.
Natsuki Minamiya stood at the pinnacle of all mages.
For someone like her to seriously try to catch someone—and still fail against a high school freshman?
Thinking of the intel she had gathered on him, Natsuki Minamiya cursed inwardly.
"The idiots at the Artificial Island Management Corporation actually said this guy doesn't use jutsu or magic, so he's harmless for now?"
"Harmless, my ass!"
"Chaos Dragon… in a way, this guy might be even more dangerous than that girl who became the Fourth Primogenitor!"
Just what were the Lion King Agency people scheming?
Why would they send someone like this to Itogami Island—and let him get close to the Fourth Primogenitor?
The world's strongest vampire and the world's strongest demonic beast—what kind of apocalyptic duo is that?
If something went wrong, all 560,000 residents of Itogami Island could go down with them. Did those bastards even understand the consequences?
"Sigh…"
As if foreseeing an unsettled future, Natsuki Minamiya sighed quietly.
Unaware of Natsuki Minamiya's complex thoughts, Kaiser sat down at an empty seat next to the gray-haired boy, under everyone's gaze.
"Alright then."
Natsuki Minamiya glanced at Kaiser, who had clearly chosen that spot on purpose, composed herself, and announced with a stern face:
"Let's begin the lesson."
The students immediately focused and opened their textbooks.
Though the one teaching at the podium looked younger than them, none dared challenge Natsuki-chan's authority.
Any who tried… well, they were still there rubbing their reddened foreheads, teary-eyed.
No matter how cute she looked, Natsuki Minamiya was a certified National Attack Mage Officer. If you pissed her off, you'd better pray you didn't get strung up to the ceiling by some suddenly-appearing chain.
There was a common belief at Private Saikai Academy—if you had to offend someone, offend the principal, not Natsuki Minamiya. She was the real top authority in this school.
And so, the students earnestly listened to the lesson, even the gray-haired boy who had looked so lethargic earlier perked up.
Kaiser rested his chin in his hand, watching Natsuki Minamiya speak eloquently at the podium, then glanced at the two boys and one girl next to him, smiling inwardly.
"Perhaps, my school life won't be so boring after all."
After all, the people here—each one is more special than the last.
......
Several dozen minutes later, the bell rang to signal the end of class.
Natsuki Minamiya decisively ended class, leaving even the textbook behind, and walked out while fanning herself with her lace fan.
Only then did the students relax and begin to gather around Kaiser to chat.
"Hey there, transfer student."
"Welcome to our class."
"You're called Kaiser, right?"
"Such a unique name—are you not from this country?"
The students were clearly still very curious about Kaiser and asked him questions one after another.
Especially the girls, who seemed quite enthusiastic—clearly charmed by him.
Facing these lively, ordinary students, Kaiser didn't put on airs. He smiled and chatted casually, saying just enough, very laid-back.
"Alright, alright, don't crowd around. It's hot—don't scare the transfer student away."
The laid-back boy removed his headphones and jokingly dispersed the crowd.
"Geez, these guys are way too curious."
The stylish girl complained.
The gray-haired boy scratched his head, then looked at Kaiser and smiled.
"I'm Kojou Akatsuki. Just call me Kojou."
He introduced himself.
"I'm Motoki Yaze. Nice to meet you, transfer student."
The laid-back boy greeted him.
"Asagi Aiba."
The stylish girl also introduced herself.
The original protagonist group had officially arrived.