Using a Mysterious Spellbook Ended Up Creating a Slave Harem - Chapter 4

 High School Enrollment and Encounters

Four days had passed since I achieved my long-awaited first experience with Iroha as my partner. On the afternoon of that day, I swung my hips like an absolute ape between her slender legs, ultimately pouring everything inside her until I reached a point where barely any semen came out even when I came. I had also succeeded in enslaving her through the Crest Magic, securing a female body that I could use freely from then on. It was the greatest day of my life—one where I indulged in Iroha's petite body to my heart's content, to the point where I even felt a sense of satisfaction from the dull ache running through my heavy lower back on the way home.

Additionally, various physical changes occur once someone is enslaved, one of which is that they will not get pregnant unless the master desires it. This was documented in the spellbook, and for some reason, I instinctively understood it the moment the enslavement succeeded, so I kept creampieing her without worrying about pregnancy. However, it was also a slightly pathetic day for me as a man, so from that point on, I began practicing enhancement magic related to my male anatomy. Specifically, I focused primarily on increasing my round count and boosting my stamina, along with a little bit of penis enlargement.

And today was the high school entrance ceremony. Since it was a Thursday weekday, I was currently on my way to the high school with my mother.

I had already set an appointment with Iroha to meet at her room this coming Saturday. Because I had instructed her to live her life in a way that wouldn’t arouse suspicion from others, securing Sunday was impossible. I've been retaining my semen for three days since yesterday. What should I do, and what should I have her do for me on Saturday? As I was thinking about this, we arrived at the school gates. The area was crowded with people waiting to take commemorative photos with the school name sign. Although I didn't want to, I lined up in the waiting queue at my mother's request, figuring this too was a form of filial piety as I posed for the camera. Once that was over, I finished my registration, parted ways with my mother, and went to check the class assignment sheets.

As for the number of first-year students, the advanced track had fifty people split evenly into Groups A and B with twenty-five students each. The general track had one hundred and eighty students, which, combined with the entertainment track, made up Groups 1 through 6, each with a little over thirty students. Unfortunately, no other students from the middle school I attended had managed to pass the exam besides me, so I searched only for my own name. Starting my search from Group 1, a few names I recognized caught my eye, but since I had no particular interest in male celebrities, I ignored them. The place where my name finally appeared was Group 4. Counting the number of people, Group 4 had thirty-two students, meaning there were two students from the entertainment track in it. If possible, let them be girls—and beautiful ones at that, I wished as I checked the locations of the shoe lockers and the classroom, entered the school building, changed into my indoor shoes, and started walking toward Group 4.

Finding the classroom sign for Year 1 Group 4, I stepped inside and checked my assigned seat written on the blackboard. The seating arrangement consisted of six rows horizontally; vertically, there were six seats in the two rows closest to the window, and five seats in the remaining four rows. Students were arranged in alphabetical order regardless of gender, and my spot appeared to be the second seat from the front in the third row from the window—a seat quite close to the teacher's podium. Thinking that while it was better than being directly in front of the podium, I couldn't wait for a seat rearrangement, I sat down in my chair. Just then, the conversations of my classmates, about half of whom had already filled the room, reached my ears.

"W—What do you think?" 

"No way, it’s gotta be someone with the same name, right?" 

"Well, she is the same age, and they do have the entertainment track here, but..." 

"B—But if it’s really her, that’s insane!" 

"If it’s actually Rina Takechi herself, just coming to this school was worth it." 

"Right? Ahh—man, I hope it's true."

I reflexively reacted to the name "Rina Takechi" mentioned by the three boys chatting behind me to my right. To think that the name of that ultra-beautiful girl, who boasts top popularity in that national idol group, was actually on the class assignment sheet...


Currently, the most popular female idol group in this country was "Systema Solare," abbreviated as Sus-Sola. Come July of this year, it would be seven years since their formation, and it was now a massive group consisting of over fifty members.

Within that group, the one who took first place in the popularity poll—which started in their third year of formation—during her very first participation last year was none other than "Sol," Rina Takechi. Furthermore, it was an overwhelming victory, with a vote margin nearly double that of the runner-up, "Terra," Tomomi Uchikawa.

By the way, those ranked first through ninth in the popularity poll formed the core group and assumed the same name as the overall group, "Systema Solare." In other words, "Systema Solare" was a designation that represented two different entities.

The nine members of "Systema Solare" were given nicknames based on the Latin names of the sun and the eight planets. As mentioned before, first and second place were firmly established as Sol and Terra. Those ranked tenth and below belonged to a different group name, and their nicknames were the English names of dwarf planets or satellites, which gave off a distinct feeling of being a downgraded version. This might be one of the reasons why the popularity polls generated such massive excitement.


While I was thinking that if an idol known by the vast majority of the nation became my classmate, I would absolutely make her mine using the Crest Magic, the surroundings grew unnaturally quiet. Before I knew it, a single girl was checking the seating arrangement in front of the blackboard. The girl, who had long black hair reaching down to her waist, turned around and sat in the seat directly in front of me, prompting a sound like a collective sigh to echo through the entire classroom. Checking the blackboard, the name written for that spot was "Kamishina."

I was also one of the people who had frozen in sheer astonishment upon seeing her face. The girl in the seat in front of me was the absolute epitome of a traditional Japanese beauty—an ultra-stunning girl. Sitting gracefully, she faced forward, presenting me with a view of her straight black hair that flowed nearly to her lower back. Other students who entered late were similarly struck by her beauty and silently took their seats one after another.

The classroom was filled with a strange tension, and time simply ticked away without any particular conversation. Just as I was wondering how this would turn out, a woman in her forties who appeared to be the homeroom teacher and a female student with semi-long black hair walked into the room at the same time.

"Oh my, it's rather quiet in here, isn't it?"

It was only natural. Following right behind the ultra-beautiful Kamishina, the female student who entered alongside the teacher was Rina Takechi—the ultra-popular idol herself. What is this? Did I just land in a mega-jackpot class? I thought as I listened to the teacher's self-introduction and the explanation of what was to come. First, the teacher erased the seating chart from the blackboard, wrote her own name, and turned back to face us.

"Well then, nice to meet you all. I am Yoshiko Wada, and I will be your homeroom teacher for this class. My subject is English. I look forward to working with you for the coming year." 

""W—We look forward to working with you too."" 

"Now then, the entrance ceremony will be held in the gymnasium, so let us move there. Please line up in the hallway in alphabetical order." 

""Yes.""


The entrance ceremony was a perfectly ordinary entrance ceremony. That is, except for the fact that there were numerous celebrities among the students, parents, and guests. The one drawing the most attention was, predictably, our class's Rina Takechi. There were other female idols from the same group as Rina Takechi present as well, but given the massive gap in their popularity poll rankings, it couldn't be helped. Showered with envious glances from the boys of other classes, the entrance ceremony concluded without any incident, and all the new students returned to the classroom.

"Well then, that is all for today. Miss Takechi, you are able to attend school tomorrow as well, correct?" 

"Yes. It's not a problem." 

"Understood. Tomorrow, I will have everyone start by introducing themselves, so please think of something to say." 

""Yes, understood."" 

"Let's bring things to a close for today, then. Uh, Aizawa-kun, could you give the signal?" 

"Eh? Ah, y-yes. ............Uh, well then... Stand! Bow! Dismissed?"

Laughter echoed at the awkward ending. Amidst this, Miss Takechi was the very first to stand up and hurriedly left the classroom, while Miss Kamishina also made a swift departure for home. Following them, I watched my classmates leave the room one after another, and once the numbers had thinned out considerably, I stood up from my chair. Walking down the hallway, I overheard the conversation of some boys ahead of me who seemed to have known each other for a while.

"We ended up in the absolute best class!" 

"Seriously. We got Rina-chan, plus that other girl... Kamishina? Is that how you read it?" 

"Who knows? It could be read as Koshina too." 

"Either way, having two beauties like that means guys from the other classes are going to be so jealous." 

"I really want to get close to them somehow. Rina-chan is probably impossible, though." 

"With a face like yours, the other one is impossible too." 

"That's harsh. The same goes for you, doesn't it?" 

"Can't argue with that... Ahh, I wish I'd been born handsome."

Sucks to be you guys. Rina-chan might be out of reach for now, but I am absolutely going to make the other one mine, I said to them in my mind as I changed my shoes at the lockers and walked out of the school building. Walking alongside my mother, who had been waiting for me, I casually shared my impressions of the class. As expected, she was shocked to hear that Rina Takechi was my classmate. I replied that since she would barely be attending school anyway it didn't really matter, and just as I was mentioning that there was another girl who was easily just as beautiful, I realized something. I realized that I should have used magic on that beautiful girl right then and there. Feeling mildly appalled by my own stupidity, I swore to myself that I wouldn't forget to do it starting tomorrow.


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