The setting is Kawakami City, a government-designated city in the Kanto region. Kawakami Academy, located in this city, is characterized by unique events and classes, including a legally sanctioned dueling system between students, based on the educational philosophy of the school's principal, Tesshin Kawakami.
The story begins when the Kukki Zaibatsu, which possesses the world's top financial power, executes a plan called the "Bushido Plan" at Kawakami Academy.
"It was the 'S' version, not the original..."
In the classroom of 2-B at Kawakami Academy, I was contemplating the world I had crossed into.
Like the previous Gundam SEED, this world of Majikoi—formally known as Majide Watashi ni Koi Shinasai!—is largely a trilogy: the original, 'S', and 'A'. To be precise, you can consider 'S' as 'the timeline where the protagonist did not become romantically involved with anyone' in the original, and 'A' as the sequel to 'S'.
And in this world, there are girls called 'Bushimusume' (Warrior Girls), who are overwhelmingly stronger than the boys. The plot of the adult game Majikoi is about the protagonist trying his best to get romantically involved with these Bushimusume.
"But seriously, it's a fascinating system, isn't it? To be able to duel legally."
Erika, seated next to me, was intensely curious (while looking at the list I had prepared beforehand) about who she should duel.
By modification, Erika and I have been in class 2-B from the start. We chose the second year because the protagonists are students in 2-F. In terms of class difficulty, it shouldn't be much of an issue, unless it was the Special Advanced Class 2-S (which requires an academic rank above 50th in the grade).
"Ah, hey, hey, what about this person?"
"Let's see... You're starting there, huh? It sounds interesting for the plot, but do you think you can win?"
"Of course! (As long as I don't let them find out I'm using magic, I can manage somehow)."
"I see. Then, let's go challenge her to a duel during the next break."
So, during the break, after letting the class time flow by, Erika and I headed to the target's classroom.
"Excuse us~"
"Oh? What business do second-years have in a third-year classroom?"
"Ah, hello, Kawakami-senpai."
The person who first spoke up after we entered the upperclassmen's classroom was this world's main heroine, Momoyo Kawakami. She has large breasts and a sharp, rather intimidating gaze. This Momoyo is also the strongest person in this world. She is, after all, a level that is viewed with caution even by the world's leadership.
"Is Matsunaga-senpai here?"
"Me?"
Responding to Erika's voice, Tsubame Matsunaga, the new heroine from 'S', stood up. She has a friendly, cheerful, and straightforward personality, and intentionally avoids the S-class to be in F-class, just to have fun. This Tsubame is our target this time.
"Matsunaga-senpai, I'd like to request a duel, please!"
Saying that, Erika placed her own emblem on Tsubame's desk.
"Oh my, to be challenged by a junior, huh? Sure, I'll accept. ♪"
Tsubame also removed the emblem she was wearing and placed it on top of Erika's. This is the procedure for a duel at Kawakami Academy. It's like a nobleman throwing a white glove at his opponent.
Once this is done, the date, time, location, and method of the duel are discussed and agreed upon by both parties. Actually, any kind of match is fine, as long as both parties consent. Still, I don't think Erika would ever choose to compete with anything other than a sword.
"Jun, it's decided~"
"That was fast. So, are you fighting with swords after all?"
"Of course. Did you think I'd choose rock-paper-scissors?"
"No. If it were anything other than a sword, the result would have been disastrous, I thought."
"What do you mean~ Are you saying I have no other redeeming qualities besides a sword~?"
Exchanging banter like that, we left the 3-F classroom.
"That girl just now was cute... I'll invite her for tea sometime soon. ♪"
"Momoyo, you should restrain yourself a little, de gozaru."
She was stopped by her classmates, but that Momoyo Kawakami is a HENTAI who desires to flirt with girls. Well, I doubt Erika would ever submit to her.
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"Both parties, step forward!"
Later, on the playground after school, Erika and Tsubame were facing each other. The referee was the P.E. teacher, Lu Yi-sensei. Furthermore, the students who came to watch the duel formed a circular hedge around them.
"I heard a second-year challenged Matsunaga-senpai to a duel."
"It's some nobody, right? There's no way she can win."
The crowd seemed to assume Tsubame would win overwhelmingly. In this world, Erika is completely unknown. Tsubame probably accepted the duel knowing that.
"Then, let's confirm the rules again. You'll be using replicas of weapons, and the first person to score one hit wins, is that correct?"
"Yes."
"That's fine."
While Erika held a katana, various weapons were stuck in the ground around Tsubame. Her fighting style is to use these flexibly as needed. But she probably won't get a chance to use them...
"Then... BEGIN!"
"First, a warm-up—"
"You're slow, Senpai."
"Huh?"
The moment Tsubame drew the spear in front of her, the spear was sent flying into the air with a high-pitched kakiin sound. And before the spear hit the ground, Erika's practice sword was pressed against Tsubame's neck.
"W-winner, Chiba Erika!"
Lu-sensei, who had been dumbfounded by Erika's Self-Acceleration System magic, quickly regained her composure and declared the end of the duel.
"Ugh... I can't believe such a strong girl was unknown..."
"Tee-hee, that's what you get for being overconfident at the beginning, Senpai. ♪"
"Uguu..."
"(You know what happens after you lose a duel to me, right?)"
"(I know-ooh...)"
Tsubame regretfully shook the hand Erika offered her with a smug smile. The spectators looked like they still couldn't comprehend the outcome, but a little while later, applause slowly started to rise.
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After the duel was over and we had returned to the room we rented in this world, the expected visitor arrived shortly.
"Welcome, Matsunaga-senpai."
"I-I'm intruding..."
Tsubame, still in her school uniform, timidly took off her shoes and entered. Then, she was led toward the bedroom as I prompted her.
"Ah, Matsunaga-senpai, hello there. ♪"
"Erika-chan, right? Honestly, I was fooled. To hide that kind of skill..."
Ignoring Tsubame's sidelong glare, Erika stood up from the bed she was sitting on.
"So, just to confirm again, do you remember the rule?"
"I said I do. It's 'A Bushimusume who loses a duel to Chiba Erika or Tachibana Jun will become a sex pet for life,' right? I never thought I'd be violated in my pussy in a place like this..."
"You'll just have to accept it. Come on, Jun is waiting too."
"Ugh... I know-ooh..."
When Erika urged her, Tsubame reluctantly started undressing her uniform. She removed the excessive pouches from her waist and let her uniform top and bottom drop to the floor. Then, she discarded her bra and panties, spread her legs while completely naked, and used both hands to open her cleft, showing me the depths of her pussy.
"M-Matsunaga Tsubame is reborn from a Bushimusume into a sex pet. Please mess with my pussy a lot. ❤"
Her expression is still a little stiff, but she made the vow with a smile, so I'll count it as a success. Well then, shall we proceed to the main event?
I sat on the bed and took my cock out of my pants. First, I had Tsubame give me a blowjob while I masturbated to prepare for penetration.
"Ha-mu... juru, jubu, gubu... jurururu, reroreroroo..."
"Ooh, you're pretty good. Did you practice?"
"N-no way, I would never practice that... jurururu, gububu, chuchu-uu, juru, chu, gucchugucchu..."
Despite her denial, the way she sucks on my glans in her mouth shows that she is no longer a Bushimusume, but already a full-fledged sex pet. And while using her right hand to stroke my shaft, her left hand continues to tease her own nipples.
"Well then, I think I'll play over here."
"Haa... rero... nnnh!?"
The moment Erika inserted her finger into Tsubame's cleft, the mouth that was sucking on me detached with a vulgar tsupon sound.
"Th-that, no-o-o-o...!"
"Fufu, does it feel too good? Like right here."
"Oh-hoh-oh-oh-oh!❤ I'm gonna come! I'm gonna come before your cock even comes in-aah-aah-aah!❤"
Erika's finger technique must have improved, as she's become quite the expert at making women cry compared to the beginning. Her technique for stroking my cock with her hand is also top-class, alongside Sayaka.
After that, she intentionally made a squelching sound, and her finger was withdrawn from the pussy, leaving a string of love juice behind.
"Oh, oh-oh-oh-oh-oh!❤ Ah-fu-uuu..."
"It wouldn't be fun if you came like this. Come on, Jun, it looks like she's ready. Aah-aah-ahn!❤"
"Thanks as always."
"Nnnh! Nn-uuu-uuu-uuu!❤ Ju-Jun's two-hole hand-job really does feel good-ii...❤"
After reciprocating with a hand-job to make Erika's pussy squish, I turned my attention back to Tsubame.
"Turn around."
"Y-yes... Hya!"
I lifted both of Tsubame's legs and plunged my cock deep into her already wet and gooey pussy in a rear doggy style. In the process, it tore through the proof of her virginity.
"Ah-gaaah-aah..."
"Congratulations on graduating from virginity."
"This kind of graduation is, ugh, not happy-ooh..."
"Is that so? I was hoping to have a surprise guest watch."
"Sur-prise...?"
When I gave a meaningful look, Erika brought the surprise guest from the next room.
"Mom...?"
Standing in front of Tsubame, who was exposing her joined parts, was her mother, Misago Matsunaga. She was also completely naked, and the semen I had just shot inside her vagina was still running down her thigh.
When I made the Hawke sisters my pets, I had secretly planned to try a mother-daughter combo at least once, and I managed to get it first by using Erika's duel as an excuse. ♪
"Tsubame, you also became Master's sex pet, didn't you? I'm so happy...❤"
"M-Mom..."
"Misago, since it's your daughter's lost virginity celebration, make her feel good so she can come properly."
"Yes, Master. ❤"
"S-stop it, Mom... Nha-a-a-a-a-a-a!❤"
"Rerorero... Tsubame's pussy is tightening, saying it doesn't want to let go of Master's cock...❤"
The mother licks her daughter's joined parts. Watching that, Erika and I couldn't stop smirking. Erika, in turn, was inserting her fingers into Misago's two holes and making her moan while sucking on her pussy.
"I'm being thrust by a cock and having my pussy licked by my Mom, I'm gonna come-o-o-o-o!❤"
"Come on, Misago, you come along with your daughter."
"Yes-ii-ii-ii-ii!❤ I'm coming while watching my daughter's female climax and having my pussy messed with-uuuuu!❤"
"Aah-a-a-a-a-a-a-a-a-a-a-a-a-ahn!❤"
Having reached simultaneous climax, the mother and daughter cried out in sync. Tsubame collapsed inside me, exhausted, and Misago fell face down on the floor with her legs spread wide.
"A mother-daughter simultaneous climax is incredibly fun."
"It is, but..."
"What is it?"
"Tsubame came too quickly."
"Oh, really... Did you not ejaculate?"
"Yeah."
I withdrew my cock and laid Tsubame on the bed face down, just like her mother, and it was still fully erect.
"To climax before getting Master's semen, this calls for a punishment later. Well then, I'll take that semen! Nnh, jurururu!❤"
Erika's mouth showed no concern that it was glistening with Tsubame's love juice, swallowing the shaft whole in one go. The pleasure from enjoying Tsubame's meat pot just a moment ago, combined with Erika's current blowjob, is so intense I feel like I'm about to come...
"Nfufu!❤ Shoot lots of Jun's semen into my mouth! Jurururu, jubok, jubok!❤"
"Ugh, kuuuu!"
"Nnh, nn-n-n-n-uuu-uuu!❤ Nfuu... nnh... (gokyu gokyu) Jun's semen is the best after all. ❤"
Swallowing the semen that had been building up from the short wait, Erika nestled into my arms, satisfied.
"Hmm, I think it might be useless after all."
"Useless? What are you talking about? Hey, wait a minute!?"
After all, I prefer to finish inside. As if to protest that, my cock, which had immediately recharged, responded. I slipped her panties aside and invaded Erika's pussy right then and there.
"Nfu-uuu-uuu-uuu!❤ Seriously, haven't you shot enough yet?"
"Not enough. Erika, I want to stream semen into your uterus. Show me your glazed expression."
"Oh, oh-hoh-oh-oh! If you say things like that, my uterus will start to throb-ii...❤"
From a reverse cowgirl position, she wrapped her arms around my neck, and in sync with my lifting and dropping her, Erika also slammed her hips down.
"Here I come, Erika!"
"Aah-a-a-a-a-a-ahn!❤ Come, come-e-e-e-e-e-e-e-e!❤"
I conquered Erika's vagina with a longer ejaculation than before. The feeling of ejaculation after thrusting with full power, and the satisfaction of re-conquering Erika as my own, felt so good it made me dizzy.
"The Bushimusume might be surprisingly weak on this side, huh?"
"Maybe so."
This is hardly a typical pillow talk, but I guess this is the nature of my relationship with Erika.
More accurately, the modern magic that Erika and the others use is probably just too unfair in this world. Even if they were caught using a CAD, it's not a known device, so there's no way it could be called cheating. Furthermore, Erika's specialty, the Self-Acceleration System, is something that even the top tiers of this world cannot handle. At this point, the moment Erika successfully establishes a duel, it's virtually certain that the opponent will become a sex pet.
"About that... what about this girl for the next dueling opponent?"
"Hmm... A classmate this time, huh."
I fully expected her to try to fight Momoyo or someone similar.
"I was getting a really unpleasant look from that woman. I just don't want to get involved with her..."
That intuition is probably correct. So, she chose a classmate for the next opponent so she wouldn't have to go to the third-year classroom, huh.
"But this person... Will she even accept a duel in the first place?"
"We'll cross that bridge when we get to it. We'll go to the classroom tomorrow. You can't have a 0% chance of winning if you don't try."
"That's true."
Afterward, we decided to officially settle the Matsunaga mother and daughter as sex pets to live here. I used consciousness modification on Tsubame's father so that he believes, "My wife and daughter will be away from home for a while; there is nothing to worry about." Worst case, I can just make him think they got tired of him.
(I wonder what the result of tomorrow's match will be... The opponent is a high-pride 2-S student.)
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