Chapter 2 The Magic Shop’s Slave꞉ An Erotic Isekai Fantasy Experiment
Edited by: Kanaa-senpai
After seeing the Elf customer out, I flipped the sign hanging on the shop door to “Closed” and drew the curtains before heading to the back. When I stepped into the living space behind the store, I found a woman with shocking pink hair sprawled out on the floor.
”Did you make a sale, Master?”
”Oh yeah,” I casually replied. “First-timer, too, but they went all-in on a pretty high-level set.”
This is Lily. She’s the signboard girl—or maybe just the experiment subject—of my magic shop, Harvest, and, well, she’s my slave. Once I decided to start selling aphrodisiacs, the very first thing I did was visit a slave trader.
I promised the thugs who helped me out a round of drinks once the business took off and a few discreet vials of the love potion, and that’s how I got the starting capital.
It was a pretty grey deal, sure, but giving someone a small personal amount of an aphrodisiac isn’t a crime on its own, and the whole thing was just a verbal agreement. It should be just defensible enough if the military police ever start asking questions.
I took that cash right over to the slave dealer, and that’s where Lily was being sold. I knew right away she was the one. Where I came from in my previous life, pink hair was a sure sign of a wanton woman. She was a young female slave, so she cost me a bit more than I planned, but she perfectly fit what I needed. Why did I spend all that money on a slave? Well, obviously…
”So, are we going to do an ‘experiment’ again today?”
”Yup. Take off your dress and lie down,” I instructed her.
She’s the guinea pig for the aphrodisiacs and adult goods I manufacture. Female-use aphrodisiacs only work on women. Sure, I can make some that work on both, but I have to experiment to confirm whether they actually work on a woman. I’m not going to sell a fake potion, you know?
”Fine, fine. You’re such a demanding master, you are.” she drawled.
”Don’t complain. You agreed to this when I bought you, didn’t you?” I challenged.
”I know, I know.” she conceded.
As she admitted this, Lily yanked off the simple, one-piece dress I’d bought for her. No underwear. It’s not that I haven’t given her clothes to wear, though. This is totally her choice.
She claims there’s no point in wearing clothes if she’s just going to take them off anyway, but I know full well she’s getting her lower body wet while waiting for me. No matter how much she complains, she’s passionate, that girl.
We only made one contract when I purchased her: she has to be the experiment subject for the adult goods and aphrodisiacs I create. That’s all. Of course, the standard slave contract rules—like obeying your master—are in place, but she is allowed to refuse any request that goes beyond the specifics of the ‘experiment subject’ clause.
That means she could refuse physical labor, housework, or intimacy that wasn’t related to an experiment, but I haven’t been refused a single thing by her so far. Seeing her naked body got me eager, so I grabbed her moderately sized breasts and gave them a squeeze.
”Hey, that’s a breach of contract, isn’t it?” she gasped.
”Come on, now. We’ve done way more than just touch these, haven’t we?” I murmured.
”Hmph… well, I guess it’s fine…” she admitted, her cheeks flushing as she turned her face away. See? Just like I thought. I was glad I was a believer in the Church of Pink-Haired Wantons as I took her nipple into my mouth. Ah, a woman’s chest after a hard day’s work is the absolute best.
”Master, stop it!” she cried. “Aren’t you supposed to be experimenting? If you do that too much, I’m gonna get all wet!”
”Alright, alright. Just wait there for a sec,” I told her.
She was already wet from anticipation before I even touched her, I thought to myself as I made a sucking sound, ‘Chup,’ and let go of her nipple before sitting up. Now, what should I experiment with today?
Just like the shop area, the living space was filled with magic tools, packed in everywhere. This room, which I modified so we could sit directly on the floor like I used to in my previous world, might actually be messier than the shelves in the store. It’s a messy arrangement, but I’ve got my own kind of order to it.
I reached out and grabbed the root of a Phantom Grass¹ that I’d just bought the other day. The above-ground parts—the leaves and stems—have properties that change how you see things and a use, but the swollen root is known to have a mild, tingling sensation when chewed and warms the body when absorbed.
”Are you going to mix it right now?” she asked, peeking over.
”Yeah. Seeing that customer today gave me a new idea for an aphrodisiac,” I replied.
”Ugh! Then why did you order me to take off my clothes?!” she whined.
”Huh? ‘Cause I wanted to lick your chest?” I admitted.
”Mooooaster!” she shrieked.
Ignoring the pouting Lily, I next grabbed some powdered Adalite, dried Cocol-Cow belly fat, and a small vial of Samon Mushroom broth, and dumped them all into a mortar and pestle.
All of them are high-grade ingredients that warm the body with different kinds of stimulation—expensive items I could finally afford once the business started taking off.
A tingling, a gentle heat, a sudden blaze, a floating sensation… I was hoping their combined effects would result in a superb sweating effect and an increase in blood flow. I’d been imagining this all while watching the red-faced Elf customer.
”A pill?” she wondered.
”Hmm, depends on the effect. I think it might be too strong as-is, so I’ll probably dissolve it and make it a liquid. But first, of course…”
”Yeah, yeah. After I’ve experimented with it,” she finished for me.
”That’s right.” I affirmed.
Lily, still naked, leaned in from behind and spoke. The way she subtly pressed her chest against my back wasn’t really ‘accidental’—it was a definite service. It was an ‘I’ll let you have fun, so don’t be too crazy with the experiment’ begging chest request.
I had no intention of damaging her, especially since I paid a high price for her. Even if she wasn’t my property, the common sense from my peaceful previous world would prevent me from trampling on anyone’s human dignity.
Though, that argument falls apart a bit when you remember she’s a slave, but in this world, slaves actually have their rights protected surprisingly well. Beyond the contract details, the law punishes anyone who harms a slave.
What she’s really worried about is me accidentally messing up. Even if the law protects her, no one wants to go through a horrible experience in the first place.
”Alright, it’s done. Lick a little bit. Just a tiny dab on the tip of your pinky, got it?” I instructed.
”Yes, yes, I get it, Master~” she purred.
I added a small amount of magic at the end to ensure the ingredients didn’t neutralize each other. The half-hearted Lily followed my directions, touching the finished powdered medicine with the tip of her pinky, then dramatically sticking out her tongue to lick it up in front of me.
”How’s the taste?” I inquired.
”Ugh… it’s a powerful bitterness, then a tingling, a little saltiness, a hidden sweetness way in the back, and the bitter aftertaste that gets stuck in my nose is really gross,” she confessed, working her mouth around the flavors. Her impression was almost exactly what I’d expected. When making the final product, I would definitely need to dilute it with water and add something to make it drinkable. Boiling it down would intensify the bitterness and make the medicinal effect hard to control.
”Ah!” While I was deep in thought, Lily clutched her lower abdomen and doubled over. Looks like the aphrodisiac was already starting to work.
”I-It’s hitting me! Wait, this is way too fast-acting!” she yelped.
”Well, it is the raw concentrate,” I pointed out. “How does it feel? Which part is hitting you first?”
”Ah, ah, my stomach! It’s burning hot! It feels like my insides are on fire where I swallowed it! I-Is this really safe?!” she wailed.
Hmm, the Cocol-Cow fat came first. It’s a powerful magic beast, certainly, but does it really take effect that fast?
”Ahhh!? T-The next one is hitting me! It’s tingly and floaty, and the gentle heat is still building in the back! It’s right between my legs! Ah, ah, my center is tightening all by itself, and my hands and feet are all hot and numb, ah, ah, AAHHH!” she screamed.
”Whoa, just as planned,” I observed. “What about your most sensitive point and your nipples? They should be tight enough to hurt by now, I figure?”
”They’ve been seriously messed up for a while now!” she shrieked back. “What is this stuff?! It’s tingly, tingly, AHH, AHH, AHH!”
Even while religiously answering my questions, Lily was pinching her own nipples and most sensitive points, pulling on them with all her might. She must be throbbing beyond control. Yeah, this might actually be a little too strong.
”Alright, let me get a good look at the affected area,” I commanded.
”I-I can’t deal with that right now! Ahi! Hiahhh!” she groaned.
I rolled the slave, who had started to drip love juice onto her thighs, onto her back for a close look. Her nipples and most sensitive point were bright red, and it was hard to tell if it was the drug’s effect or just because she’d rubbed them too much. Well, since she was this far gone, the aphrodisiac’s effect was definitely real.
”Ahh, no way! Th-This is too much, Master! Ahh, ahh, I’m gonna reach the peak, I’M REACHING THE PEAKG!”
Lily thrust her hips into the air and reached her peak with a huge shudder. Part of me wanted to watch the girl, whose pink hair was flying everywhere as she convulsed in ecstasy, for a bit longer, but that would probably be cruel. Reluctantly, I gave her an antidote to calm the heat in her body. It wouldn’t neutralize everything, but it would take the edge off. I’d probably need to use this to adjust the final product, too.
”Haa… haa… W-What did you make me lick?” she panted.
”My bad, my bad. But it really shouldn’t have had such a powerful effect,” I muttered.
”I think it’s because of the magic you mixed in at the end… Master, your magic power has been increasing lately, hasn’t it?” she conjectured.
”Huh? But it’s only a tiny bit. I don’t have more spells I can use or anything…” I countered.
”Instead, you have magic that’s specialized for magic drugs and tools, though. If you keep using it so diligently every day, you’ll master it quickly,” she explained.
”Is that how it works?” I questioned.
”That’s how it works,” she confirmed.
Lily seems to have some knowledge of magic. I only found this out after I bought her, and I don’t know why she hid it. Having magic would have affected her sale price as a slave, so the slave trader definitely wouldn’t have kept quiet about it if he knew, meaning she must have kept it secret from him. It smells like trouble, but I decided to ignore it for now.
”…Anyway, what are you going to do about this heat?” she asked, challenging me.
”Ah, well, Mr. Cock #5 or #6, which one do you want?” I offered.
”Don’t be an idiot. If I use one of those, I’ll be a loose-holed woman for sure…” she grumbled.
”They’re a pretty popular product, you know…” I tried to reason with her.
Lily, her face red, just glared at me. Then, without a word, she pushed me down and violently tore my clothes off.
”Ahhh, I’m being attacked!” I playfully screamed.
”Hee hee hee, my little lady, no one’s coming to help you if you scream here, ya know?” I chuckled.
She’s a slave who knows how to have fun. I gave her an erotic smile and licked my lips before she climbed on top of the part of me she’d pulled out. It slid into her woman-place with a slick, total lack of resistance. But once it was deep inside, I felt the tightening grip of her inner muscles. Despite all the hard experimenting we do every day, she still had a very tight center.
”Nngh… Haa…”
”How does it feel?” I asked.
”Mmh, it feels really good. A hot body works great on a body that’s already on fire. It’ll definitely sell, this one,” she breathed.
”Is that right? I wanted to get your thoughts on a toy for all the single folks, too, though…” I mentioned.
”Save that for later. I can imagine, though. A toy would be satisfying enough, but there’s a chance it’ll make them feel even more lonely,” she analyzed.
”Hmm, then developing a heating toy is a mission-critical priority…” I mused.
I held Lily as she clung to me, and we kept talking shop, completely without any sexual energy. Lily was persistently licking my ear while rocking her hips back and forth.
She probably finds the friction between her entrance and my body comforting. Our research has shown that aphrodisiacs that activate the sensation of heat have a high affinity for physical interaction. They can be used for self-pleasure, but the side effect of an increased feeling of loneliness, making the user even more excited, was a major drawback.
The solution we came up with was the ‘Warm-Warm Body’ heating toy concept, but temperature regulation has been difficult. Just the other day, I nearly burned Lily’s woman-place. The way she jumped up and shot the toy out while screaming “It’s too hot!” was pretty funny, but I clearly remember the beating she gave me afterward.
”Hmm… You’re thinking of something rude, aren’t you?” she accused.
”Not at all,” I denied. “I was just thinking that a warm woman-place is a comfortable place for a man, too.”
”Mmmh… I-Is that so…?” she murmured, looking a little happy as she let herself be placated. Well, I wasn’t lying. Her woman-place, which was sweetly squeezing my body, was more than just warm—it was hot, like I was soaking in a hot spring.
The copious amount of love juice she produces might be a trait of her developed center, but the combination feels extremely good. It’s the ultimate sensation, incomparable to a microwave-warmed lotion and masturbation sleeve.
”Hmm, not just your woman-place is warm, either. Your whole body is toasty. Could you drink this in the winter and become my hot water bottle?” I asked, teasing.
”Mooaster… I can warm you up without drinking that,” she purred sweetly.
She gave me a kiss on the cheek, and every time she did, her center squeezed my body, making the feeling unbearable. Best of all, her body was warm everywhere I touched. That warmth was a testament to her excitement, and it made me strangely excited, too.
I ran my hand across Lily’s back, spreading the sweat that had collected on her spine. I reached down to her plump bottom, grabbing and spreading her cheeks. This would be a seriously embarrassing act for a normal woman, but Lily didn’t seem to care, too busy licking and sucking on my neck.
I lifted her bottom, let it go, and watched it wobble. When I kept repeating the annoying motion, she grew impatient and started shaking her hips, making her backside quiver on its own. Naturally, the part of me buried in her woman-place was violently rubbed, and a shiver of pleasure shot up from the base of my spine.
”Nngh… Are you close to the peak?” she asked, her voice low.
”Ahh, yeah. This is hitting the male side a little too hard…” I groaned.
”Fufu… My super-wet woman-place feels that good, huh? It’s fine, Master. You can release as much as you want, wherever you like… ♡” she whispered.
Lily, her voice even more melted than her center, widened the movement of her hips and started rubbing my body with her woman-place. She’s gotten so good at this. I remember how embarrassed she was the very first time we experimented.
Thinking about the innocent Lily from back then made my body grow even harder. Soon, Lily began to let out regular sounds—”Ah, ah, ♡” and “Nngh, nngh, ♡”—and her already warm body became hotter and hotter.
”Ugh, I’m gonna release, Lily!” I choked out.
”Nghh, ahh! ♡ Hau! ♡ Let it out! ♡ Give me lots of fluid! ♡ Shoot it out! ♡ Pshoo! Pshoo! ♡♡♡” she shrieked.
Blururururuu! Pshooowwwwww!! Pshooopshooowwwwww!!! Pshooo~~ I couldn’t hold back any longer. I hugged Lily tightly and shot my load deep into her woman-place. Lily clung to me with both her hands and legs, reaching her peak in a frenzy of joy as she received the fluid into her core.
Her inner muscles contracted, squeezing the fluid in sync with my body’s throbbing, and she pressed her hips down with her weight, crushing her own inner area. The pleasure she felt was intense—whether from the aphrodisiac or her own natural desires, I couldn’t tell—and drool was leaking from the corner of her loosely opened mouth.
Eventually, my release and Lily’s peak subsided. I stroked her trembling body and licked up the drool that had run down to her chin. In response, she eagerly kissed my lips, sucking in more saliva than the amount of drool I’d just consumed.
”Remember to take your birth control pill,” I reminded her.
”…Haaai,” she replied reluctantly, her face falling as if the mood had been completely ruined by my opening line after our intimacy. I know it’s completely insensitive to say something like that to a woman I just held, but this girl sometimes tries to skip her contraceptive pill when I’m not looking.
I can’t indulge that feeling, unfortunately. If she gets pregnant, I won’t be able to experiment with any more aphrodisiacs or adult goods. The business would stop, and we’d be completely broke.
Speaking of, the contraceptive pill is another one of my shop’s popular products. Apparently, the major religions in this world don’t encourage birth control or abortion, so very few shops make it. By the way, my pill is a super contraceptive with fewer side effects and much more reliable than those from my previous world.
”…Well, eventually. Once I’ve saved enough money so that neither of us has to worry about money during your pregnancy, I’ll knock you up.” I soothed her.
”Hmph! It-It’s not like I want it that badly! But if Master wishes it, I-I could give you like twenty kids!” she declared, a tsun to dere ratio of about 1:9—far from the golden ratio. That day, she made me take one of our stamina-boosting pills (which is also a product, of course) and squeezed me dry a good two-digit number of times.
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Summary:
The shopkeeper finds his slave, Lily, waiting for him and proceeds to test a powerful new aphrodisiac made from magical ingredients like Phantom Grass and Cocol-Cow fat. The experiment proves highly successful, leading to an immediate and intense arousal in Lily and an accidental, yet thrilling, climax from the super-concentrated formula. The chapter ends with the two indulging in passionate, contractual sex, highlighting their odd but affectionate master-slave dynamic, even as the master insists on contraception due to his adult goods business necessity. This blend of explicit erotic fantasy and sharp-eyed business pragmatism defines their unique relationship.
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Character Insight:
Lily’s character is a fascinating mix of outward whining slave and inward eager lover. Her protestations are merely foreplay, and her genuine interest in the magic shop’s products and her master’s experiments reveals her true loyalty and enjoyment. Her sudden revelation of her knowledge of magic hints at a deeper, more complicated background than a simple slave, suggesting she is a woman of hidden talents who chooses to remain submissive to her master because she finds the entire situation of sex, adult fantasy, and experimentation stimulating. Her easily placated emotional state is a key to her master’s continued dominance.
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Behind the Scene:
This scene establishes the core mechanic of the story—the erotic experiment with magic adult goods—and the nature of the protagonist’s financial dealings, including the grey market loan from the thugs. The protagonist’s strong feelings about the necessity of the super contraceptive for the sake of the business directly informs his pragmatic, non-emotional stance towards his slave, even though their intimacy is deep. The near-disaster with the heating dildo earlier gives a clear, funny, and slightly dangerous context to their experiments, making the current success feel earned.
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T/L:
1 Phantom Grass is a custom magical plant in this world, not a direct Japanese term. ↩
Notes:
• Lily – the sl*ve and primary experiment subject for the magic shop, ‘Harvest.’ She has striking pink hair, Blue eyes, medium breasts, which the Protagonist associates with being ‘wanton’. She has a working knowledge of magic, which she kept hidden from the slave trader.
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Edited by Kanaa-senpai.
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