Dungeon-Succubus-Tester 36

Chapter 36 First-Class Slave Part ②꞉ Crotch Tattoo and Renovation


Edited by: Kanaa-senpai


 The purple-haired succubus standing before me—well, she was beyond ‘large-breasted’ and well into the realm of ‘explosive’—began her basic explanation regarding Slaves.


 The gist of it was as follows:


 * A ‘Crotch Tattoo¹ of Subjugation’ is engraved on the Slave’s lower abdomen. This was applied by the Queen and cannot be removed by anyone else.


 * Slaves owe absolute obedience to whoever is registered to the Crotch Tattoo.


 * Once registered, the state of servitude remains until the registered owner dies. Upon the owner’s death, the dungeon retrieves the Slave for resale.


 * A contraceptive magic has been cast on the Slaves. Only the master can temporarily deactivate it via the Crotch Tattoo.


 * While the Crotch Tattoo provides control over the body, it cannot force the heart into submission.


 * Slaves cannot enter any Room² other than their master’s.


 ”I see. Not having to worry about pregnancy is a plus, and keeping them out of other rooms is good too,” I said.


 ”It’d be a real headache for us if the Testers started fighting over them and thinning out the numbers, nfu~,” Remia replied.


 There was certainly a possibility of that. I had no intention of letting mine out, but if other Testers took their Slaves out to show them off, they might get snatched. If someone lost a Slave they’d worked hard to get, it could escalate into a bloody feud. I suppose they designed it to prevent that. Well, they could still get kidnapped and gang-raped in the dungeon, but I guess it’s better than being held captive long-term.


 ”True, it would be a problem for your side if Testers decreased for stupid reasons. So, reclaiming Slaves when the master dies is to prevent that too, I assume?” I asked.


 ”Exactly! We made it so you can’t just kill someone to steal their Slave,” Remia said.


 ”Well thought out. By the way, is the resale price lower than the original?” I asked.


 I figured it would be, but if it was too cheap, some might still try to kill the owners to wait for the resale.


 ”Hmm, they’re thinking of roughly half the original price,” Remia said.


 ”It hasn’t been decided yet?” I asked.


 ”I told you this is a Test Dungeon³, right? Selling Slaves is a first-time experiment. Same goes for these Rooms,” Remia said.


 ”Now that you mention it, that’s right,” I said quietly.


 So the succubus side is also feeling things out.


 ”Are you okay with everything else? I can answer anything about Slaves,” Remia said.


 ”Thanks. Let’s see… if the Crotch Tattoo can’t enslave the heart, does that mean I have to r**e them or get consent whenever I want s*x?” I asked.


 Consent is a pain, so rape would be the only choice, but…


 ”No, there’s no need for that. When the master registered to the Crotch Tattoo flows their Mana Capacity into it, her womb will throb and she’ll crave a man regardless of her will,” Remia said.


 ”Oh!” I said.


 What a classic eroge development!


 ”Hehe. And when someone with a higher Mana Capacity sends their mana-infused seed into the womb, she’s forced to climax. As her body is dominated, her heart is gradually pulled along and conquered. It’s just like a narcotic,” Remia said.


 ”Yeah, I’ve seen that enough to understand,” I said.


 After all, I used to be a bodyguard for a drug cartel.


 Human hearts are heavily influenced by the body. Just like how a depressed patient thinking of suicide can take a mood-enhancing drug and suddenly stop thinking about death altogether. But I guess drugs exist in the demon world too. The characters used for the word felt slightly different, but the meaning was the same.


 ”When the body is tainted by and becomes dependent on the pleasure of the narcotic, the heart follows. You can’t live without it. The Crotch Tattoo makes the master’s seed into that narcotic,” Remia said.


 ”The idea of seed as a drug is a brilliant piece of tech,” I said.


 I felt like giving them a Nobel Prize.


 ”It’s succubus magic. The Queen improved it. As a result, we can see exactly how far they’ve fallen. If you make them climax repeatedly and dye them solely in the master’s Mana Capacity, the Crotch Tattoo becomes vivid. Once that happens, both heart and body are dominated,” Remia said.


 ”That’s easy to understand, I like it,” I said.


 So the Crotch Tattoo acts as an affection parameter. And you raise that parameter just by pouring seed? Too easy.


 ”Right? So even if they resist with words at first, if you just flow Mana Capacity into the Crotch Tattoo to put them in heat and have your way, they’ll fall completely within a few days. The higher the master’s Mana Capacity, the shorter the period. Furthermore, once they’ve fallen, they’ll periodically lust for the master’s Mana Capacity in their womb. Just like a narcotic, right?” Remia asked.


 ”Perfect!” I replied.


 It’s a flawless system. This way, even if I take a high school girl, I won’t get prosecuted. Once she’s fallen, everything becomes consensual—in fact, she’ll be the one asking for it. Well, since she’s a minor, I’d be caught if it came out. But if the person herself doesn’t complain, there’s no worry.


 ”Hehe. Also, once a Slave’s Mana Capacity increases to a certain point, they can hide the Crotch Tattoo. Though it naturally appears when they get sexually excited,” Remia said.


 ”No, thank you for the detailed and clear explanation. You’re quite sharp,” I said.


 Explaining something so a guy without an education like me can understand requires real brains. It was very easy to grasp and got me motivated.


 ”Ehehe, it’s my job. Nfu~♪ I think I’m starting to see what Lilli and the others were talking about. You’re easy to talk to, and you know how to handle women,” Remia said.


 ”Not really. I just put what I honestly thought into words,” I said.


 ”That’s exactly what I mean. I’d rather… well, I want to do it while looking at your face, so maybe I’ll wait for you to grow,” Remia said.


 ”Hm? Wait for me to grow?” I asked.


 What did she mean by that?


 ”Yeah. Do you know why we only appear through the wall-hole?” Remia asked.


 ”To keep from giving Testers extra information?” I asked.


 Like strategy or monster info.


 ”That’s part of it, but the biggest reason is that our Mana Capacity rank is overwhelmingly higher,” Remia said.


 ”Is that so?” I asked.


 I was sure they were higher than me, but was there really that much of a gap?


 ”Yeah. Even a normal succubus is Rank B,” Remia said.


 ”B!? That high?” I asked.


 ”Well, we are demons, even if we’re at the bottom of the ladder ssu,” Remia said.


 ”I see. So what does the Mana Capacity difference have to do with the wall-hole?” I asked.


 If we weren’t separated by a wall, they could probably kill me just for annoying them, but I felt like that wasn’t it.


 ”It’s… like this,” Remia said quietly.


 ”Ugh… ah, damn…” I groaned.


 While I was tilting my head in confusion, she looked into my eyes.


 Suddenly, her eyes glowed red. In an instant, I was overcome by an unprecedented level of lust. An intense urge to attack the succubus in front of me and plow her repeatedly took control. My ‘son’ stood so tall he was about to burst through my sweats.


 Just as I was about to lose control and lunge at her—


 ”And, we’re done♪” Remia said.


 ”Eh?” I gasped.


 The red light faded from her eyes, and the uncontrollable, fierce lust I’d been feeling vanished as if it had never existed. Only my son remained rock hard.


 ”That’s aphrodisiac magic. It naturally activates when we get excited. It even carries over into our voices, and because it interferes with the opponent’s Mana Capacity, you can’t block it by closing your eyes or plugging your ears. That’s why we only show ourselves from the neck down,” Remia said.


 ”I see…” I said.


 I had no choice but to be convinced. If magic like that was constantly active, I’d be a straight shot to dying during sex.


 ”Looks like you understand. So, I’ll be waiting. No, not just me, probably Freya-sama, Lilli, Mia, and Aria too. We’re all waiting for your Mana Capacity rank to exceed ours so you can resist this magic,” Remia said.


 ”You’re setting the bar pretty high. Well, I’ll do my best to live up to it,” I said.


 ”Hehe, I’m counting on it. It might take… a little more time. Ah! I forgot what I was asked to do! Hey, hey, you beat the Area Guardian and have plenty of DP, right? Since you’re welcoming a high-class Slave, why don’t you renovate the room?” Remia asked.


 ”What? Suddenly using that sweet voice… but renovation, huh?” I asked.


 She suddenly grabbed my arm, pulled herself close, and pressed her explosive breasts against me through her bondage gear, looking up at me with a cooing voice.


 While suspicious of her behavior, I looked around the room.


 It was certainly too cramped for two people to live in.


 Plus, the toilet was a squat type. A modern girl might find it off-putting.


 However, I remembered that Facility Expansion in the Shop was ridiculously expensive when I checked before.


 I’m pretty sure a 1K was 100,000 DP, and a 1SLDK was 200,000 DP. Spending enough DP to buy a 5th-Class Slave just to widen the room felt a bit much.


 Maybe just change the toilet to a Western-style one? But the room really is narrow. If a 1K isn’t that much different from now, there’s no point. Hmm.


 ”Oh? Are you worried? Look, you’ll be able to use electricity too!” Remia said.


 ”I can use electricity!?” I asked.


 At the mention of electricity, my heart immediately leaned toward the renovation. That’s just how attractive being able to use power was.


 If I could use electricity, I could probably replicate items from the audiovisual room. The TV monitors and DVD players sold in the Shop would become usable. They also sold what looked like replicas of software from the animation department and movie club warehouse. Even game consoles and tons of games were available.


 More than anything, I’d be able to use fluorescent lights, hair dryers, and refrigerators. The drinks I bought at the Shop weren’t very cold. I wanted to drink something ice-cold from a fridge.


 ”Yeah, demon world engineers made a Magic Stone-type generator, but they don’t know how practical it is for actual living. We don’t know how to use tools that run on Earth’s electricity. They’ve only tried using it for lights and boiling water,” Remia said.


 ”Hey! That’s just a prototype then!” I shouted.


 You can’t call something a product if you haven’t tested how much power it produces or how many years it’ll last.


 ”Ahaha, when you put it that way, yeah, but before I came here, one of the high-ranking succubi told me to go recommend it. That person is scarier than Lananoah-sama. She’s a bit too serious, you know?” Remia said.


 ”Being told by your boss to sell a prototype… you’re like a salesman for a black company,” I said.


 Life is tough in the succubus world too, apparently.


 ”It’s an experimental dungeon and system, after all. We have our share of troubles. So, please! Be our guinea pig… I mean, our first customer!” Remia asked.


 ”You just said guinea pig! Good grief. Fine, but I’m basically a test subject, right? Then give me a discount. If you do, I’ll buy it,” I said.


 Electricity was enticing, but I was reluctant to pay full price for something I didn’t know would work without issues.


 ”Really!? Actually, I was told I could give up to a 30% discount for a 1SLDK. They want it tested in a room as large as possible,” Remia said.


 ”30% off, huh?” I asked.


 A 1SLDK was 200,000 DP, so 30% off makes it 140,000 DP. Since a 1K is 100,000 DP, it was a good deal.


 Hmm, still 140,000 DP. That’s 1.4 million yen. I feel like my sense of money is getting numbed by this sudden windfall. But it’s true that I need it.


 ”See? Isn’t it a deal? I’ll even throw in a king-sized bed right now!” Remia said.


 ”Sold!” I shouted.


 ”Much obliged!” Remia cheered.


 ”Heh, hahaha!” I laughed.


 When I found myself caught up in the rhythm and said I’d buy it, and she rubbed her hands together saying “much obliged,” I couldn’t help but laugh. She must have enjoyed the vibe too, as she let out a laugh herself.


 ”You’ve got a good sense of humor,” I said.


 ”You too… I mean, Sanada-kun,” Remia replied.


 ”Yakumo is fine,” I said.


 ”Right, then Yakumo. I’m Remia,” Remia said.


 ”Remia, huh? That’s a good name,” I said.


 ”Hehe, there you go again, praising me so casually. Nfu~, well then, let’s renovate the room!” Remia said.


 Saying that, Remia stepped away from me, placed her finger on her temple, and closed her eyes.


 In that instant, the room was enveloped in a dazzling light.


 I couldn’t stand the intensity and was forced to close my eyes, shielding them with my arm as I waited for the light to subside.


 After a bit, feeling the light fade, I lowered my arm and opened my eyes.


 ”Whoa… this is incredible,” I said.


 When I opened my eyes, I was in a room with calm, dark brown flooring. The light from the fluorescent lamps on the ceiling illuminated the room brightly. It looked to be about 15 to 16 mats in size, and the kitchen in the back marked it as a living room. In the corner were the wooden desk and chair from the stone prison-like room, and the Magic Crystal was on top of it. Next to the desk, the steel rack I’d bought at the Shop and the clubs and shields I’d gotten from treasure chests were laid out as they had been. The place where a window to a balcony would normally be was a wall. Of course, you couldn’t see the outside scenery. It was still a closed-off environment, but just having a wide, bright room gave it a significant sense of openness.


 ”I’ve deducted 140,000 DP from the Magic Crystal. You’ll have to get the furniture yourself. The electricity is over here,” Remia said.


 While I was moved by the sight of a normal room for the first time in a long while, Remia took my hand and led me to the entrance. Reaching the entrance, she opened a door that looked like the washing machine nook you’d see in a studio apartment. There, a silver object about the size of a refrigerator was seated. In the center of the object was a hole labeled ‘Magic Stone Slot,’ and above it was a small monitor. It displayed 100%.


 ”This is the Magic Stone-type generator. If you put Magic Stones in here, the percentage increases, so refill it before it hits zero. An F-Rank Magic Stone usually gives a 10% boost,” Remia said.


 ”I see, it really is Magic Stone-powered. So, how much electricity does 10% get me?” I asked.


 ”Hmm, if you keep the lights on, boil water, and take a shower, maybe three or four days,” Remia said.


 ”So it’s still at that stage, huh?” I said.


 Apparently, they hadn’t used TVs, fridges, or electric stoves. If I used those, it probably wouldn’t last a single day.


 ”Well, magic-conductive stoves and cooling devices are magic tools, after all. They haven’t tested them with this,” Remia said.


 ”So similar things exist as magic tools,” I said.


 Life in the demon world where they lived might not be that different from Earth. Their obsession with electricity was probably to increase the value of Magic Stones when they set up dungeons on the surface. If Magic Stones could generate electricity, every country except oil producers would scramble to enter the dungeons.


 ”That’s right. So use it a lot, and if there are any glitches, tell anyone when you use the wall-hole. Your voice can be heard on the other side, Yakumo,” Remia said.


 ”I figured as much,” I said.


 The reactions had been in real-time, after all. Hmm, she seems like she’d answer me now.


 ”This isn’t exactly a reward for reporting glitches, but there’s something I want to ask about the dungeon,” I said.


 ”About the dungeon? Hmm, that kind of thing is usually forbidden… but what do you want to know?” Remia asked.


 ”About the special reward for the 5th floor. I got a 1st-Class Slave Exchange Ticket this time, but will the next person who clears it get the same thing?” I asked.


 There were only 14 first-class ones left. I wanted to hear this.


 ”Ah, that much should be fine. From the second group onward, the rank drops to 2nd-Class, then 3rd-Class. It’s guaranteed up to the 10th group, but after that, it becomes a matter of probability,” Remia said.


 ”I see,” I said.


 As expected. It’ll probably be 5th-Class tickets from the 5th group onward. First come, first served—or rather, those who actively cooperate with the test are favored.


 ”So, keep conquering the floors, Yakumo,” Remia said.


 ”Does that mean if I defeat the Area Guardian on the 10th floor, I can expect another 1st-Class Slave Exchange Ticket?” I asked.


 ”Hehe, that’s a secret♪” Remia replied.


 ”Hoh,” I muttered.


 Since she didn’t deny it, the possibility seemed high. Oh right, I should ask about the Magic Sealing Crystal too.


 ”One more thing. I got something called a Magic Sealing Crystal, but do the monsters inside also rank up or evolve?” I asked.


 ”Eh? You got that!? That’s amazing! The drop rate is 0.1%, you know?” Remia asked.


 ”It’s that low? So the Magic Sealing Crystal was a pretty rare item,” I said.


 One out of a thousand kills. It was like the drop rate for a limited-time character in a gacha game.


 ”Yeah, yeah. Apparently, in a world we destroyed long ago, there was someone who used magic to tame monsters. The Demon King at the time thought it was interesting and had our magic engineers create Magic Sealing Crystals so anyone could use monsters. Well, you can only seal monsters created as pseudo-lifeforms in the dungeon. In this dungeon, they’re set to drop from the 3rd floor. Oh, and about the ranking up? Monsters sealed in the crystal will properly rank up when they defeat other monsters. Evolution too, of course,” Remia said.


 ”…I see. That’s good to hear. Hm? In the case of monsters not sealed in a crystal, do they not rank up even if they kill others?” I asked.


 I was slightly taken aback by Remia mentioning a ‘destroyed world’ so casually, but her wording bothered me, so I checked.


 ”Those of the ‘Demon’ race created by Demon God Zazard-sama cannot absorb the soul fragments obtained when killing each other. If we could, minor demons like us would have been wiped out long ago. Demons can only obtain soul fragments when they kill someone who is not a ‘Demon.’ However, for monsters in a Magic Sealing Crystal, as long as the master flowing Mana Capacity into them is not a ‘Demon,’ they can obtain soul fragments through the master,” Remia said.


 ”So that’s how it works,” I said.


 Soul fragments must be like experience points. They can’t be absorbed between those made by the same god. Meaning they can’t gain XP. But for crystal monsters, if the master isn’t a ‘Demon,’ they can get XP through them. By going through the master, the XP from a ‘Demon’ is converted into non-‘Demon’ XP? Does that mean succubi can’t get XP from each other, but they can from non-‘Demons’—meaning us humans? If we keep getting stronger, will we eventually be turned into fodder for the succubi to rank up? No, becoming Rank B can’t be that easy. I doubt a succubus would rank up even if they killed 200 Rank D or C humans.


 ”Hehe, you don’t have to worry. We won’t do something so wasteful,” Remia said.


 ”Oops, was it on my face?” I asked.


 It seemed she’d realized I was thinking about the possibility of us being turned into XP after the test.


 ”Of course I can tell. It’s okay. As long as you fulfill your duties as a tester for the trial dungeon, the promise to return you to the surface will be kept. We value contracts,” Remia said.


 ”I see, that’s a relief then,” I said.


 I remember reading in a manga that devils value contracts. That said, the opponent is a demon who destroyed another world. I’ll need to prepare for the worst to make sure at least I survive.


 ”Besides, I need Yakumo to hold me,” Remia said.


 Saying that, Remia glanced at my crotch and gave a small lick of her lips.


 ”I-I see,” I said.


 Becoming Rank B might bring a different kind of life-threatening danger. Well, for now, it’s good to know the Kobold in the crystal can rank up.


 ”Hehe, it’s okay. For Yakumo, becoming Rank B soon…” Remia began.


 Something made her stop mid-sentence, and she pressed her finger to her temple.


 ”Yakumo, looks like the preparations are done. She’s being sent over now, so come to the living room,” Remia said.


 Remia took my arm again and led me to the living room. Upon reaching it, a Magic Circle was already glowing, just like when Remia appeared. After the circle emitted a brilliant light, she finally appeared.


 —


 Summary:


 Yakumo receives a detailed explanation about the Slave system and the ‘Crotch Tattoo’ that ensures absolute obedience. He learns that the succubi are currently separated by walls due to their overpowering aphrodisiac magic which he cannot yet resist. After being persuaded by the succubus Remia, Yakumo agrees to a discounted room renovation that includes a Magic Stone generator for electricity. The chapter ends with the arrival of his newly acquired 1st-Class Slave via a magic circle.


 —


 Character Insight:


 Yakumo demonstrates a blend of ruthless pragmatism and cautious survivalism; he is quick to accept ‘eroge-like’ mechanics for his benefit but remains deeply suspicious of the demons’ long-term intentions toward humanity. Remia shows a more ‘corporate’ side of the demon world, acting as a salesperson and guide, highlighting that even in a fantasy dungeon, social hierarchies and labor pressures exist. The dynamic between them shifts from business-like to flirtatious, yet a power imbalance remains defined by their respective Mana Capacity ranks.


 —


 Behind the Scene:


 The author included a correction note regarding the price of the ‘Magic Pouch’ (reduced from 300k to 100k DP) to maintain internal consistency. The ‘wall-hole’ (kabe-jiri) mechanic is explained here not just as a trope, but as a necessary safety measure for low-level humans to interact with high-rank succubi without dying from magical over-stimulation.


 —


 T/L:

1 Crotch Tattoo (淫紋 – Inmon): A common trope in adult Japanese media where a magical crest is placed on the lower abdomen, often linked to sexual submissiveness or sensory control.


2 Room (マイルーム): A common term in Japanese social games and ‘isekai’ titles referring to a private player housing area or sanctuary.


3 Test Dungeon (テストダンジョン): Refers to the meta-narrative element where the characters are part of a ‘beta test’ or experimental phase of the dungeon’s operation.


4 Mana Capacity (魔力値 – Maryoku-chi): Specifically refers to the numerical value or ‘rank’ of magical power an individual possesses, functioning like a level or stat.


5 Facility Expansion (設備拡張): A game-like menu option to upgrade the dimensions or features of a home base using accumulated points.


6 Magic Stone (魔石 – Maseki): Crystallized mana often dropped by monsters, used here as a fuel source for ‘magitech’ appliances.


7 Demon God Zazard-sama (魔神ザザード): The deity figure in this setting responsible for the creation of the demon races.


Notes:


• Remia – A cheerful and mischievous succubus with long purple hair and a massive breasts reaching ‘explosive’ levels. Acts as a guide and explains slave systems. Knows Sanada by reputation. Rank B Mana Capacity. Intelligent and persuasive.

• Freya – A new ‘Wall-Butt’ succubus with long white hair, a high-class appearance resembling a high school student, and large breasts. She is currently trapped in a wall-style display for slave purchase.

• Aria – The mesugaki succubus.

• Mia – The comforting succubus.

• Yakumo – A 25-year-old human male. He has facial scars, stab wounds, and gunshot scars from his time in a war zone. He works as a school guard.


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Edited by Kanaa-senpai.
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