Dungeon And Slave: The Lustful and Violent Slave Harem of the Guard and Students Chosen as Testers for the Succubus Dungeon

Chapter 36: Grade 1 Slave, Part 2 – Lust Tattoo and Renovation

The purple-haired succubus in front of me—her breasts more like explosive than just big—starts explaining the basics of Slaves.

Here’s a quick summary of what she said:

◯ A Servitude Lust Tattoo is engraved on the lower abdomen of Slaves. It’s applied by the Queen and can only be removed by her.

◯ Slaves are absolutely obedient to the person registered with the Lust Tattoo.

◯ Once registered, the servitude lasts until the registered person dies. If they die, the dungeon reclaims and resells the Slave.

◯ Slaves are enchanted with contraception magic. The master can temporarily disable it via the Lust Tattoo.

◯ The Lust Tattoo controls the body but not the heart.

◯ Slaves cannot enter anyone’s My Room except their master’s.

“I see. No pregnancy worries, and they can’t enter other rooms—that’s good.”

“If testers fought over Slaves and reduced their numbers, we’d be in trouble,” she says.

Fair point. I wouldn’t take a Slave outside, but if other testers paraded theirs and someone kidnapped them, it could spark a bloodbath. This prevents that.

Though they could still be abducted and gang-raped in the dungeon. At least long-term captivity is off the table.

“Yeah, losing testers over petty disputes would suck for you too. So, reclaiming Slaves when the master dies is to prevent that?”

“Exactly. No point killing someone to steal their Slave if you can’t keep them.”

“Well thought out. By the way, are resold Slaves cheaper than their original price?”

I bet they’re cheaper, but if they’re too cheap, someone might kill to get them.

“Hmm, they’re planning for about half the original price.”

“Not finalized yet?”

“It’s a test dungeon, remember? Selling Slaves is a new experiment. Same with My Room.”

“Right, you did say that.”

So the succubi are feeling their way through this too.

“Anything else? I’ll answer anything about Slaves!”

“Thanks. Well… if the Lust Tattoo doesn’t control the heart, do I have to rape or get consent for sex?”

Consent’s a hassle, so rape’s the way, but…

“Nope, no need for that. When the master channels mana into the Lust Tattoo, the Slave’s womb aches, and they crave a man, no questions asked.”

“Whoa!”

What an ero-game setup!

“Hehe, and when someone with higher mana shoots mana-infused semen into the womb, it forces a climax. As the body gets dominated, the heart follows, like with magic drugs.”

“Yeah, I’ve seen that plenty.”

I was a cartel bodyguard, after all.

The human heart is heavily swayed by the body. A suicidal depressive can take a mood-lifting drug and suddenly think death’s the last thing on their mind.

But magic drugs in the demon world? The kanji feels different, but it’s probably the same.

“When the body gets hooked on the pleasure of magic drugs, the heart follows. You can’t live without it. The Lust Tattoo makes the master’s semen the drug.”

“Semen as a drug? Brilliant tech.”

I’d give it a Nobel Prize.

“It’s succubus magic, refined by Queen-sama. Now we can see how far they’ve fallen. Repeated climaxes dyed by the master’s mana make the Lust Tattoo vivid. That means body and heart are fully dominated.”

“That’s clear and handy.”

So the Lust Tattoo’s like an affection meter. And it rises just by pumping in semen? Too easy.

“Right? So even if they resist verbally at first, channel mana into the Lust Tattoo to arouse them, screw them, and they’ll fall completely in days. The more mana the master has, the faster it happens. After full submission, they’ll periodically crave the master’s mana in their womb and get aroused. Just like a magic drug, right?”

“Perfect!”

Flawless system. I can screw high school girls without legal backlash. Once they’re fully submissive, it’s all consensual—they’ll even beg for it. Well, she’s underage, so I’d get arrested if caught, but if she doesn’t report me, no worries.

“Hehe, also, the Lust Tattoo can be hidden if the Slave’s mana grows enough. It’ll show up when they’re sexually aroused, though.”

“Thanks for the clear, detailed explanation. You’re smart.”

Explaining so a guy like me with no education can understand takes brains. It was super clear and got me pumped.

“Ehehe, it’s my job. Nf♪ I get what Lili and the others meant. You’re easy to talk to and know how to handle women.”

“Not really. I just said what I thought.”

“That’s the thing! I’d do Wall Butt… no, I wanna have sex face-to-face, so maybe I’ll wait for you to grow.”

“Grow?”

What’s that mean?

“Yup. Know why we only appear as Wall Butts?”

“To avoid giving testers extra info?”

Like strategies or monster details.

“That’s part of it, but the main reason is our mana ranks are way higher.”

“Really?”

I figured theirs were higher, but that much?

“Yup, even regular succubi are Rank B.”

“B!? That high?”

“We’re demons, after all~”

“I see. So how’s the mana gap tied to Wall Butts?”

If we weren’t Wall Butts, pissing one off could get me killed, but I feel that’s not it.

“It’s like this…”

“Ugh… ah, shit.”

As I tilt my head, she locks eyes with me.

Her eyes suddenly glow red, and I’m hit with an insane urge to pounce on her and screw her senseless. My dick’s straining to burst through my sweatpants.

Unable to hold back, I’m about to lunge when—

“All done♪”

“Huh?”

The red glow fades, and the overwhelming lust vanishes like it never happened. My dick’s still hard, though.

“That’s Lust Induction magic. It triggers when we get aroused. It’s in our voice too and messes with your mana, so closing your eyes or ears won’t help. That’s why we only show from the neck down.”

“Got it.”

Can’t argue with that. If that magic was always on, I’d fuck myself to death.

“Glad you understand. So I’m waiting. Not just me—probably Freyja-sama, Lili, Mia, and Aria too. We’re waiting for your mana rank to surpass ours so you can resist this magic.”

“You’re betting big on me. I’ll try to live up to it.”

“Hehe, I’m counting on you. Time’s… still a bit left. Oh! I forgot what I was tasked with! Hey, you’ve got tons of DP from beating the Domain Guardian, right? Since you’re getting a high-class Slave, why not renovate your room?”

“What? Turning all cutesy and clingy… but renovation, huh?”

She grabs my arm, presses her massive breasts against me through her bondage gear, and gives me a sultry, upturned look.

Suspicious of her sudden shift, I glance around the room.

It’s definitely cramped for two.

And the toilet’s Japanese-style. Modern girls might not like that.

But I remember the renovation costs in the shop were crazy high.

I think it was 100,000 DP for a 1K and 200,000 DP for a 1SLDK.

Spending enough for a Grade 5 Slave just to make the room bigger feels like a hard pass.

Maybe just swap the toilet to Western-style? But the room’s small, and a 1K wouldn’t change much. Hmm.

“Oh? Hesitating? Look, you’d get to use electricity too!”

“Electricity!?”

That word tilts my heart toward renovation. Electricity’s that appealing.

With electricity, they probably copied the AV room’s stuff. The shop had TVs, DVD players, and even software—likely copied from the animation department or film club’s storage.

They had gaming consoles and tons of games too.

Plus, fluorescent lights, hairdryers, and fridges would work.

Shop drinks aren’t cold enough. I want ice-cold ones from a fridge.

“Yup, demon world techs made a magic stone generator, but we don’t know how practical it is until it’s used in real life. We don’t get how Earth’s electric devices work. They’ve only tested it for lights and boiling water.”

“Oi! That’s a prototype!”

Something untested for power output or lifespan isn’t a product.

“Haha, yeah, but before coming here, an upper-class succubus told me to push it. She’s scarier than Lanaoa-sama. Too serious, y’know?”

“Pushing a prototype like a salesman in a shady company, huh?”

The succubus world’s tough too.

“It’s a test dungeon and system, so we’re all struggling. So, please! Be the guinea… I mean, the first buyer!”

“You said guinea pig! Fine, I’ll buy, but it’s like being a lab rat. Give me a discount, and I’m in.”

Electricity’s tempting, but I’m not paying full price for something untested.

“Really!? Actually, I’m allowed to give a 30% discount on a 1SLDK. They want it tested in a bigger room.”

“30% off, huh?”

A 1SLDK was 200,000 DP, so 30% off is 140,000 DP. A 1K’s 100,000 DP, so it’s a better deal.

Still, 140,000 DP—1.4 million yen. My sense of money’s warped from this windfall.

But it’s necessary.

“Pretty good deal, right? And now, we’ll throw in a king-size bed!”

“Sold!”

“Thank you for your purchase!”

“Guh, haha!”

“Hahahaha!”

Her sales pitch, like some TV shopping channel, makes me blurt out “sold.” She rubs her hands and says, “Thank you for your purchase,” making me laugh. She giggles too, clearly enjoying the vibe.

“You’ve got some flair.”

“You too… no, Sanada.”

“Yagumo’s fine.”

“Alright, Yagumo. I’m Remia.”

“Remia, nice name.”

“Hehe, slipping in casual compliments like that. Nf♪ Okay, let’s renovate.”

Remia steps back, touches her temple, and closes her eyes.

The room’s engulfed in blinding light.

I shut my eyes and shield them with my arm, waiting for the light to fade.

Feeling it subside, I lower my arm and open my eyes.

“Whoa, this is amazing.”

It’s a dark brown, calming hardwood-floored room.

Fluorescent ceiling lights brighten the space.

It’s about 15–16 tatami mats, with a kitchen in the back, so it’s a living room.

In the corner are the wooden desk and chair from the stone cell, with the magic crystal on top.

Next to it, the steel rack from the shop and clubs and shields from chests are untouched.

Where a balcony window would be is just a wall—no outside view.

It’s still a closed environment, but the size and brightness make it feel open.

“I deducted 140,000 DP from the magic crystal. Get your own furniture. Electricity’s over here.”

As I marvel at the normal room, Remia takes my hand and leads me to the entrance.

At the entrance, she opens a door typically for a washing machine.

There sits a silver object the size of a fridge.

In its center is a hole labeled “Magic Stone Slot,” with a small monitor above showing 100%.

“This is the magic stone generator. Put stones in to raise the percentage. Refill before it hits 0. An F-rank stone adds about 10%.”

“Got it, definitely magic stone-powered. How much power does 10% give?”

“Hmm, lights, boiling water, and a shower last about three or four days.”

“That’s all they’ve tested?”

They haven’t tried TVs, fridges, or electric stoves. Those might drain it in a day.

“Well, magic stoves and fridges are magic tools, so they haven’t tested those either.”

“So they’ve got similar magic tools.”

Their demon world life might not be so different from Earth’s.

The focus on electricity is probably to boost magic stones’ value when dungeons go public.

If stones generate power, every non-oil-producing country would dive in.

“Exactly. So use it a lot and report any issues to any Wall Butt. Your voice carries through.”

“Figured as much.”

The responses were real-time.

She seems open to questions now.

“Not about reporting issues, but can I ask about the dungeon?”

“Dungeon stuff? Hmm, that’s kinda off-limits… but what do you wanna know?”

“The 5th floor special reward. I got a Grade 1 Slave Exchange Ticket. Will the next person get the same?”

There are only 14 Grade 1s left, so I need to know.

“Oh, that’s fine. From the second group on, it’s Grade 2, Grade 3, and so on. Guaranteed up to the 10th group, then it’s a chance.”

“Got it.”

As expected. Probably Grade 5 tickets by the 5th group. First come, first served—or rather, those who actively test get priority.

“So keep conquering, Yagumo.”

“So if I beat the 10th floor Domain Guardian, I can expect another Grade 1 Slave Exchange Ticket?”

“Hehe, that’s a secret♪”

“Oh?”

Not denying it means it’s likely.

Oh, I should ask about the Magic Seal Crystal too.

“One more thing. I got a Magic Seal Crystal. Can the monster inside rank up or evolve?”

“What? You got one!? That’s amazing—0.1% drop rate!”

“That low? So it’s a super rare item.”

One in a thousand kills? Like a limited-time gacha character.

“Yup. A world we destroyed had magic to tame monsters, and the Demon King thought it was cool. He had our magic techs make Magic Seal Crystals so anyone could control monsters. But they only seal dungeon-made pseudo-lifeform monsters. They’re set to drop from the 3rd floor here. Oh, rank-ups? Sealed monsters rank up by defeating others, and they can evolve too.”

“Good to know. Wait, unsealed monsters don’t rank up by killing others?”

Her casual mention of a destroyed world unsettles me, but I confirm her phrasing.

“Creatures of ‘Ma’ created by Demon God Zazard-sama can’t absorb soul fragments from each other. If they could, weak demons like us would’ve been wiped out. ‘Ma’ beings only get fragments from non-‘Ma’ kills. But a Crystal’s monster, if its master isn’t ‘Ma,’ can get fragments through them.”

“Got it.”

Soul fragments are like experience points, I guess. Same-god creations can’t absorb them, so no EXP.

But a Crystal’s monster, if its master isn’t ‘Ma,’ gets EXP through them, converting ‘Ma’ EXP to non-‘Ma.’

So succubi can’t gain EXP from ‘Ma’ beings but can from humans like us.

If we get stronger, will we become succubi’s rank-up fodder?

No, reaching B-rank can’t be that easy. Even killing 200 D or C-rank humans probably wouldn’t rank them up.

“Hehe, don’t worry. We wouldn’t waste you like that.”

“Oops, it showed on my face?”

She caught me thinking about being used as EXP after the test.

“Of course! It’s fine. If you serve as a test dungeon tester, we’ll keep our promise to return you to the surface. We honor contracts.”

“Good, that’s reassuring.”

Some manga said demons value contracts.