Chapter 1
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Translator: penny
Chapter: 1
Chapter Title: Me. Demon King. Advent.
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I've loved decorating my house ever since I was a kid.
Filling every corner of the place with stuff wasn't anything special, but it was more than enough to satisfy that empty feeling inside.
My own room? I was over the moon when I finally got one.
Decorating and filling it up became my favorite hobby.
Once I got older and discovered games, I dove headfirst into city-building sims where you raise your territory.
Become a lord and grow your domain.
Become a mayor and develop your city.
Become a pirate captain and upgrade your ship.
Become a president and build your nation.
Then I stumbled upon a classic ero game called Dragon that Builds Dicks, where you run a dungeon. It was a whole new world.
A dungeon!
Not a city, not a domain, not a nation—but a dungeon management sim!
I never saw it coming.
My first dungeon-building game was a blast.
It was a completely different beast from other territory sims.
Setting traps, placing monsters, designing unbeatable mazes.
Planting tempting items to lure heroes in and dazzle them? Pure fun.
Stopping heroes from conquering my dungeon gave me a fresh thrill.
Every time their graves piled up and my dungeon grew stronger, I got this weird rush of pleasure.
Yeah.
It was fun.
From then on, every game I played was a dungeon builder.
Grow your dungeon, develop it, make it the best!
It felt like the goal of my life—as if I'd played dozens of them for that very reason.
That's how it was supposed to be...
"What the hell is this?"
Who could've guessed my hobby would lead to this?
Me, becoming the Demon King?
Fuck off?
I'm screwed.
Like, royally fucked.
No matter how many times I think it over, this is fucked.
It's like the opening of some famous novel.
I used to think, "Damn, what killer setup," while reading it.
Now I regret it.
There was a reason I kept yelling "fucked" over and over.
How desperate must that guy stranded on Mars have felt?
That's me right now.
Dizzy as hell.
This whole situation I'm in.
"Where the fuck am I?"
Unfamiliar ceiling.
Not just unfamiliar—it's from a completely different architectural style.
Not a hospital, not school, not my house, not even my parents' place.
Yeah. If this were Korea, I wouldn't be saying this.
One phone call, and I'd know exactly where I was.
Aaah, long live Korea's cell network!
But no. The ornament on the ceiling told me that much.
A chandelier with an ominous shape that chills your spine just looking at it.
Gloomy air that makes your lungs feel cold with every breath.
And.
Swooooo...
Suspicious wind sounds coming from around me.
What the hell? This place!
Where am I?
Tell me, Bixby!
And on top of that.
"This isn't my voice."
Deeper and more resonant than my normal voice.
Echoing like I'm in a cave, with skin that's not its usual flesh tone but a pale bluish-purple.
Skin that's bluish-purple?
Not black, not white—bluish-purple?
That's not human, right?
One more reason I'm fucked.
I'm not human right now.
I don't know why.
I was just happily gaming when I blacked out and woke up like this.
I racked my brain, trying to remember the past.
Didn't some ancient sage say reflecting on the past reveals your current state?
I'd finally gotten my hands on a new dungeon builder and started it in a great mood.
The game was called Ero Dungeon Master.
It had a 19+ ero game label, but so what?
The classic masterpiece Dragon that Builds Dicks started out as an ero game too.
For a dungeon sim fanatic like me, that wasn't much of a hurdle.
I booted it up excitedly.
The game was solid.
Dungeon management was decent, and the 19+ ero scenes were pretty good.
Not that I paid much attention.
Aside from the heavy focus on ero traps and sex dungeons, it wasn't bad.
The traps were detailed and well-designed; even without the ero stuff, the monster variety and magic added real appeal.
Best part? The protagonist, the Demon King.
The core of the dungeon, wielding absolute power from the center.
Game over if he dies—the most crucial character.
Early on, he crushes foes with overwhelming strength, blending dungeon defense with RPG growth.
A pretty solid combo.
Yeah, up until the early game, it was great.
But past mid-game, the almighty Demon King turned into chum, and wizards wrecked the dungeon, halting all progress.
And me?
Dungeon sim addict that I am? I rage-quit halfway.
Fuck that.
Throwing unbeatable enemies at me nonstop—what am I supposed to do?
Yeah.
Early balance was good, but mid-to-late game dragged with broken pacing and balance.
Ero scenes were okay, but dungeon building mattered more than gawking at them.
Why watch ero when I could level up more?
Just some fanservice, whatever.
I skipped it.
Left with a collapsed mid-game balance.
I finished it off with a 1-star rating.
The one dungeon builder I never saw the ending for.
You're legendary.
You made history with me.
All I ever saw were failure endings like:
-That dungeon was conquered by the heroes.
Hero conquest endings only.
Damn heroes everywhere!
This many? Really?
Even if you wanna pad playtime, this is too much!
A Kingdom hero, B Kingdom saintess, C Kingdom knight captain, D Kingdom whatever, E Kingdom thingy, F Kingdom sends a dragon—what was it? A giant too.
The in-game secretary even mentioned a Z Hero from another world.
That's when I quit.
Probably some cheat-powered final boss. How the hell do you beat that?
Shitty fucking game.
Why shove in a Z Hero isekai'd with cheats from another world?
Like you don't want anyone clearing it.
That 1-star and crashing into bed—my last memory.
When I woke up...
"I've become the Demon King?"
I muttered, staring at my reflection in the water.
Bluish-purple skin, two horns on my head, yellow eyes with vertical slit pupils, ripped muscles.
Anyone could see: Demon King.
The Demon King from that game.
The protagonist of Ero Dungeon Master. The mid-game chump who bites it for a million reasons.
"Is this even possible?"
Dunno.
Guess it is.
Otherwise, I wouldn't have woken up as the Demon King.
Pinched my cheek thinking it was a dream.
"Ow ow! Fucking hurts."
It hurt like hell.
The hand of the so-called Absolute Being.
Too damn painful.
This is reality.
Last shred of hope gone.
And right in front of me...
The helpful system popped up.
Wow, amazing. A system window showing my name and stats. Truly astonishing.
Think I'd say that?!
"Who the hell you mocking?"
And why's my name blank? Huh?
My parents named me right after I was born!
Born a proud son of Korea, with a solid three-letter name.
My name is—
Huh?
Wait, what...
"Huh?"
What?
I can't remember.
My name.
The name my parents gave me.
The three letters I'd been called my whole life—gone.
Like thick fog in my head; trying to recall it just muddies everything.
What is my name?
What did I used to say?
"What did you do to me?"
I glared at the system window.
No answer, naturally.
1-star rating a dungeon game and get isekai'd into its Demon King?
What's the point?
I couldn't know. Didn't wanna know.
Just send me home.
Give me my name back!
Shit!
......
Fine. Whatever.
Do your thing.
I give up.
Don't know why I'm the Demon King. Don't know what this system wants.
All I know is early-game Demon King stuff: tutorial progression, growth mechanics.
Roughly from playing the game.
Now a door should open...
Screeeeech.
"My Lord Demon King, are you awake?"
In comes Yulia, the Demon King's secretary.
Pointed ears, porcelain skin, silky black hair like fine silk, ruby-red eyes that match perfectly, a seductive beauty that could tempt any man, massive breasts straining against her uniform shirt. A black miniskirt fluttered, accentuating her hips.
And around her waist as she looked at me...
Flap flap.
Tiny bat wings wagged gently.
Whoa, I'd only seen those in hentai.
Can she even fly with wings that small?
She shook her disproportionately small wings relative to her body.
Her hips swayed along with them.
She'd introduce herself, then explain dungeon ops, monster and trap placement, enemies, who I'd fight.
"Pleased to meet you. I am Yulia, your secretary. I know you're probably out of sorts after waking, but could you spare me some time?"
Succubus secretary.
Aide who assists the Demon King and guides him on repelling foes.
I stared at her.
Succubus Yulia.
I replayed the game a ton, but amid all the ero scenes, nothing with her.
No options even.
Like she wasn't romanceable.
'For someone off-limits, they put way too much effort into her.'
Game art, pixel sprites—same deal.
Look at her now.
Gorgeous, right?
If this were a harem game, my dick would be rock-hard by now...
Wait. This is an ero game.
"My Lord?"
Yulia's eyes widened, glancing at my crotch.
There, my massive cock had sprung up stiff as a board.
Was I not wearing pants?
"Sorry. Got excited for a sec."
"Getting aroused by a succubus is natural. As expected, you're already prepared, my Lord."
"What're you talking about?"
"You're gearing up to ravage the humans at the mountain's base, right?"
"Not even close."
"A natural reaction, then. You're still adjusting your power, so it's to be expected."
Yulia nodded, drawing her own conclusions.
Eh, no point correcting her. Easier if she assumes whatever.
That's when it happened.
Why didn't you do it? You made her so irresistible no one could hold back.
What the—?
Before I could process the sudden message...
Succubus Secretary—Yulia Fuck Quest
You never figured out the real way to clear the game! Here's a helpful quest just for you. Fuck Yulia and level up.
🎁 Reward: Level Up
What is this shit?
Fuck Yulia?
Failure: Demon King dies.
You fucking kidding me?!
Are you serious right now?!
As a webnovel reader, I knew the deal.
If I ignore this system's quest, I'd really die like the penalty says.
No choice, then.
Sigh. Wasn't planning on this, but...
"I got hard because I wanna fuck you."
"Pardon?"
Yulia blinked her scarlet eyes at me.
"Spread 'em, bitch."