A Demon Lord's Tale: Dungeons, Monster Girls, and Heartwarming Bliss

"Guaaaaaaaa!!

Black Dragon Guoga was swooping around the ground in pain attacking his own body.

Where it is slashed, it has a fever, and the crushed eye tells of severe pain that erodes with a jerk.

- Black Dragon has hardly ever experienced anything called pain before.

Speaking of enemies, he was a weaker miscellaneous fish than himself, a stomping bug, and thus hardly ever had a proper attack from his enemies, etc.

It was the first time I had ever been born with a serious illness.

"Hung... you're not a man of sorts"

"Grrrrrrrr!"

The Lord of that voice laughing at itself, Black Dragon turns his gaze all guillotine and shooting.

There he is, sending cold eyes at the Black Dragon and a grin at his mouth that makes him look like a child fool - Heilong, Lefisios.

"You made fun of the scattered Yuki, but if you get hurt yourself, Peppy will feel sorry for you. The Dragon King will hear you."

"Shut up, Lefisios!! Besides, he already killed him!! I crushed your precious worm!!

I ate my arm and ate its wings. He's falling straight into the earth, checking with his remaining eyes that he's stopped moving.

He's not moving anymore.

The truth is I'm going to tear his whole body apart with my fangs and eat everything as it is, but the distance went crazy because I got one eye crushed and it turned out... but still, it wouldn't make a difference that I killed him.

Yes, without fear, it was a black dragon provoking Heilong - but Refi...

Even if they say so, I won't stop smiling in my mouth.

"Hmm? Who said who killed who?

"What... ugh!?

Guoga turns to Heilong's words in a hurry to the man who was supposed to have crushed Ba and his neck - his expression comes with amazement and fright.

- I stood (...).

The man who I thought had definitely killed, at some point, stood up.

The man, worn out all over his body and so injured that he can no longer identify himself as a corpse, is coming this way by turning his weapon around with his mouth, putting his foot forward toward the Black Dragon, and making sure to step by step.

He's coming with a weapon to kill the Black Dragon.

- How can you stand up!?

I don't care what you think, it's already fatal.

Even being able to move, that's crazy.

Until earlier, he drank something like a potion and seems to have recovered, so I can still tell, but now this man hasn't drank potion to see from the condition of the wound.

Still - it's moving.

"There is no reason for the other party to die because of the Lord's attack."

The words unleashed by the dragon echo through the black dragon's brain.

- It's abnormal.

Something's wrong with him.

I feel the illusion that my whole body will be swallowed by the different air emitted by the man who was insulting me with scatterworms.

So, when the Black Dragon was watching over the man - the man and I met each other.

Nitari and a man laughs.

Black Dragon felt something that made his spine colder on the man's floating expression, and when he realized it, he was retreating one step later.

"Ku, don't come!!

Black Dragon shouts so unexpectedly, he waves his tail at the man.

When the man ate the offense decently, he bounced a few times, rolled to the ground - and after a while, rose muckled again.

"Huh!!"

As if you haven't eaten an attack or something.

Poke your knees and stand up, as if nothing had happened.

To that sight, a zowari and something cold run on the spine of a black dragon.

- Understood.

He's probably immortal.

Like an undead, no more than an undead, killing or not dying, it's a monster.

- This man is dangerous. It's too dangerous.

Black Dragon instinct sounds the alarm.

Here and now, this man must surely hold his breath.

But in a half-breed attack, I'm sure you won't be able to come back and stab Todome again and again.

If it is - it is the biggest and most powerful magic for the Dragon Clan to use, The Roar of the Dragon.

Erase his existence without leaving a piece of flesh, and erase it from the world.

I have to write it off.

The Black Dragon, who made that decision, accumulated magic in his mouth and breathed heavily - the grali and vision swayed (...) and fell straight to the ground (...).

'Nah... ugh!?

"Uh, finally, fallen,"

I smile at Nitanita and him when I see the fucking dragon that has ever made me a scattered borocaust collapse sounding like Dosin.

Fucking dragons seem confused, looking around the glue trying to make sure they don't know what happened.

His mouth doesn't seem to move well either, and Lu Rhythm hasn't turned.

"hehe... it went well, you see"

So far, it's worth the guts to put up with the pain that makes me want to cry anymore.

- It's easy for him to fall out of the blue.

Because I (...) designed it to be so (...).

The Dragons are awesome.

The scale is so hard that the blade cannot pass with a lined weapon, the movement is so fast that it cannot be followed with the eyes, it has a body that can withstand even at super high altitudes at leisure, and it is possible to say things to mighty magic and unleash magic of power like an asshole.

But - the Dragon Nation, the most powerful creature of all, is also in the realm of life (...).

Breathe just like me, sleep just like me, nourish just like me.

I know that very well as I live with Leffi.

That's why I was setting something that would be a universal weakness if it were an organism, with a trap against the air near here (...).

- Carbon monoxide.

I was manipulating the function of the dungeon and changing the percentage contained in the air.

If I'm the law, and I'm in this dungeon where I'm the world, that's also possible depending on my perception.

This world contains a mysterious substance called magic vegetables in the air, but the other components of the atmosphere are almost close to those of previous life.

No, maybe it's something else, but there are also substances here that are close to the ingredients in the atmosphere of previous life, in short, things like oxygen and carbon dioxide, and we know that they have about the same properties as those of previous life.

When I taught Iruna and the others about the combustion experiment, I found out about it.

Carbon monoxide, even in previous life, is known as a familiar but powerful toxic gas.

If its concentration exceeds 0.15 percent, the organism develops severe dizziness (dizziness) and nausea and becomes unable to stand properly.

It is a very horrible poison gas that, when it exceeds one percent, instantly vanishes consciousness and leads to lethality as it is.

Such a fierce poison to organisms is also poisonous to the Dragon Nation, the most powerful species in the world, and I took a bet - I beat it.

Even "The Roar of the Dragon" tried to stab me in the face, breathed heavily, and took a lot of carbon monoxide into his body, and the fucking dragon finally fainted.

Next time, shall we even call ourselves Demon King Gambler Yuki?

I knew that what I used was carbon monoxide because he didn't have the sensory skills in battle so far, but if I sprinkled normal poison gas around here that could be noticed by boulders because of its smell, etc.

In that regard, if it is carbon monoxide that is tasteless and odorless and has no color, it is difficult to realize that it is beginning to drift around a lot invisible.

Nothing would be more suitable to avoid being noticed as poison gas.

The reason I've been using all the explosive stuff in the dungeon trap is also to increase carbon monoxide generation from incomplete combustion of oxygen, even for trappers, and to make it harder for them to notice that I'm manipulating air components.

Well, Refi quickly realized that I was working on something small, and he was dealing with it with something like an air protective wall around himself... this fucking dragon, until the end, didn't realize that.

That's the thing.

I'm safe because I'm also using the original magic wind to create a layer of air around me just like Leffi did.

I couldn't unleash magic the whole time because I was using it... but didn't he wonder about it?

After all, you're not paying enough attention, you dragon.

Go to the afterlife and come back out.

With any luck, you might get a second raw, like me.

- And when I can speak again of the pattern of sin, I try to drag the body of the limit quite a bit more, moving forward step by step, towards the Black Dragon.

'- Huh! - Huh!

"What are you talking about, Wahiko?"

- Oh, this. Well, I don't know what I'm talking about either.

Laughing furiously at the guilt, the fucking dragon looks at me with a frightened look and roars so hard to tell him something.

But that voice doesn't sound easy to me.

Even if it sounds like it, it's too late.

If you were more reasonable, it would be a different result... No, there isn't.

Well, don't worry.

Your body... I don't want it to be material, so I'll use it all as a DP to enhance my dungeon.

Don't worry, die.

- Eventually, I stood in front of him.

"Hilarious, Fuhi-ryu"

At the same time, he waved the sin of his mouth down his neck with all his strength.

His scales can't hold back the sin that seems to have increased sharpness by sucking the blood of the fucking dragon himself, and the sinful body slashes deep into the meat -.

- And the neck, it was broken.