Reincarnated As The Hero’s Daughter: Wait, Why Is My MP Not Running Out?

It definitely wasn’t something that came with the Dungeon, it had been formed here while I was away. This blob-like black slimy thing, also had a very nasty aura, and it seemed to burn through the grass around it, which had withered. It was definitely Miasma.

Miasma is a form of corrupted Mana and Lifeforce, decaying and dark, it often has cursed properties that can sap the life and mana of anything it touches. But it is also immensely powerful, producing a lot of energy.

It is often what fuels Dungeons, and also Demons can wield the power of Miasma, as their Continent is full of that, apparently. I am not saying its evil or something, but its still a dangerous and poisonous substance.

"Alice! Why the heck is there miasma in my Dungeon?!"

"I-I don’t know! We’ll need to first investigate what it exactly is... Ah!"

She suddenly pointed at the distance.

In fact, all around us.

There were these black blobs everywhere across this area of the grassland.

Using my special sight, I was able to see that it didn’t expand past the first kilometer, but there were smaller ones appearing around it.

There was still living plants, but most of the plants surrounding the miasmic blobs were already withered and dead.

"This is serious business I guess... Maybe the Dungeon is under some sort of infestation?" I expanded my Mana Senses to my limits, spreading them across hundreds of kilometers. Slowly, I noticed a large black aura, which I followed.

As I walked towards it, I noticed something, about two kilometers away from my position. It was a large forest, where the Guardian of the Forest, that giant Bear, lived.

Half of that forest had suddenly grown darker; the trees became black and the leaves purple.

There were red and black flowers, and the grass had completely withered.

There were pools of miasma everywhere.

And it seemed that it was slowly expanding to the rest of the Forest!

"So that’s where it is originating from..." I said. "Hm?"

Using my eyes again, I appraised the blobs, I didn’t dare touch them though.

[Miasmic Cocoon (??? Rank)]

A cocoon made of Miasma formed from the overaccumulation of Mana within the Dungeon, which has made it decay into Miasma.

This Cocoon is alive and will slowly move around, consuming life and mana until it grows large enough to break open, becoming a Miasmic Creature.

It is recommended to destroy immediately using purifying magic, anything else will only make the miasma splatter everywhere, spreading further.

"Wait, what?! Overaccumulation of Mana?!" I gasped. "D-Don’t tell me this is my fault..."

Alice looked at the description, then Yggdra, and Naturia, and even Ignatius, Beelzebub, Curse, everyone appeared.

They gasped with me.

"Um, I think this might have indeed been caused by you, Sylphy..." Alice sighed.

"I should have guessed something like this could happen eventually," Yggdra said. "Because you have endless Mana, your Dungeon is always feed with it. Which makes it grow so fast and develop so quickly... But it could also be a weakness."

"When Mana is imbued in excess, it will slowly over accumulate and decay, corrupt itself, and turn into Miasma..." said Alice. "I’m sorry I never told you that this could happen! Honestly I never imagined it happening at all!"

"So does this mean there’s no actual solution?!" I wondered.

"There is, just clean all the miasma," said Curse. "If you do that, and also clean the Miasma Nest, it should be alright."

"But because this is caused by your endless Mana, it might appear again later..." Ignatius nodded. "You’ll have to live with that!"

"No way..."

I fell to my knees in surprise.

I guess having a perfect Dungeon was way too good to be true, huh?

This is caused by being so overpowered.

The worst part is that I actually can’t really regulate my Mana at all, it just keeps flooding the dungeon endlessly.

It makes it grow super-fast but... Now there’s an actual threat that can be born from this "talent".

In the outside world, the Mana I emanate just dissipates into the air and goes back to the world, so there’s no harm.

But a Dungeon, as vast as they are, are closed spaces, so eventually, it would flood, and when it floods with Mana, the Mana would begin to decay if it’s not used anymore.

Yikes, okay then.

"Fine, whatever! Maybe this is a good thing?" I said. "As they say, to find an opportunity within a crisis and stuff!"

"Yeah, I guess it could be a nice opportunity," Ignatius nodded. "However, aren’t you worried about the Arboren? They’re plants so they would be really weak against Miasma."

"Shit, right! Let’s go there while purifying anything!"

I wanted to go purify the nest right away, but I was more worried about the Arboren. The Robots should be fine, they’re in the sky and are made of metal, virtually immune to Miasma.

"How about this...?"

I combined the power of my skills, my Halo, and my developing Magic Circle together to form beams of holy sunlight from my fingertips.

"{Holy Purifying Sunlight Flash}!"

FLASH! FLASH! FLASH! FLASH!

The blobs of miasma dissipated, exploding into ashes one after another, I was working hard here, cleaning as much as I could while making my way to the village.

Curse, Beelzebub, Glutton, and Violet were eating the blobs, they seemed to be immune to their negative effects and could consume them entirely, so they helped too.

And then...

Ding!

[The {Dungeon System} is happy that you’re finally back, it has been whole year since your

Last visit!]

[The {Civilization System} says that your help is required at the city of the Arboren.]

"You guys are here, just what happened? I thought you would keep my dungeon tidied and

Clean?" I wondered. "And my help? Is it really urgent?"

They didn’t answer after that, so I guess it’s really urgent matters.

"Sylphy! Over there!"

Alice pointed at the distance; the village was finally within sight.

However, the scene was more dreadful than I imagined.

Almost a hundred pitch-black, slimy creatures were swarming the walls.

And all available warriors were fighting them, trying to push them away.

"Sylphy! Use my powers!" Ignatius said.

"Gotcha! {Draconification}!"

I leaped into midair, Ignatius fusing with my Dragon Heart, as I flew towards the Miasmic

Creatures.

CLAAASH!

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