Enthusiastic walk [Part: III]

"... We will engage the enemy, just don't let your guard down. And if you can kill them easily, go straight for the kill no questions asked."

Koyomi commented as he use his Divine protection of Aim-Bot, combine with his enhanced senses, and also his night vision, to get a clear view of the target.

Meanwhile, Helena commented.

"This servant understands... An appropriate battle stance will now be taken to intersect the incoming target and render them eternally silent if said enemy chooses immediate violence."

Koyomi also readied his gun aiming toward the enemy, his sight was locked onto the target.

But after it came closer, or approximately twenty meters away from him and Helena; he began to feel an uneasy feeling, it wasn't fear but more like danger sense, weird enough he felt like the entire tunnel became a hazard of sorts.

And that's when both got a clear view of the target and also hear the target's voice.

"You mean to tell me, that all 700+ of my children, each capable of destroying a small village on their own, got no diff by only two people, hehehe... Well, that can only mean one thing, I presume you are a Hashira then, if that is the case then it is my lucky day... If I kill you guys and present your head to the Lord I will become an Upper moon, or at the very least the top position for the lower moon's hierarchy hehehe."

"Oh, god your ugly as hell!"

Koyomi said on impulse at the sight of the Demon before him, after all, who can blame him, he knew some Demons from Demon Slayer were cool looking, while others like the hand Demon were ugly as fuck. This one was one of the latter.

She was a large Demon, enough to be considered a giantess by normal standards, she was at least, 7"9 in height, and her body was very muscular, so much so her arms were thicker than his torso.

Her skin was a light red, while her chest was probably the largest set of breasts he has ever seen or come across in his entire life; in this case with an ugly face competing with the anus of the Grinch, and a body build like a minotaur on steroids, it was safe to say even with the bust as large and as firm as hers it did not suit her.

Her face was humanoid, but she had the nose of a dog, and her teeth were well... piranha-like for a better lack of words, sharp, small, and pointy. She had long straight dark grey hair with a large black bow neatly placed at the back like some kind of hair piece, while also having bright yellow demonic eyes that were shining menacingly in the distance, and on the chest below her neck, but above her cleavage, there was red and green plant like a seed that fuse with her flesh.

Meanwhile. On her head was a large fleshy horn with a red and black exoskeleton over it, while behind her she also had two large horn-like appendages that were the same color as the one on her head, she also has a large demonic centipede behind her as a tail. And to top things off she wore an evil-looking dress that cover her whole body; it look like it was made from the feathers and fur of some kind of monster, as it was colored in an ominous pink and black.

"Hahaha... Humans are so blind, how can you say such mean things, im am beauty at its peak, the embodiment of the beauty of the world, I am the soon-to-be queen of the Demon world, Lana Aurora."

The prideful and ignorant monstrosity said with such a serious face that Koyomi himself was shocked to find out that she seriously believe she is the incarnation of beauty.

At this point and time, Koyomi just asked?

"I presume you are the leader of these things right?"

"Of cou...

*Slice*

However, before the ignorant demoness could finish talking, Koyomi took the liberty to one-shot her by using the Nichirin blades and using his full speed to behead her.

By doing this, he breaks the wind barrier, causing a loud sonic boom that echoed through the sewer tunnels.

"... Well this is exactly why it's not good to let your guard down, and by the way you can stop playing dead, I might be fast but I didn't even feel any resonance coming from your neck."

At these words, the entire tunnel began to shake, as the voice of Lana could be heard from every direction and the headless body, and head of Lana began to turn green flames that were slowly absorbed by the tunnel.

Around Koyomi and Helena, it was as if reality was being distorted, seeing the walls start to become fleshy, as thousands of mouths manifest all around.

"Stupid Hashira, you lost from the moment you came in here, do you have any idea of how long it took me to prepare for the arrival of your kind... That promotion is as good as mines."

"Although I have to admit you are strong, if this was me four months ago I would have died the moment I come to face you, but im not like other Demons... You see... I have a habit of preparing for any battle ahead of time, and you, my unfortunate little cattle, are already four to five miles in from the nearest exit, all manholes are gone thanks to my Blood Demon Art... Essentially I am the sewer of Lugnica hahaha."

Meanwhile, Koyomi was surprised, so much so, he said.

"Well, you look at that, a demon that is actually using its brains for once... I don't know if I should be terrified or impressed... Then again it would explain why I smell rotten flesh and blood the moment I came in here, you naturally smell like a corpse, and since im technically in your body now it would explain a lot... Tsk, this is going to be troublesome indeed, Lugnica is easily the size of an entire continent."

Lana laughed at Koyomi while Slandering even further.

"HAHAHAHKYHAHAHA! STUPID LESSER LIFE FORM... You have no chance, so to tell me what are you going to cut with that sword of yours, there is no head to cut, there nothing to attack, you are essentially in my domain, my world, in here I am God!"

With those words said, all the mouths that manifested in the tunnel began to open up, and the entire tunnel began to be engulfed in bright green, the temperature increased like crazy, it was at this moment Koyomi knew, he had his work cut out for him.

"Don't tell me that she is going to... Ah shit... Think Koyomi how can doge this."

It was at that moment Koyomi began to think, using his brain to its full capacity, this was an attack that you can't dodge.

Then it hit him, he instantly shouted out to Helena.

"Helena over here now."

Helena obeys and immediately runs toward her master, and at that very moment.

The echoed and layered voice of Lana screams out aloud.

"¡Die Hashira!"

"Blood Demon Art: World of Inner Beauty"

Helena's hands stretch out to her master, while at the same time, hundreds if not tens of thousands of powerful green acidic fireballs shoot out of the mouths of the tunnel, engulfing the entire sewers.

What happened next should have been obvious, a loud explosion comparable to that of many nukes hit the entire tunnel, as the esoteric flames and explosive firepower hit everything within an omnidirectional range and radius, and the blast range and sheer power from this attack were enough to destroy Lugnica a hundred time over if it wasn't being contained underground.

What made this attack even more dangerous in terms of destructive power was the fact that it had nowhere to escape, the narrowness and complex maze formation of the attack spread everywhere in an instant, destroying and vaporizing anything in the vicinity.

The entire Lugnica above experienced an earthquake so powerful that the readings within the Hoshin space station, dub AH-Echidna3, were picking up a strong reading within the sewers of Lugnica, showing that an earthquake with a Magnitude of 9.0.

Above the surface, the earth was splitting, as giant skyscrapers were falling like dominos, at this point and time thousand of people already met their end; bridges were being tossed around, and cars were colliding into each other, the screams of the people could be heard from every direction.

However, moments after the incident took place, at the very surface or in the middle of the street, a certain red hair; blue eyes, Ikmen-level appearance with a large sword to his side, dressed in the Lugnica knight attire got a message from HQ.

"Reinhard we got a scenario 67 on our hands... threat Level Prometheus, casualties have ready exceed 30,000+ and counting according to AH-Echidna3... Deal with it immediately."

Said the voice of a man coming from the other side, to which the sword saint replied.

"Yes, Yes I'm on it, is it the cult again?"

"The probability and likeness of that are not zero, but so far no traces of Miasma has been detected within the area that is worthy of our attention, the cause, however, has been tracked back to the sewers as multiple energy reading was picked up by our satellites all originating from there, however, we lost all camera feeds down there... You know your orders soldiers deal with the threat may the blessing of the dragon be with you, Glory to Lugnica."

"Glory Lugnica."

Reinhard Van Astrea replied with a saddened look but did it out of courtesy anyways.

Meanwhile, as Subaru, Emilia, Rom, and Felt, were struggling to stand up due to the powerful earthquake Reinhard was casually standing as if he didn't feel it at all, he was holding the severed hand of the bowel hunter who had escaped.

Recently Reinhard was on a secret mission to find the remaining two king candidate for the throne of Lugnica, and by the will of the dragon he found the 5th candidate, only one person missing, and who that one person was no one knew.

However, he couldn't just leave Lady Felt there, but he also couldn't disregard the orders from HQ despite him being on his day off, especially seeing this was an emergency, as the entirety of Lugnica was at stake.

Reinhard sighed once more, he casually walk to the center of the slums.

He then casually raises his feet, and like the monster if not the walking cheat code he is, just stomps the ground so hard with the limited effort of his power, that he managed to rival the impact force of a magnitude 9.0 Earthquake, this, of course, cancels out of the shock wave below, bringing order to Lugnica once more.

Meanwhile, Subaru had a shocked look on his face; the same could be said for Rom, but he had to deal with this problem immediately.

So he looks at Emilia and bows, even begging her as he said in a respectful tone.

"Lady Emilia I know this might be bold if not outright disrespectful of me on my part; but can I ask you the favor of watching Lady Felt, by taking her to Lord Roswaal's domain? And I will come to pick her up the following day, you see an emergency has come up that needs my immediate attention, and I can't take care of Lady Felt, while also doing my mission at the same time."

The kind-hearted Emilia agreed as he said.

"Aw. Sure Reinhard no problem; you already help us so much. I don't see why I can't return the favor in this regard."

"Thank you so much, Lady Emilia, and Subaru if you are serious about the training we discussed, I will come and see you when I get my next day off."

At that moment Reinhard took off with great speed to look for the nearest manhole, his next location the sewers.

****

(A/N): Hey all I hope you enjoy the chapter, as you all should have guessed by now, due to the world being a fusion of five worlds, to achieve balance, and make things kind of fair, Muzan Demons are a lot stronger in this fic, why well it's simple Od Laguna blessing, Magic, and technology, well this was fun to write, either way, have a great day or night, new chapter coming soon, oh and what do you guys think about my original Demon, leave a comment and review, writing not the best, the plot is still kind of mid in my opinion, and I don't mind criticism, but apart from that take care im gone peace ✌️