Demon Progenitor Development Project

Shugo is very busy. Not only does he have to help Muzan become stronger, but he also has to contend with the forces in the shadows and manage the demons.

The old head of the Fujiwara family was quite dedicated, even including his own death in the calculations, directly framing a large group of his political enemies and causing them heavy losses.

Shugo, who originally didn't intend to turn the Fujiwara clan patriarch into a demon: ...

(As everyone knows, villains don't keep their promises.)

The old head of the Fujiwara clan got his wish and was promoted to Fujiwara the Old Demon, continuing to manipulate the Fujiwara clan from behind the scenes and stir up trouble.

Then came the issue of developing a breathing technique for demons.

This matter has finally made some progress.

At least Kokushibo's talent was at the pinnacle of what a normal person could achieve.

Furthermore, Shugo also joined the development, and by utilizing the supreme state of harmony between man and nature, he accelerated the progress.

However, the difficulty of this breathing technique has been developed to be increasingly higher.

The higher the level of the cultivation technique, the more difficult it is to master.

This "Demon Breathing Technique" should more accurately be described as "Cellular Breathing Technique".

The original breathing method relied on lung respiration, which is suitable for humans.

As for demons, most of the high-level demons have the skill of mimicry, with Muzan being the most skilled at it.

Since he wasn't a "nine-year-old fish" (a person who is not very intelligent), Shugo naturally knew the cell knowledge he had learned in high school, plus the introspective effect that came with the unity of heaven and man.

Through observation, Shugo discovered that the essence of demon mimicry is to change the body and control cells.

With this foundation, developing cellular respiration technology seems to have a lot of advantages.

result……

completely annihilated.

The precision required for control in cellular respiration is too high.

Therefore, so far only Hiiragi Ichiki has successfully completed this breathing technique by achieving oneness with heaven and man. Muzan and Kokushibo can only barely master half of it and are unable to operate it completely.

This half-power of amplification surpasses even Kokushibo's own Moon Breathing.

Seeing that Shugo had completed that impossible breathing technique, Kokushibo became somewhat anxious.

In Kokushibo's view, the mystique of this cellular respiration technique was even more excessive than that of the Sun Breathing technique.

He knew how to use the Sun Breathing technique, but he just couldn't produce the same effect as Yoriichi. As for cellular respiration, he hadn't learned it at all.

The martial arts prodigy, or "Martial Arts Master" for short (?My Dad?), Kokushibo, decisively went to seek instruction.

If one can humbly seek guidance from Yoriichi, how can one not seek guidance from one's current lord?

Shugo, faced with Kokushibo's request: ...

Ah, this?

Hiiragi is suffocating, how do I teach him that?

He cheated by achieving harmony between man and nature!

How did things end up like this?

Infinite City, lower-level battlefield.

The thrifty and hardworking Shugo specially ordered Nakime to build the battle arena. He really felt bad about the houses that were damaged every time, because that cost a lot of money!

It's best to avoid such avoidable costs.

Shugo stood in the center of the arena, sword in hand, looking at Kokushibo, who had six large, distinctive eyes.

With his face completely covered by six large eyes, Kokushibo's expression was unreadable. He wanted to personally experience the difference between himself and that level.

Kokushibo's first move was completely unreserved.

—Breath of the Moon, Fifth Form, Lunar Calamity Vortex

Before Kokushibo could even move his demon blade, countless slashes suddenly appeared all around him.

Shugo was positioned right in the very center of the slashing circle.

Kokushibo observed secretly.

Even a regular person, like Zhu, would be quite embarrassed by this move.

The next instant, Kokushibo opened all six eyes wide. What was this?

Shugo dodged all the attacks as if taking a leisurely stroll, occasionally turning to the side, leaning forward, or taking small steps.

That posture was far too relaxed and casual.

"So slow," was Shugo's first thought when he saw Kokushibo's slashes. To Shugo, those slashes were in slow motion, so slow that even the slightest distortion of the air was clearly visible.

Even the final position of the slash was anticipated.

Since that's the case, why not take the opportunity to show off?

Shugo dodged all the attacks, exhaled, and realized it was the first time this cautious player had ever pulled off such a thrilling maneuver.

so fun!

That's exciting!

It was indeed exciting; it successfully aroused Kokushibo.

At this moment, Shugo was only an arm's length away from Kokushibo, so close that Shugo could easily swing his sword and cut Kokushibo.

Kokushibo also took the opportunity to create distance and used his newly developed breathing technique.

Breath of the Moon, Seventh Form, Mirror of Calamity, Moon Reflection

Kokushibo's originally normal demon blade has grown more branches like a tree, but these branches reflect the sharp, cold light that a sword should have.

The purple-clad warrior retreated in an instant, wielding his ghost blade and unleashing multiple sword energies at high speed, cutting several marks into the earth.

Hiiragi was already waiting in the gap between the sword energies, looking quite relaxed.

Kokushibo remained silent.

when?

No, did I just not notice?

Even in a transparent world, it wouldn't be this fast? The other party clearly found a position before he even retreated.

This……

Kokushibo frowned, his imposing presence growing even stronger.

Hiiragi, on the other hand, seemed quite relaxed.

Kokushibo wasn't too disappointed; this was expected. He calmed himself down, focused all his energy, and decisively used the moves he knew best.

—Breath of the Moon, First Form, Dark Moon, Night Palace

A powerful slash came toward Shugo.

Shugo raised his hand to catch it and then pressed it down on him.

The moment their weapons clashed, Kokushibo was forced to his knees by the immense force he received.

Why so close?

Because Kokushibo's demon blade broke.

Kokushibo: !!!

His demon blade was meticulously crafted by him; the weapon that Shugo used was only of decent quality, not a legendary masterpiece.

How did his demon blade break?

When faced with this question, Shugo replied that great strength can cut through a sword.

The boost to physical fitness from cellular respiration is terrifying; it's practically doubling the effect.

Shugo swung his weapon across, hovering it near Kokushibo's neck, before retracting it.

Let's stop here.

"That's what Hiiragi said."

"I cannot tell you how to achieve the state of harmony between man and nature, because I took a shortcut. You can only experience it for yourself."

Shugo placed his weapon on the weapon rack and then spoke.

"My advice is to never forget your original aspirations."

Don't let yourself get so ugly! Upper Moon One - Kokushibo!

After Shugo left, Kokushibo silently picked up the broken demon blade, silently healed it, and then sat there in a daze.

What exactly is the state of being in harmony with nature?

Was that the last time he saw Yoriichi like that?

The tavern in Kono Castle was not the last time he met Yoriichi.

Yoriichi seems to have reached an agreement with his new lord to find the mastermind behind everything.

One day, Lord Shuuga suddenly came to see him and said:

"Yoriichi is dying, do you want to go see him?"

Kokushibo, who was training and hoping to avenge his defeat, remained silent.

Finally, Kokushibo nodded and met the elderly Yoriichi.

His hair was white and his face was full of wrinkles, but his strength remained as strong as ever.

Feeling the pressure: ...As expected of the son of God, even time cannot defeat you!

At that time, Yoriichi was like a plant, completely integrated into the world. Could this be the secret to achieving harmony between man and nature?

*

From the Sengoku period to the Edo period, Shugo didn't always stay on this small, dilapidated island.

The gold and silver mines on the small, dilapidated island have been almost completely mined out thanks to the efforts of the demon laborers.

With money in hand, Shugo has no intention of letting his gold and silver rot in his hands.

At the end of the Warring States period, they were able to catch the tail end of the Age of Exploration and go to the Americas to make a name for themselves.

The little island is too small.

Hiiragi has no intention of staying here for long.

As times change, ghosts will find it increasingly difficult to hide themselves, and their living space will inevitably shrink. Once cannibalistic ghosts are exposed to the public eye, they will inevitably become the target of everyone's condemnation.

At best, they are eliminated; at worst, they are used directly as experimental subjects.

What? A creature that can live forever and has amazing superpowers!

Quick! Get the cannibal onto the lab table!

We also want immortality! We also want extraordinary abilities!

Human nature is inherently greedy.

Shugo had no doubt that this would happen, so he needed power, a large enough power to act as cover.

America is a very nice place.

If you have money, and lots of money, you are God walking among men.

Manipulating America's politics and publicly donating money to voters are all standard practices of the America Foundation.

The Age of Exploration was full of opportunities. One could forge a British identity or even transform a British person into a company and go to the Americas to explore, thus laying the foundation.

Hiiragi had done this more than once.

Eggs cannot be put in one basket.

Ren Guang was sent to America to oversee the business there, which kept Shugo extremely busy.

Muzan's arbitrary standards resulted in a wide range of quality among the demons.

Okay, so it's like the Falcon, an elite character card with its own skills.

The worst ones are completely useless; they can only be used for mining.

Have you finished mining?

Then let's go and contribute to the Demon Slayer Corps' performance!

We can't let the Demon Slayer Corps, the mastermind behind it all, be idle and give the other side the opportunity to cause trouble for him.

Shugo, who still had a tiny bit of conscience left, gave these useless ghosts a chance to be remade.

Go to class!

He personally searched for ghosts to compile so many books, even sacrificing himself in the process; it absolutely cannot be in vain.

(Kuroshibo, obsessed with becoming stronger, demanded that Shuugo fight him regularly to train himself before he agreed to write the book.)

As for not being able to learn it, well, then go die!

He doesn't keep useless people around!

*

In the Infinite City, on the seventh underground level of the research institute, in a small research room.

"Tamayo, a ghost is looking for you." A ghost with a single horn and blue skin knocked on the door and called out.

"thank you, I know now."

Zhu Shi politely thanked her.

The blue-skinned one-horned ghost yawned, ignored the thanks, and headed straight for his research lab.

Most ghosts who are researchers have this personality: they are indifferent to things outside of their research and are completely absorbed in their own world.

He wouldn't have bothered passing on the message if it weren't for a terrifying ghost offering him a reward.

And Tamayo? I have absolutely no recollection of her. She's probably a ghost who hasn't accomplished anything. I really don't know why the adults didn't drive this female ghost away!

Zhu Shi put down the prepared medicinal herbs and left in silence.

The research institute is closed to the outside world, and researchers do not need to go out. All the basic living facilities needed are available inside.

"Good day, Mother."

The grown-up Yota is different from when he was a child. He is refined and gentle, and looks more like an aristocrat than a commoner.

He smiled at his mother and handed her a bottle of blood.

This is a bottle of diluted blood.

Tamayo looked at the child she no longer recognized with a complicated expression, hesitant to speak.

"This rare blood is of very high quality; it tastes like wine."

Yang Tai introduced it with great interest.

"Yota." Tamayo interrupted her son, no longer looking at the bottle of crystal-clear diluted blood, nor thinking about the bloody story behind it.

"Do you really want to continue like this?"

Yang Tai's smile faded, and he countered, "I think this is fine. Must we remain as impoverished as before? Unable even to satisfy our appetites?"

Tamayo looked at Yota, who was dressed in gorgeous clothes, and remained silent.

"Huh? You didn't think I got this rare blood from killing someone, did you? It's not what you think. This is a reward I got in return. The person who killed this rare blood is still alive and well," Yang Tai explained after seeing his mother avoid the bottle of rare blood.

Living in a farm is living a good life too.

We also provide the best conditions to raise those rare bloodlines, the kind that live to old age.

Tamayo had a bad feeling: "What does that mean?"

How could a greedy and insatiable ghost possibly let rare blood live?

They'd eat you up completely, leaving nothing but bones behind – only a devil would do that!

Because she spent most of her time in the research institute, Tamayo was out of touch with the world, and she soon heard Yota's explanation.

The Ghost King set up a human breeding farm to raise rare blood, which he used to reward his capable subordinates and satisfy his appetite.

Tamayo's expression grew increasingly grim as Yota continued his explanation.

"This, this is just like livestock!" Tamayo exclaimed, her fingernails digging into her palm.

Yang Tai asked doubtfully, "Compared to the impoverished life that Xi Xue once lived, isn't the life we ​​provide now, where there is no worry about food and clothing, much better?"

"Besides, isn't the purpose of raising livestock for food?"

"Ghosts are people-eaters, after all!"

Yang Tai spoke in a very casual tone, as if it were commonplace.

Tamayo finally realized that her son had completely turned into a demon.

Sigrún has taught at the Iceland University of the Arts as a part-time lecturer since and was Dean of the Department of Fine Art from -. In – she held a research position at Reykjavík Art Museum focusing on the role of women in Icelandic art. She studied fine art at the Icelandic College of Arts and Crafts and at Pratt Institute, New York, and holds BA and MA degrees in art history and philosophy from the University of Iceland. Sigrún lives and works in Iceland.

The Infinite Castle's structure: Floor 1 - Public areas and activity rooms; Floor 2 - Demon Academy; Floor 3 - Battlegrounds; Floor 4 - Prison; Floor 5 - Warehouses; Floor 6 - Muzan's private demon residence; Floor 7 - Research Institute.

The new curriculum textbook for the Ghost Clan: "Tracking and Counter-Tracking" - by Fu Jun;

"The Art of Disguising Oneself as Human" - Muzan (noble template) X Jin Guang (wealthy merchant, servant) X Sakura and Gardenia sisters... (the number of writers is constantly increasing);

"Blood Demon Art Development Records and Catalog" - Shugo (a modern man with a wild imagination);

"Basic Common Sense about Human Society and the State" - Ren Guang X Shugo

Combat Techniques Compilation - Kokushibo X Fubuki Hayabusa

"Demon Slayer Corps Organizational Structure and Combat Strength Details (Including Detailed Explanation of the Five Basic Breathing Techniques)" - Kokushibo (Former Moon Pillar)

Detailed Explanation of Cellular Respiration – Hiiragi Go

"The Whole Discipline of Human Society" (including languages, mathematics, English, history, geography, physics, chemistry, and biology) – without an author, relying solely on the collection of human knowledge.

Multilingualism – Renguang, who is frequently sent abroad

...to be added

Akaza, who's been studying so much he's starting to doubt his very existence: ￥@%￥&*……

Is this the price for reviving Renyuki and Master Keizo?

terrible! !

Fushi Hayabusa, also a slacker (gloatingly): Great! I graduated early and successfully escaped Shugo-sama's upgraded version of the academy! Hahahaha!

Akaza: Envious and jealous!