Demon Progenitor Development Project

And the organization that Shugo envisioned was beginning to take shape.

Have Muzan summon all the demons with Blood Demon Arts, categorize them, and send those who can generate economic benefits to Jinko, and those who cannot to Fubukatsu for training.

Ren Guang was calculating the revenue over this period on his abacus, and he was very satisfied. His ghostly eyes were almost turning into the shape of money.

My sister Sakurako's awakened Blood Demon Art: Silk Weaving is absolutely amazing!

He was able to create silk threads with various effects, producing high-quality silk threads that were then used to make clothes for sale. These clothes were extremely popular with royalty and nobility, bringing him a significant increase in revenue.

Those muscle-bound idiots should learn from them!

If they could awaken such a blood demon technique, why would he make them suffer by mining?

Ren Guang wished he could worship Yingzi.

Sakura was also very satisfied with her Blood Demon Art. When she was a wanderer, the winters were so cold that she worried every day about how to keep warm. With this Blood Demon Art, she no longer had to worry about how to get through the winter.

Completely forgetting that she is now a ghost, Sakura, who is impervious to heat and cold, is able to support her younger sister.

I'm eating way too much gardenia these days.

The younger sister, Gardenia, awakened the Blood Demon Art, which involves eating. She eats everything, including human food, minerals, and even, according to tests, she can eat dirt.

Upon hearing this, Muzan Kibutsuji: ...

How could a ghost's blood demon technique involve eating?

Muzan looked at the young girl, Zhizi, as if she were a weirdo.

Shugo comforted her, saying, "These two girls we just picked up are so useful; we've already made a profit."

Gardenia really likes this Blood Demon Art.

When she and her sister were so hungry they wanted to eat dirt, Zhi Zi wondered why people couldn't just eat dirt to fill their stomachs, so they wouldn't have to work so hard to find food.

Muzan disdainfully tossed the two female ghosts to Jinguang to take with him.

It's useless anyway.

Muzan has already finished researching the connection between the twins.

Fu Jun feels extremely happy now!

Every day he would get up and start yelling and shouting at his subordinates who were being trained, either beating or scolding them, getting his fill of fun!

It's just that learning to read and write every day is too torturous!

He's lived for so many years, yet he still needs to learn to read.

Fu Junxue's knowledge went in one ear and out the other, leaving no impression whatsoever.

Being a ghost isn't the same as it used to be!

Not only must they learn to read, but they must also learn skills such as tracking, disguise, and trap making. Under the oppression of the Ghost King, the ghosts have no choice but to study hard and work themselves to the bone!

Muzan Kibutsuji: If you can't learn it, then die! (Indifferent face)

With such excellent conditions provided, how can he still not learn? He's just a waste of his blood and sweat.

Waste products are destined to be destroyed.

*

Nakime has been studying very hard lately, using her Blood Demon Art to continuously sink the houses she has built underground.

Hiiragi and Muzan were also there.

After all, that's where they'll be living in the future.

The style of the house and the interior decoration were decided by the two of them through discussion.

The group of ghosts simply stayed in Donggu City.

In the valleys near Higashidani Castle, shrouded in mist, grows a rare type of mist spruce. (Tanjiro's box is made of this material.)

Fog spruce is very lightweight, and its exterior becomes hard after being coated with varnish, combining both characteristics, making it an excellent type of timber.

Moreover, because the mist spruce grows in valleys shrouded in mist all year round, its waterproof properties are particularly excellent.

Houses built from spruce trees perfectly meet the requirements for living underground.

It's hard enough to withstand impacts with rocks, and it's waterproof, so it's not afraid of being seeped in by groundwater.

Aside from being very expensive, it has no downsides.

To save on shipping costs and time, Muzan simply hired local craftsmen to build houses in East Valley City.

The craftsmen: What a strange employer, building a house in such an odd place.

*

After a year, the house is finally almost finished.

Faced with rows of houses, Nakime activated her Blood Demon Art, sinking many houses underground and arranging them in various ways.

Such a big movement naturally made quite a noise.

An uninvited guest was attracted.

A red-haired man with a high ponytail, wearing sun earrings and with facial markings, appeared in the sight of the ghosts present.

Muzan Kibutsuji glanced at Yoriichi Tsugikuni.

The breathing techniques learned by humans have created a significant difference in physical constitution and blood quality compared to ordinary humans.

"A swordsman who knows breathing techniques? I'm no longer interested." Muzan's tone was arrogant.

The breathing technique, even with its increased intensity, poses no threat to the progenitor of demons.

If this Demon Slayer Corps swordsman had any sense and ran away on his own, Muzan wouldn't have bothered killing him.

Today is a day of great joy (?) for Muzan. (How could a coward not be happy to have a home he can run away from at any time?)

Shugo tilted his head. "Yoriichi?"

It's that annoying guy I know e=(′o｀*))) Sigh.

Hiiragi placed his hand on the hilt of the sword.

Yoriichi Tsugikuni stared at Muzan Kibutsuji, his face pale. With five brains and seven hearts, his vitality was as vigorous as a volcano, far surpassing any demon he had ever seen, and he had an inescapable bloody aura.

This is Muzan Kibutsuji.

Suddenly, a divine inspiration struck him.

He finally understood why he was born with extraordinary talent and strength—it was to kill such monsters.

What do you value life for?

Yoriichi Tsugikuni didn't receive a reply, only Muzan's disdainful gaze.

He knew the answer.

In an instant, Yoriichi Tsugikuni drew his sword, aiming it at the neck, the five brains in different locations, and the heart, before stepping forward.

In a mere instant, he traversed a distance of tens of meters and arrived in front of Muzan.

It's fast, incredibly fast.

Muzan had never seen a human move at such incredible speed!

The crimson blade, now engulfed in flames, gradually magnified in Muzan's pupils.

Muzan's red eyes narrowed as a strong sense of crisis washed over him. He instinctively transformed into a demon, tearing his luxurious clothes apart. His spiked whip and tube whip shot out, slicing through the air.

A sound like the air exploding rang out.

Under Muzan's incredulous gaze, the whip and thorn whip were severed the instant they met the flaming blade. The blade did not stop at all and struck Muzan's demonized body directly.

In an instant, Muzan's supposedly formidable body was cleaved into pieces. (He was hit with a critical strike by an attack that countered his own!)

At this point, not even the fragments of clothing had hit the ground.

Shugo had only just realized what was happening when he rushed towards Yoriichi.

"Narume!"

Startled, Nakime quickly regained her senses and began plucking the biwa again. A crack appeared in the ground, allowing Muzan Kibutsuji to enter an empty room before she disappeared back underground.

Nakime also ran away and hid underground.

Shugo, who was buying time for Nakime and Muzan, found himself in danger.

-

I've always wondered where all those rooms in Infinite City came from; they all look so luxurious. This is a personal interpretation in this story.

Muzan is estimated to also have real estate business.

And the next chapter will restore his memories and resolve some foreshadowing.

Question: What kind of creature turns to stone when it basks in the sun?