Demon Progenitor Development Project

After a month, Kokugan no Yoshikatsu officially transformed into a ghost, changing from a handsome young man into a spirited young man with six eyes.

After the transformation into a demon ended, Kokushibo stared at his own face, now marred by six eyes, in the bronze mirror, and was momentarily dazed.

"Kuroshibo, I want to know about Yoriichi."

It's Yoriichi again.

Yoriichi is always as dazzling as the sun. All that everyone can see is Yoriichi. He is just Yoriichi's shadow, just as the moon is the shadow of the sun.

"...Yoriichi...his wife and daughter have passed away..."

After Kokushibo transformed into a demon, he began to speak slowly.

May a year ago?

Shugo seemed to be deep in thought, so he went to find a forgotten undercover agent named Ichijo to learn about the changes in the Demon Slayer Corps over the past year.

Carrying the Muzan cat back to the bedroom, Shugo idly stroked the black cat's soft fur.

It has to be said that Muzan's ability to mimic is truly amazing!

"One year ago, in May, Yoriichi's wife and daughter were killed by a demon. One year ago, in May..."

Hiiragi's voice was deep as he repeated the time.

An interesting question arises.

At that time, almost all the ghosts who were active outside were gathered together to learn various skills in seclusion.

Who was the demon who killed Yoriichi's wife and daughter?

Muzan's dark cat face was also serious, and he obediently huddled in Shugo's arms.

Upon this analysis, it turns out there are still ghosts outside his control?

"Muzan, do you remember the list of demons you transformed?"

"..."

After a long silence, Muzan let out a muffled meow and dejectedly covered his face.

Who would remember?

He turns people into ghosts based entirely on his mood and what he feels at first sight!

We'll still need to keep records of ghost employees from now on.

Shugo got up and searched through a large pile of documents, finding the records of all the Demon Slayer Corps that Jinko had collected.

Especially those related to Ubuyashiki.

The babies born to the Ubuyashiki family at the very beginning gradually died and were unable to grow into adults.

"After marrying into a family of priests, the lifespan of the Ubuyashiki family is extended to their twenties?"

A clan of priests?

As the former head of the Fujiwara family, who once held the highest power in the country, he had never heard of it before.

Shugo seemed to be deep in thought, putting down the information in his hand. So, does this mean that the Shinto priest family only came to marry into the Ubuyashiki family after experiencing multiple infant deaths?

There are so many coincidences.

There were many coincidences surrounding the murder of Yoriichi's wife and daughter.

Shugo suppressed his smile, feeling as if a giant hand was manipulating everything behind the scenes.

He had been intentionally or unintentionally ignoring Kisaragi, the wife he had once married as a figurehead.

Because he always felt that his death was very suspicious.

It's absurd that the Emperor attempted to assassinate someone, especially since there were no prior signs.

He died so suddenly.

It's like a plot-driven death.

Tamayo still became a demon, and Yoriichi Tsugikuni still joined the Demon Slayer Corps.

Does fate really exist?

Shugo found it impossible, as he had never realized that the world possessed a clear consciousness that could be called a personality.

Is there a hidden hand at play?

The current clues seem to have confirmed the existence of a mastermind behind the scenes.

*

Yoriichi Tsugikuni has been traveling around recently, searching for Muzan Kibutsuji's whereabouts. He is currently resting at the Wisteria House.

Ever since he wounded Muzan Kibutsuji, demons have become increasingly difficult to find. They almost always start massacring villages and towns as soon as they appear, eating and leaving without ever staying long.

As a result, the Demon Slayer Corps was almost constantly on the run, with no effect whatsoever.

"Lord Sun Pillar, the Lord urgently summons you back to the camp." An old man opened the sliding door and said to Yoriichi, who was eating.

Yoriichi put down his bowl, nodded, and said that he understood.

What Yoriichi didn't expect was that this urgent summons was not for a meeting of the Pillars, but for an interrogation, a questioning directed at him.

Upon returning to the Demon Slayer Corps' secret base, Yoriichi looked at the seemingly hastily renovated base with a puzzled expression, his brows furrowing slightly.

Whenever their lord summoned them to his courtyard on a regular day, Raiju's thunderous shouts would come straight at Yoriichi Tsugikuni.

"Yoriichi, do you know what your brother has done?"

Yoriichi Tsugikuni, whose collar was being grabbed, remained calm and simply asked, "Brother, what did you do?"

The new Stone Pillar sneered: "What did he do? Tsugikuni Mikatsu has become a demon and even killed our lord!"

Yoriichi Tsugikuni stood there, stunned.

Elder brother? Why did you do this?

"He probably killed his lord to curry favor with his new master," Wind Pillar Ginjiro sneered.

"Did you already know? That's why you failed to kill Muzan Kibutsuji back then!"

"It's not surprising that an arrogant guy like Jiguo Yansheng would do something like this. He was once the ruler of Jiguo."

"originally"

Various hurtful words came from the pillar's mouth.

The younger Flame Pillar looked at Yoriichi, hesitant to speak, yet still wanting to.

His father had told him about Mr. Yoriichi, and he trusted Mr. Yoriichi's character.

But now, with their companions facing imminent death due to the markings, and their pillar of support, the young lord, gone, everyone is losing their minds.

She relentlessly poured out her fear and pressure on Mr. Yoriichi.

Just as Tsugikuni Yoriichi thought, he was not the only one who felt this way; all the Pillars shared this feeling.

That's why we have this scene today.

'Anyway, you're already so strong, Yoriichi Tsugikuni, so bearing our pressure and fear isn't a big deal, right?'

The darker side of human nature is laid bare.

Throughout the entire ordeal, Yoriichi Tsugikuni remained silent, offering no rebuttal to the accusations. Little did he know that this act of enduring insults only fueled the crowd's growing agitation.

The accusations in the courtyard grew louder and louder, and the language became increasingly vile!

"You're the one who brought Kokugoku Yenshō in here!"

"Yoriichi Tsugikuni did something wrong, he should commit seppuku to atone for it!"

"Punish yourself with seppuku!"

The overly young Flame Pillar panicked: "The Lord's death was not Yoriichi's fault!"

"Enough!!" The new lord arrived in a hurry, and was even younger than the previous lord.

Looking at the indignant crowd, the young lord sighed helplessly and said to Yoriichi Tsugikuni.

"Mr. Yoriichi, please leave the Demon Slayer Corps."

Not long after, Yoriichi Tsugikuni stood blankly at the entrance of the camp, carrying a bundle.

He seems to be homeless again.

Where should he go?

------

The number of demons active in this story is much smaller than in the original work. Many weaker demons were thrown into mines and worked to death. Those that are active have mostly awakened their Blood Demon Arts and are quite powerful, so the Demon Slayer Corps primarily fights demons in teams.

The plot is coming up soon, and I'll try my best to compress each chapter.

Compared to the naive and innocent Muzan, I've introduced another major villain. Muzan, as a villain, is really lacking in substance and doesn't act like a villain at all.