Cultivation

The goal is to evolve the existing power system.

Therefore, the balance must be broken, including by Muzan, the progenitor of demons.

Unless Muzan can also evolve and bring a higher level of primal power to this world, simply transforming into a demon and relying on blood will actually become a limitation for him.

This is also why Oboro didn't want to see Muzan before.

In the early stages, he only needed to utilize Muzan's power to create a chaotic situation and increase the difficulty of survival.

This allows both the Demon Slayer Corps and its successors to grow passively.

This fosters a healthy competitive environment.

If Muzan is eliminated, it means that the Demon Slayer Corps or its successors have evolved to another level.

At that time, a successor will take over Muzan's position and fight against the Demon Slayer Corps.

The will of those who carry on the legacy always lies in reshaping the world, in destruction and in creation.

This alone creates a fundamental conflict with the Demon Slayer Corps.

Therefore, this world can never be at peace.

The battle will continue.

Just as Oboro said, as long as there is conflict and contradiction, that is the best way to stimulate the biochemical transformation of power.

At the current rate of growth of the Demon Slayer Corps, he will probably retire before Tanjiro and the others are born, even a little over a hundred years from now.

Unless, Muzan can come up with some unexpected tricks.

After being transformed into demons by Oboro, the Gyutaro received his essence and blood, becoming one of the inheritors.

That very night, amidst the pure white snow, Gyutaro began his revenge on the world.

The first thing they did... was to carry out a massacre.

Slaughter those who stand by and do nothing.

Everyone along the Rashomon Riverbank is going to die!

Oboro and Chiyoko left first; he had no interest in watching the massacre.

However, he will definitely have to intervene in Gyutaro's growth... In retrospect, it was Gyutaro was stronger, not Daki. Daki's existence was simply due to the 'sibling bond'... More precisely, as Muzan commented, this woman was a burden.

But it is precisely because of this bond that Gyutaro is able to become so powerful.

Family, lovers, friends, and so on—these emotional bonds are all nourishment for passing on one's will... Therefore, it is impossible to separate the two.

All Oboro could do was make Daki less weak.

He planned to teach Gyutaro some martial arts and combat techniques, as well as basic breathing exercises... His breathing exercises were not low-level breathing techniques, but applicable to any living being.

In other words, even ghosts can learn.

The following morning, news of the shocking death spread throughout the city.

The scene, resembling Asura landscape, sent chills down the spines of all who witnessed it.

This is arguably the most devastating attack by a demon during peacetime in recent years.

Everyone knows that a ghost is hiding in the city.

People today are very knowledgeable about ghosts, and soon the people in the magistrate's office and the ghost-hunting teams spontaneously organized by the people began to search, but they found nothing and no clues.

Ultimately, the only conclusion was that the ghost had escaped.

This matter was also suppressed by Oboro.

However, given the current climate, it's impossible for Oboro to completely suppress the news. The Shogunate, the Demon Slayer Corps, and even the secular world are all far too sensitive to demons; the news will quickly spread elsewhere. In just two days, a Pillar of the Demon Slayer Corps arrived.

The reason for this rapid progress is that the Demon Slayer Corps has an inseparable relationship with the Shogunate. Through the Shogunate's channels and power, this 'chariot' can operate even faster.

There are three pillars in total.

With so many people dead, the killer must be no ordinary ghost; they take this very seriously.

Oboro had already informed the Shogunate not to interfere, but the Pillar still came... which did not surprise him.

Faced with absolute will, the Demon Slayer Corps will only fulfill its mission, even if it means defying authority, to eradicate all demons.

However, despite their repeated investigations, the three Pillars were unable to find the hidden demon.

Although the clues were eventually traced back to Oboro's residence.

However, due to Oboro's identity and the large number of people stationed around the mansion, the three had no choice but to temporarily stay in the city and wait for Oboro to reveal a weakness.

"If you want to protect your sister, you must become stronger... Starting today, follow me in your training."

"If you can't do it, what happened to Daki will happen again sooner or later... and then no one will help you."

"Only yourselves can save you."

"The Demon Slayer Corps Pillars have arrived. With your current strength, any one of them could easily kill you."

In the courtyard under the cover of night, Oboro glanced at Gyutaro kneeling before her, draped in a black haori, and spoke softly.

After becoming a demon, Gyutaro's appearance changed, becoming exactly like that of people in later generations.

The only difference was that the bare upper body now had an extra piece of clothing.

Oboro stopped joking. Under his guidance, the Pillars of this era were far more powerful than those in the original story. Even though Gyutaro had great potential, he had only recently become a demon. Furthermore, compared to the demons under Muzan's command, all the successors retained their memories from their human days, thanks to the will in Oboro's blood, which allowed them to retain a sliver of consciousness.

"Yes."

Gyutaro appeared very well-behaved.

The same Daki.

Her body was trembling slightly.

Given Daki's arrogant and conceited nature, it would be very difficult for others to make her bow her head.

When Gyutaro first met Oboro, he had to forcefully press his sister's head down before bowing to her.

Even knowing that Oboro was the savior who saved her and her brother, Daki couldn't help but stare at him with a cold gaze, feeling that the man in front of her was not worthy of her and her brother being treated so humbly.

However, after making eye contact with the man, Daki's expression changed.

A feeling of fear and apprehension spread deep within her, forcing her to suppress her emotions.

From then on, every time she saw Oboro, Daki didn't even dare to look directly at her.

Oboro actually only used a little bit of his soul power.

Otherwise, this girl will be very difficult to train.

"Let's begin."

Oboro glanced coldly at Daki, ignoring her, and spoke to Gyutaro.

"Yes."

"Can you feel it?"

"Um."

"It's definitely there... It's the aura of ghosts, and there's more than one."

"Should we break through the encirclement? It seems like a very important person lives there."

At this moment, three figures stood on a building not far from the Long Mansion.

Their gazes were fixed on a corner of the ground in the darkness of the distance, as they discussed the matter.

"But... before we came, our lord instructed us not to force our way in if we encountered a situation like this, but to leave directly."

One of them remembered something.

"It seems that our lord knows this man's background."

"What do you mean? Does that mean just because he has powerful connections, he can protect ghosts? Maybe he's already been possessed by a ghost..."

At this moment, a short-haired, calm man's eyes flickered, and he suddenly spoke up, "Never mind, let's go."

"Um?"

Upon hearing this, the other two pillars were quite puzzled.

"Yuta..."

The man called Yuta, the current Water Pillar, took a deep breath. "My teacher once told me that many years ago, a Water Pillar from another generation encountered some events in this area. He then instructed each of his successors that if any unusual event involving demons occurred in this region, regardless of its severity, they must be extremely cautious. He specifically emphasized a certain location in the city, and that is..."

Yuta looked at the shadows of the walled courtyard in the distance and frowned. "What that senior meant was that even if the Demon Slayer Mark is activated... it's useless to rely on individual strength. We have to wait until one day when all the Pillars have grown a second time based on the Demon Slayer Mark, and rely on the entire Demon Slayer Corps' combat power to have a chance."

"This rumor has been known to each generation of Water Pillars to some extent since that predecessor passed away..."