Simultaneous travel: I am proving the great way in the heavens

Mount Kumotori is now essentially a gathering place for the Demon Slayer Corps. Luo Fu, having just used the Blue Spider Lily to replenish his bloodline and genes, certainly wouldn't choose to clash head-on with the Demon Slayer Corps at this time.

He never held much animosity towards the Demon Slayer Corps. In Luo Fu's mind, they were merely a tool to be used.

Before Luo Fu could completely eliminate Muzan Kibutsuji, the Demon Slayer Corps served as a safeguard to hold back the demons.

The commotion at the Kamado family was significant, and with the Flower Hashira, Kanae Kocho, personally visiting, her prolonged absence would quickly attract a large gathering of the Demon Slayer Corps.

Luo Fu wouldn't risk that.

Although the little ones hadn't completed their transformation from humans to demons, Luo Fu wouldn't wait any longer.

He directly instructed Aoi Kamado and Nezuko Kamado to take the children and leave with him and the others.

After being transformed into a demon and understanding the relationship between demons and humans, Aoi Kamado knew they had no choice.

They had no option but to obey Luo Fu.

However, the traces of the battle between Luo Fu and Kanae Kocho were clearly left behind. In particular, Kanae Kocho's broken Nichirin Blade filled everyone's hearts with an ominous premonition.

Meanwhile, Tanjirou Kamado, who had finally finished firing a kiln of charcoal, learned about the speculation surrounding his family from the Demon Slayer Corps members upon his return.

Due to Luo Fu's appearance, Tanjirou Kamado had entered the Demon Slayer Corps ahead of schedule.

He began striving to defeat Luo Fu and avenge his family.

With Makomo, the former local tyrant of Mount Kumotori, present,

Luo Fu and the others quickly exited the layered mountains of Mount Kumotori via a path difficult for others to traverse.

After silently evading the Demon Slayer Corps' encirclement,

While leading Kanae Kocho, Makomo, and the Kamado family, including the women and children, in search of a new foothold,

Luo Fu suddenly faced an attack from Nezuko Kamado.

This girl, transformed into a demon by Luo Fu, could not only walk in the sunlight but also showed little desire for human flesh. She even inherited human memories and emotions.

It was unknown how much internal struggle she had endured, but she ultimately chose to attack Luo Fu without hesitation.

However, Nezuko Kamado's actions instantly filled Luo Fu with immense joy.

Besides Nezuko Kamado, Luo Fu had also encountered other demons' abilities.

For example, Hantengu. Perhaps because their Blood Demon Arts complemented each other, Luo Fu didn't find it strange that he could master Hantengu's Blood Demon Art to supplement himself.

Later, when dealing with Akaza, he failed to learn the opponent's Blood Demon Art, which further convinced Luo Fu of this point.

But now, when Nezuko unleashed that special fire-based Blood Demon Art, Luo Fu instantly felt as if that skill had been ignited within him.

He intuitively felt that he could easily unleash Nezuko's Blood Demon Art.

It was as if… as if after seeing Nezuko unleash her Blood Demon Art, his own genes and bloodline, fused with the Uchiha bloodline and supplemented by the Blue Spider Lily, were like a vast treasure trove that had never been organized or developed.

And now, Nezuko's Blood Demon Art was like opening a small passage within it, allowing Luo Fu to learn how to apply this special Blood Demon Art.

Faced with the overwhelming and scorching demon flames, Luo Fu directly split off an avatar.

Blue skin, a burly physique, and flames occasionally bursting forth from his body. At first glance, he looked like a Fudo Myoo enshrined in a temple, but with a face similar to Luo Fu's.

With the appearance of the Wrathful Avatar,

The flames unleashed by Nezuko, rushing towards him, seemed like swallows returning to their nests, instantly merging into the Wrathful Avatar's body as they approached.

They caused no harm to the Wrathful Avatar.

With a wide-open mouth, the Wrathful Avatar swallowed the scarlet flames from Nezuko's body in one gulp, as if a whale was devouring them.

Nezuko's Blood Demon Art itself was transformed from her own blood.

It couldn't burn endlessly. After the Wrathful Avatar swallowed all the flames on her body, Nezuko finally couldn't hold on any longer as her blood decreased. Her knees weakened, and she first knelt on the ground, then crashed headfirst into the ground, falling unconscious.

"Nezuko."

Taking care of the children who hadn't woken up yet, Aoi Kamado was terrified when she saw Nezuko actually attacking Luo Fu, this terrifying demon.

After arriving in front of Nezuko Kamado, she didn't even have time to check on her daughter's condition before kneeling on the ground with a thud, constantly kowtowing and begging Luo Fu.

"Lord, Lord, please, spare Nezuko. She… she… This child was just confused for a moment."

With Nezuko's unconsciousness, Luo Fu's Wrathful Avatar also dissipated on its own in an instant, returning to Luo Fu's body.

It was precisely the return of the Wrath that allowed Luo Fu to instantly realize that Nezuko's flames contained a special energy.

This energy came from blood but was even stronger than blood. Luo Fu vaguely felt that this energy already had some of the feeling of chakra and innate qi.

However, this energy was fleeting. With the return of the Wrathful Avatar, this energy instantly subsided within Luo Fu's body.

Whether Luo Fu used the method of extracting chakra or the means of the Outcast to temper innate qi, he couldn't feel the appearance of this energy again.

But Luo Fu was confident that he had truly found a system independent of demons and humans.

This was a real opportunity to push open the door to transcendence.

And the key to opening this door was Nezuko's Blood Demon Art.

Having fused with the Uchiha bloodline and supplemented with the genes of a demon, Luo Fu's own bloodline and genes had begun to evolve constantly according to his will.

Now, Luo Fu wouldn't even think of killing Nezuko. Even if others wanted to kill Nezuko, he wouldn't allow it.

After all, Nezuko's special Blood Demon Art was Luo Fu's hope to solidify his foundation, open another path, and become another Demon King surpassing Muzan Kibutsuji.

After the last trip to the shared space,

Whether it was Uchiha Luo Fu or Demon Slayer Luo Fu, they had already realized that there were huge flaws in the systems of their respective worlds.

There was no need to mention the Ninja World. Chakra itself came from outer space, and even all the chakra extracted by ninjas was just using their own lives to make wedding clothes for the Six Paths Sage hiding in the dark.

The chakra system not only didn't help to improve the essence of life, but even the more chakra extracted, the earlier one would die.

This was determined by the essence of chakra.

It was only because Uchiha Luo Fu, after experiencing the sharing, relied on the knowledge provided by Outcast Luo Fu and the physique and energy provided by Demon Slayer Luo Fu that he possessed his own unique chakra system.

But compared to the Ninja World, Demon Slayer was even worse.

From the dull eyes of the Hashira-level experts of the Demon Slayer Corps, it was easy to feel that the Breathing Styles of the Demon Slayer world, like the Demon King Muzan Kibutsuji, were imperfect existences with huge defects.

Once transformed into a demon, past memories and emotions could hardly be inherited, and one would be controlled by the Demon King Muzan Kibutsuji, manipulated by one's desire for human flesh.

But Breathing Styles were also not good things.

Yes.

Don't look at Yoriichi Tsugikuni, who created the Breathing Styles, and even possessed incredible abilities such as the Transparent World, but looking at the lifespan of other demon slayers who cultivated Breathing Styles was enough to make people feel that the so-called Breathing Styles were essentially no different from the Ninja World. They were all a way to exchange one's life for the ability to possess strength for a short period of time.

On the contrary, in the Outcast world, even though Zhang Luo Fu hadn't brought Uchiha Luo Fu and Demon Luo Fu much direct change in power, his pursuit of transcendence and the knowledge accumulated through more than ten years of effort gave them a clear understanding of establishing their own system.

All transcendent systems were nothing more than revolving around essence, energy, and spirit.

Before seeing Nezuko Kamado's special fire-based Blood Demon Art, although Luo Fu's physique and spirit had indeed soared countless times in an instant due to the shared ability,

This surge was unbalanced.

If the body represented essence, energy represented qi, and the mind and will represented spirit, then essence occupied an absolutely overwhelming advantage among the essence, energy, and spirit of Demon Luo Fu.

A strong life and a weak nature seemed to be a common characteristic of the Demon Slayer world, whether it was demons or the Demon Slayer Corps.

The former were manipulated by the desires of the body, degenerating into flesh-eating demons, and the latter were the same, driven by a powerful body. Their spirits were suppressed to the point where their eyes were dim and lifeless.

Nezuko's special Blood Demon Art gave Luo Fu a real opportunity to push open the door to establishing his own transcendent system.

Seeing Nezuko Kamado, who had exhausted too much blood to activate her Blood Demon Art, and whose figure had shrunk to the size of a small bean because of her exhaustion,

Luo Fu directly focused his gaze on Aoi Kamado.

Nezuko Kamado was so special, so her mother, Aoi Kamado, had no reason to be ordinary.

Staring intently at Aoi Kamado, Luo Fu said: "I don't plan to bother with a little kid, but you have to tell me first, have you also obtained a special ability like Nezuko?"

Startled, Aoi Kamado revealed a few entangled expressions. After hesitating for a moment, she said: "Sir, I don't know if what I have counts as a special ability. Nezuko can release flames, but I seem to only be able to heal some physical injuries."

“Hahaha…” Luo Fu laughed heartily, secretly thinking, as expected, the Kamado family was special.

Not only Tanjirou and Nezuko, but their parents and other siblings were also unique.

Instead of killing them directly, turning the entire Kamado family into demons and taking them away was definitely one of the wisest decisions Luo Fu had ever made.

His gaze swept over Aoi Kamado, Luo Fu said directly, "Show me your ability. Aren't you able to heal injuries? Then, heal Nezuko first."

"Yes." Aoi Kamado didn't dare to delay and quickly released her Blood Demon Art according to Luo Fu's instructions.

A shimmering green light filled with vitality suddenly emerged from Aoi Kamado's hand, showering the tiny Nezuko.

Visibly, Nezuko, who had consumed too much blood from using her Blood Demon Art, her small body was recovering as if it were being inflated.

Seeing this, Luo Fu stared even more intently at Aoi Kamado. To completely understand the operational rules of the Kamado family's special Blood Demon Art, Luo Fu even reached out and touched the shimmering green light.

The moment he touched the green light, Luo Fu clearly felt that it was less like light and more like a highly manifested life force.

What is life force? In the world of Outcasts, it is the source of all Outcast powers, symbolizing the innate Qi of all origins.

Aoi Kamado can directly gather energy that is incredibly close to innate Qi using her Blood Demon Art.

Just as Luo Fu was unraveling and experiencing this life force that was incredibly close to innate Qi, Aoi Kamado's Blood Demon Art suddenly stopped.

Luo Fu frowned in dissatisfaction.

"What's going on? Why did you stop?"

Breathing heavily, Aoi Kamado's face was unnaturally weak as she said, "Sir, I have no more strength."

After Aoi Kamado's green light baptism, Nezuko had returned to her normal size. However, she was still unconscious and had not woken up.

Luo Fu glanced at Aoi Kamado with disappointment.

Both Aoi Kamado and Nezuko were now worth a fortune in Luo Fu's eyes. It even directly related to the possibility of him developing another system.

Even if he wasn't satisfied, Luo Fu wouldn't force Aoi Kamado to drain herself.

Although that little one hasn't woken up yet, aren't there still Makomo and Kanae Kochou?

"Makomo, you don't seem to have told me what your Blood Demon Art is."

Makomo immediately showed an embarrassed expression and said somewhat shyly, "My… my Blood Demon Art is a little difficult to demonstrate."

Luo Fu was currently in the midst of research, so he wouldn't allow Makomo to refuse. His expression changed, and he ordered unquestioningly, "Show me your Blood Demon Art."

Makomo, who had been tormented by Luo Fu, didn't dare to resist in the slightest, no matter how unwilling she was in her heart.

At this moment, she still took a deep breath and began to use her Blood Demon Art.

As a sound of water rang out.

Makomo in front of Luo Fu suddenly transformed from a living, cute girl into a handful of clear water.

Her Demon Slayer Corps uniform, under the influence of gravity, slid through the clear water and fell to the ground.

In the position where Makomo was originally, a flowing water, vaguely visible the graceful curves of the girl's transparent shape, let Luo Fu immediately understand why Makomo was embarrassed to use her Blood Demon Art.

Demons' Blood Demon Arts are varied, space, water, fire, lightning, ice… there is almost no pattern to follow.

It's not surprising that Makomo awakened this kind of water transformation technique like the Hozuki clan in the ninja world.

Luo Fu tentatively stretched out a hand and plunged it into the water.

In the increasingly turbulent water, Makomo's voice suddenly came.

"Lo… Mr. Luo Fu."

"Don't move." Luo Fu was now focused on studying Makomo's ability to transform into water, and upon hearing this, he ordered in an unquestionable tone.

What Luo Fu was studying was not the superficial ability of Makomo's transformation into water, but the deeper principles of the Blood Demon Art operating beneath the ability.

They were all demons transformed by his own blood. The Kamado family was special, and even if Makomo couldn't compare to them, her ability should be enough for Luo Fu to glimpse that path to heaven.

Sure enough, by reaching into Makomo's system with his hand and making almost zero-distance contact with her water transformation Blood Demon Art, Luo Fu quickly noticed a special energy supporting Makomo's transformation into clear water, and this energy came from deep within her bloodline.

Compared to the Blood Demon Art that relies on blood to use, this energy is more like a product of the essence of life, similar to the innate Qi of the Outcast world, but with some differences in appearance.

In fact, in the world of Outcasts, the so-called innate Qi is not a fixed energy. On the contrary, the so-called innate Qi is the most basic energy that supports the birth and operation of life. It is not even accurate to describe it as energy, but rather a law of life operation.

And at this moment, the energy that supports Makomo's transformation into flowing water is somewhat similar to Luo Fu's ideal innate Qi.

The reason why it is ideal is entirely because, when he first entered the shared space, even Zhang Luo Fu of the Outcast world had not yet become an Outcast, and was even more unable to manipulate the so-called innate Qi.

At most, it was his more than ten years of persistent pursuit of transcendence that gave him a full understanding of various concepts and knowledge.

It gave Ninja World Luo Fu and Demon Luo Fu the theoretical basis for developing their own systems.

As Makomo supported for longer and longer, an energy from the depths of Luo Fu's bloodline gradually emerged.

After this energy emerged, it quickly disappeared.

But Luo Fu felt that the reason why this energy disappeared was because his body had not yet reached the point where his essence was sufficient to not think about lust, his Qi was sufficient to not think about food, and his spirit was sufficient to not think about sleep.

Theoretically, the balance of spirit, Qi, and essence would be the most ideal state of life. At the same time, this is also the positive realm pursued by the Golden Light Charm inherited by Longhu Mountain in the Outcast world, which is the only way to improve one's life.

But in fact, this is just an ideal state. In the world, whether it is the passage of time, the change of mind, or every move, is breaking this balance.

Whether it is an ordinary person or a demon, their essence, Qi, and spirit are unbalanced.

However, the essence, Qi, and spirit of ordinary people will be consumed little by little over time. Any one of the three being deficient will lower the upper limit of the other two, eventually leading to the loss of vitality and aging and death.

Demons, because of their special nature, have the strongest essence, and their bodies have even given birth to Blood Demon Arts, but their spirit and Qi are insufficient. On the contrary, there is no supplement to the body. Instead, they absorb the body, causing the strong to become stronger and the weak to become weaker.

With a strong body, they pull the spirit and Qi. The body passively pursues strength, which eventually leads to demons having to eat human flesh.

This situation is quite similar to the final state of the Six Treasures Immortal Thief in the Outcast world.

Humans are the spirit of all things. The best food for demons transformed from humans is undoubtedly the humans who used to be. This is the fastest thing that can replenish the essence, Qi, and spirit of demons.

Through the study of the Blood Demon Arts of the Kamado family and Makomo.

Luo Fu vaguely realized something.

He needs to curb the process of this special energy being passively absorbed by the body after its birth. While maintaining the existence of this energy, he needs to use this energy to strengthen his own spirit.

The so-called refining essence into Qi, refining Qi into spirit, uses the strong body representing essence to create a mysterious energy, and pulls this innate Qi, which is itself like the essence of life, from the realm of concept to reality. This process is refining essence into Qi.

Further, using this essential energy that supports the operation of life to enhance the growth of one's own spirit is refining Qi into spirit.

As for the next refining spirit to return to emptiness, according to Luo Fu's idea, it should be to strengthen the balanced essence, Qi, and spirit. The three are rounded and unobstructed, as if returning to simplicity, reaching a degree similar to the so-called divine light containment in the Outcast world.

In this way, one can pursue further refining emptiness to combine with the Dao. Unfortunately, Luo Fu has nothing to refer to for the so-called refining emptiness to combine with the Dao. He can only self-righteously guess that the extremely strong essence, Qi, and spirit are used to refine the so-called laws of heaven, according to some empty and even ethereal ideas.

Except for the last empty and even ethereal idea, the previous refining essence into Qi, refining Qi into spirit, and refining spirit to return to emptiness are not fixed realms, but a continuous process.

The three are not walked through step by step, but should be carried out simultaneously and are endless.

After understanding the truth of the so-called Blood Demon Art, Luo Fu couldn't wait to try it out.

Casually explaining to Makomo and Kanae Kochou, Luo Fu directly chose to retreat and comprehend.

After leaving Mount Kumotori, Luo Fu brought Makomo, Kanae Kochou, and the Kamado family to Asakusa Temple, which is still outside Tokyo.

If he wants to deal with Muzan Kibutsuji, before he has absolute overwhelming strength, Tamayo is someone he can't avoid.

Don't look at Tamayo as if she doesn't have a high sense of existence, but in fact, Tamayo, like Luo Fu, has been chased by Muzan Kibutsuji. It's just that her hiding is more secretive and has not been discovered.

Even the Demon Slayer Corps, the partner, does not know the location of Tamayo. Even in the future, the cooperation between Tamayo and Tanjirou Kamado is because Tanjirou Kamado obtained the blood of the demon and sent the blood of the demon through means such as the Kasugai Crow.

Tamayo will settle down near Asakusa Temple in the future, and Luo Fu can do the same.

Even taking advantage of this time, he can continue to promote the development of his own system.