I simultaneously traverse countless worlds

As for the talent and technological resources of the Russians that Li Mo was eyeing, there were already people in charge of them brought by Captain Balalaika. She only knew some of the details, and given the current situation, she would rather these talents and technologies fall into the hands of her man.

"Haha, Balalaika, this little thing is no problem, leave it to your uncle!"

Upon seeing the documents handed over by Captain Balalaika, which consisted of a list of conventional weapons and equipment, as well as a demand for pilots, maintenance engineers, and medical personnel, the Lieutenant General of the Soviet Union, impressed by the attached check for one million US dollars, immediately agreed without hesitation.

"Then I'll have to trouble Uncle Selyov..."

Captain Balalaika felt a strange sense of admiration upon hearing the Russian lieutenant general's quick reply, but on the surface, he maintained a smiling expression and thoughtfully expressed his gratitude to this uncle with whom he had a good relationship.

If it were ten years ago, Captain Balalaika would have felt extremely dissatisfied, even angry, watching his uncle directly sell weapons and equipment and hire former Red Bear soldiers and personnel to work as mercenaries in Africa. How could the Red Bear, one of the two superpowers, possibly produce such an astonishing scene?

Now, Captain Balalaika has come to terms with it, and Lieutenant General Selyov is actually quite principled. At least he buys and sells weapons and equipment for the sake of his subordinates and his own livelihood, which is quite a bottom line compared to other Russian military leaders!

……

"Tears, Xiaotong and Xiaoai, look, this is what you've been looking for!"

Meanwhile, at his manor in Tokyo, Li Mo, who was gathered with the Cat's Eye sisters, Saeko Nogami, and Roberta, opened the wooden crates that the bodyguards had brought over. He pointed directly to the paintings and artworks inside and said to the others, "..."

"real?!"

When Li Mo spoke and gestured for the bodyguards to open the wooden crate, revealing a series of very familiar paintings and a few other artworks, Lai Sheng Rui, somewhat incredulous, walked straight forward. Upon realizing that the artworks and paintings were indeed left by her father, Heinz, the beautiful woman couldn't help but burst into tears. She embraced Li Mo, her voice filled with a mixture of love and resentment, and said to her lover, "Mo, thank you so much!!!"

Well, Lai Sheng Lei had actually resigned herself to her fate. She wasn't too conflicted about giving herself to Li Mo, but what troubled her was that her two younger sisters' relationship with Li Mo was getting better and better. In addition, the Lai Sheng family had the support of the EU Group and was developing, which made Lai Sheng Lei unsure whether she could fully accept this kind of life.

But Li Mo has now collected all the artworks and paintings left by his father Heinz. After estimating the number of wooden boxes, he knew that this was probably all of his father's artworks and paintings that had been lost before. Lai Sheng Lei knew very well that if she wanted to collect these of her father's posthumous works of art and relics, she might not be able to do it even if she spent ten times more effort and time than before. But Li Mo, this bad man who had taken her and her two younger sisters, had really spent a lot of effort to do this, which really moved her.

Not only Rui Kisugi, but also Hitomi Kisugi and Ai Kisugi looked pleasantly surprised. They knew to some extent how difficult it was to collect the artworks left by their father. Otherwise, the Kisugi family would not have only tried to do so in recent years, and the three Kisugi sisters would have done it as the Phantom Thieves of Cat's Eye. It was because the artworks left by their father Heinz were too scattered, and the Kisugi family did not have the connections or financial resources to collect them.

Now that Li Mo has stepped in, the Cat's Eye sisters won't have to go through the same trouble. They can easily retrieve their father's belongings by using some methods, and they won't even need to steal anything. They can simply use the EU Group to coerce and entice him!

"Well, do I need to thank you for our relationship? As for Saeko, you can get promoted without any problem, but it will be difficult for you to become the head of the Metropolitan Police Department..."

Seeing the joy of the three sisters, Li Mo went up and kissed them without any hesitation before explaining to Nogami Saeko the restrictions she faced on her desire to continue working at the Metropolitan Police Department.

Even though Li Mo dealt with Nogami Saeko's father and prevented other aspects of Japan from interfering, Nogami Saeko's situation as a woman in Japan inherently imposed many restrictions. For example, even if she continued to work and be promoted in the Metropolitan Police Department, she couldn't expect to rise to the top position of the Metropolitan Police Department, or even occupy a high-ranking position with considerable power. That would already be because Li Mo was helping her behind the scenes. Otherwise, according to Japanese customs, women who get married have to go home to have children and take care of daily family life.

Saeko Nogami didn't seem to care about that. She chuckled a few times to indicate that she didn't mind, and then chatted with Robert and Yukio Washimine. Li Mo comforted the three sisters, including Rui Kisugi, and they enjoyed themselves thoroughly that night!

………………

With Li Mo's various actions, the situation in the Black Lagoon world became increasingly complex and unpredictable. While America was still at the peak of its national power, the situations in many countries, such as China and Japan, had become different from the world Li Mo had inhabited before his arrival.

Without going into too much detail, China has increased its investment in Li Mo, along with the gradual influx of technology and talent from countries such as Japan, Russia, and the Fourth Prussia. Its development speed is certainly unmatched by the world before Li Mo's transmigration. Many technologies that were once considered secrets by countries like Russia and Japan have already begun to be industrialized in China, and it is expected to accelerate development by at least ten years.

As for Japan, Li Mo is already the uncrowned king of the underworld. Many of the conglomerates and banks that control Japan's economy have actually fallen into his hands. The official government is mainly composed of Saeko Nogami and some other pawns, while the Yakuza forces are mainly composed of the Washine Group. It can be said that he has substantial control over Japan. Smuggling is almost out in the open. If it weren't for America's military base and soldiers, Japan could probably just change its name.

Li Mo from the Black Lagoon was quite pleased with himself. He was now at the top of the power structure in the Black Lagoon. Unless he did something like courting death by going after the five giants, he possessed power and wealth that ordinary people could not even imagine. He was enjoying his life while making plans, preparing to see if he could take advantage of a few opportunities to bring America down from her peak.

However, Li Mo in the Black Lagoon world was unaware that his actions there were very successful, while Li Mo in other worlds acted differently. For example, Li Mo in the Demon Slayer world was much more direct and unrestrained in his actions...

Volume 3 of Demon Slayer!

Chapter 1: The World of Demon Slayer!

Demon Slayer!

This anime is set before Li Mo transmigrated. He had already been working as a cog in the machine for several years and only occasionally had free time to discover that it was a Japanese anime from 2019. Its popularity was quite good in both Japan and China at that time.

At least for Li Mo, when he watched the Demon Slayer anime, he thought its premise was pretty good. It was just that the protagonist's entire family was almost wiped out shortly after his introduction, which made him want to complain and be speechless. In China, this kind of revenge plot, where the protagonist is the only survivor or has one remaining relative, is a trope that was practically overused in Chinese online novels a decade or two ago. The fact that a Japanese anime still used this formula left Li Mo speechless. However, in his spare time during his workday, he still watched the Demon Slayer anime and related theatrical films!

Upon closer examination of the Demon Slayer anime, Li Mo initially found it quite good. Both the theatrical releases and the anime's plot showcased a remarkably high level of quality. Leaving aside the scumbag Muzan Kibutsuji, who was far too unbecoming of a boss, the clashes between the Twelve Demon Moons and the powerful members of the Demon Slayer Corps were quite impressive. Moreover, considering the unique abilities of various demons, such as the Blood Demon Art and the numerous breathing techniques of the Demon Slayer Corps, it's absolutely accurate to say that the world of Demon Slayer is a world with extraordinary powers.

At least in the case of the Demon Slayer anime, even if the Demon Slayer Corps' breathing techniques are considered superhuman powers that require sacrificing one's life, reaching the level of unlocking the [Scarlet Mark] or even the [Transparent World] would not be considered weak even in a low-level martial arts world. If we consider the Twelve Demon Moons and the demons' super-fast regeneration abilities and numerous Blood Demon Arts, they might even be able to barely touch the boundary of a mid-level superhuman world. It's just that sunlight is too much of a counter to those demons.

The problem is, Li Mo never expected that he would one day suddenly transmigrate into the world of Demon Slayer, and even encounter a fleeing demon before he could figure out the situation. If he hadn't transmigrated and become noticeably younger and had someone to help him, he probably would have become that wounded demon's meal.

However, Li Mo tragically discovered that although he was saved, he had been turned into a demon by being tainted by the blood of the injured demon. The Flower Pillar, Kanae Kocho, who had just killed the injured demon, was holding a Nichirin Blade and looking at Li Mo, who had become a demon. After some one-sided persuasion, the demon Li Mo had no choice but to accept Kanae Kocho's request and go with her to the Demon Slayer Corps to be restricted. It wasn't that he hadn't eaten people before, but that he had been tainted by demon blood and turned into a demon. He would probably have been dealt with on the spot by the Demon Slayer Corps long ago.

Even though he survived by sheer luck, the evil spirit Li Mo didn't fare well. He had no choice but to accept being imprisoned by wisteria flowers and iron fences, and was studied by the Demon Slayer Corps like a precious lab rat. However, without discovering his own cheat ability, he was a weakling who hadn't even awakened a single Blood Demon Art. There was no way he could escape the cage set up by the Demon Slayer Corps, and he could only helplessly accept being treated as a lab rat under house arrest.

Now, through the [White Mist Space], his own cheat code, he has gained the power and experience of Li Mo from other worlds. The demon Li Mo from the Demon Slayer world finally has a chance to change his fate. Naturally, he will no longer endure it and is determined to use his own power to break free from the Demon Slayer Corps' constraints!

………………

In the area controlled by the Demon Slayer Corps, at the Butterfly Mansion headquarters, which serves as the logistics and medical unit, the sun was already almost setting behind the mountains. The medical and logistical personnel who were busy at the Butterfly Mansion headquarters were all preparing for their rest and shifts.

As a semi-reclusive organization that has been fighting against man-eating demons for over a thousand years, the Demon Slayer Corps has a considerable number of members. Members who are injured in their fierce battles with man-eating demons are frequently seen. For example, the Butterfly Mansion, which serves as a logistics and medical unit, has many contact points and branches throughout Japan in addition to its headquarters. However, the medical technology and conditions at the headquarters are undoubtedly the most outstanding.

It's not that the Demon Slayer Corps' medical technology completely surpasses modern medical standards, but the timeline of the Demon Slayer world is still in Japan's Taisho era. Modern human medicine had only just discovered and promoted the first antibiotic, and there was not yet a substantial gap between it and classical Eastern medicine. In addition, the Demon Slayer Corps' research on demons over the past thousand years meant that many injured Demon Slayer Corps members could receive targeted treatment, and the recuperation conditions for seriously injured members were better than those in hospitals in ordinary towns. It can be said that these were very good medical institutions in Japan.

More importantly, the entry of injured, especially seriously injured, members of the Demon Slayer Corps into town hospitals could easily alert the authorities. Even though the Demon Slayer Corps has considerable influence in Japan and can conceal the existence of man-eating demons and allow its members to carry knives without being arrested, if injured personnel continue to enter various hospitals, it will inevitably attract a lot of attention sooner or later. Therefore, the Demon Slayer Corps specifically set up the Butterfly Mansion as a logistical medical facility.

Of course, for the evil spirit Li Mo, he was too busy to analyze so many situations. He was imprisoned in the underground cell of the Butterfly Mansion headquarters for more than half a month. He only enjoyed the occasional guinea pig observation treatment. The rest of the time he could only sit alone in this cell!

"Mr. Li Mo, are you awake now?"

Just as the evil spirit Li Mo, who had just returned from the [White Mist Space], was leaning against the steel fence and organizing his memories with his eyes closed, while also integrating his power which had increased many times over, he suddenly heard a familiar and pleasant voice.

Indeed, Li Mo, the demon, was extremely familiar with that voice. Anyone who was saved by a beautiful girl at the brink of death would have a very deep impression of it. Moreover, when she saved him and found that he had been tainted with demon blood and turned into a demon, as a member of the Demon Slayer Corps whose duty was to kill those man-eating demons, it was already a very magnanimous thing for her not to kill him with one blow but to imprison him.

Upon hearing that familiar, melodious voice, the demon Li Mo knew the other party had arrived and opened his eyes. However, when he saw that familiar, beautiful figure and two smaller figures behind her, a hint of helplessness appeared on his face:

"Kanonae Hanabira, you even brought your two younger sisters with you?"

……

The Flower Pillar of the Demon Slayer Corps! Kanae Kocho!

Upon seeing the approaching figure—a beautiful girl with black hair, purple eyes, long, flowing hair adorned with pink-edged, emerald-green butterfly hair clips, and wearing a standard Demon Slayer Corps uniform with a colorful butterfly-patterned haori—it was none other than Kanae Kocho, one of the Demon Slayer Corps' current top fighters, known as the "Flower Pillar."

This beautiful girl with long, straight black hair has a gentle and kind personality. She often wears a gentle smile on her face, and her voice is like the warm spring sun, giving people a gentle and generous feeling. She is also very talented and does well in guzheng, flower arrangement, and tea ceremony. Moreover, because ghosts and humans were once the same kind of creatures, she has a certain sympathy for ghosts. She believes that hunting ghosts is not only about saving the people that ghosts want to kill, but also about freeing ghosts from their tragic karma. That's why she took action to save Li Mo, who had become an evil ghost after being tainted by ghost blood.

Having watched the anime *Demon Slayer*, Li Mo knew that Kanae Kocho came from a family of pharmacists. She originally lived a happy life with her parents and younger sister, Shinobu Kocho. However, one day, their home was attacked by a man-eating demon, and their parents were killed. Just as the Kocho sisters were about to be killed by the demon, the Demon Slayer Corps' "Stone Pillar," Gyomei Himejima, arrived in time and vanquished the demon. He then had the Demon Slayer Corps' aftercare personnel send the two sisters to relatives' homes. However, the two sisters did not continue living ordinary lives. Instead, through the Demon Slayer Corps' aftercare personnel, they managed to join the Demon Slayer Corps and become demon slayers, killing man-eating demons.

It is truly heartbreaking that Kanae Kocho, a woman of exceptional talent, mastered the "Flower Breathing Technique"—the most suitable breathing technique for her—through the "Water Breathing Technique" in just a few years, thus becoming the "Flower Pillar" of the Demon Slayer Corps. However, four years before the main character's appearance in the Demon Slayer anime, Kanae Kocho encountered Doma, one of the Twelve Demon Moons, and fought him for an entire night before being severely injured and dying. At the young age of 17, she passed away like a flower withering away, leaving this world with regret.

When her younger sister Shinobu Kocho arrived, Kanae Kocho was already on her deathbed. Before she died, she told her sister to leave the Demon Slayer Corps and live like an ordinary girl until she died of old age. However, Shinobu Kocho did not agree and instead trained hard in the Demon Slayer Corps to become stronger. When the Demon Slayer story began, she also became one of the Demon Slayer Corps' Pillars, the Insect Pillar. Later, she and Kanao Tsuyuri killed Upper Moon Two, Doma.

At this time, Shinobu Kocho and Kanae Tsuyuri were 14 years old, almost 15, and the other was even younger. However, the two beautiful girls were already showing the signs of becoming beauties. They were following behind Kanae Kocho, looking at the evil spirit Li Mo in the cage with a little curiosity!

"Tsk tsk, your two younger sisters look rather weak..."

Upon seeing the sisters Kanae and Shinobu, along with their adopted sister Kanao, the demon Li Mo glanced at the two girls who were just entering their teenage years and gave them a rather unpleasant evaluation.

"Hmph! My strength is not weak at all; I am a true member of the Demon Slayer Corps!"

Upon hearing Li Mo's assessment of the demon, the now exceptionally beautiful Shinobu Kocho couldn't contain herself. She jumped out from behind her older sister and shouted loudly at Li Mo, giving off an inexplicably adorable feeling of a kitten angrily bristling.

Compared to the beginning of the Demon Slayer anime, when Shinobu Kocho, the Insect Hashira, tried her best to imitate her sister's smiling demeanor to everyone because she had agreed to her sister's dying wish, the current Shinobu Kocho is undeniably straightforward. When she discovers that the demon Li Mo is speaking ill of her and Kanao Tsuyuri, she immediately jumps out to try and prove her strength. However, she doesn't realize that her actions make her seem like a child trying to show off.

At the very least, the demon Li Mo was unimpressed by Shinobu Kocho's efforts to prove herself, looking at her as if she were watching a performance. This made the perceptive Shinobu Kocho even angrier, and she even had the idea of ​​finding the demon Li Mo to have a good fight!

"Ninja, you're not allowed to be rude!"

Just as Shinobu was itching to try, Kanae interrupted her younger sister's rude behavior, subduing her and scolding her. Then, she turned to the demon Li Mo, who was in a special cage, took out a medical record book and a pencil, and earnestly apologized, asking, "Excuse me, Mr. Li Mo, could you tell me how you are feeling? Are you feeling unwell? Have you had any unusual reactions to the food we provided…?"

Well, since capturing the demon Li Mo and bringing him to the Demon Slayer Corps, and securing the treatment of being imprisoned at the Butterfly Mansion headquarters as a guinea pig for research, Kanae Butterfly has fully demonstrated her research spirit. Apart from initially extracting Li Mo's blood, hair, nails, and other things, she has been observing the condition of the demon Li Mo.

In the past, when the Demon Slayer Corps captured demons, they would throw them into Fujikasane Mountain as trial subjects for the official Demon Slayer Corps swordsmen's examinations. However, those were all man-eating demons who had eaten people. The Demon Slayer Corps was basically composed of members who survived attacks by man-eating demons. If the Demon Slayer Corps leader hadn't required them to capture some weak man-eating demons to serve as trial subjects for ordinary members who applied to join the Demon Slayer Corps, they would probably have been killed on the spot. It was only by throwing them into Fujikasane Mountain that they were able to survive for a while.

Li Mo, the demon, was an unlucky guy who was infected by demon blood and turned into a demon. If Kanae Butterfly hadn't spoken up and he hadn't actually eaten people, the Demon Slayer Corps wouldn't have let him go so easily. However, as a demon who feeds on humans, he still enjoyed the Demon Slayer Corps' extremely high prisoner treatment. Not to mention the steel-barred cell, he was also bound with special prison equipment covered in wisteria powder to restrict his movements.

Currently, Kanae Butterfly is trying her best to ensure the survival environment of the demon Li Mo while researching the differences between demons and humans, and whether demons can survive if they don't eat people, etc. Releasing the demon Li Mo is impossible.

"Well, I personally feel alright..."

Faced with Kanae's question, the demon Li Mo appeared lazy, half-lying in the cell and looking at the three beautiful girls in front of him. He mainly answered Kanae's question, occasionally glancing at Shinobu Kocho, who was fuming, and Kanao Tsuyuri, who was stunned. A strange look flashed in his eyes, but he did not let the three beautiful girls in front of him notice.

In any case, since the evil spirit Li Mo is currently a prisoner, any attempts to flirt with him would likely result in a harsh rebuke. It would be better to wait until he has fully integrated his powers and memories from other worlds and is freed before considering future matters.

……

"Then, Mr. Li Mo, please suppress your urge to eat people. Perhaps one day you will be able to get rid of your identity as a demon and then you can leave..."

Later, after receiving and recording the answer from the demon Li Mo, Kocho Kanae put away her medical record book. She then observed the demon Li Mo through the oil lamp and confirmed that there was nothing unusual about him. There were no signs of his cell being disturbed. She smiled at the demon Li Mo and said softly that she truly wanted Li Mo, who had been forced to become a demon, to be able to get rid of his demon identity one day.

However, including Shinobu Kocho and Kanao Tsuyuri, everyone knew how slim the chances of this hope appearing were. If demons could so easily suppress their cannibalistic impulses, then the Demon Slayer Corps wouldn't have been entangled with them for thousands of years without being able to do anything about them!

"Kanae, I hope so~!"

Upon hearing Kanae Butterfly's words, Li Mo's expression remained unchanged. After speaking, he lowered his head slightly as if closing his eyes to rest. Kanae Butterfly said a few more words, and when she realized that Li Mo did not reply, she said goodbye and left.

Kanae Butterfly wasn't quite sure. She was kind-hearted and hoped that demons could live peacefully with humans. But the demon Li Mo knew that, except for a very few exceptions, demons turned by the scoundrel Muzan Kibutsuji would have a hard time living peacefully with ordinary people. Beings that become demons are full of appetite from the very beginning. Their own family members and neighbors could very well become victims of the demons, not to mention the hunting days to come.

Otherwise, if the demons in the Demon Slayer world were merely like vampires who occasionally suck blood, or like Tokyo Ghoul who could survive for a long time by relying on corpses, it would be difficult to see the scenes of being frantically chased and killed by the Demon Slayer Corps. However, the demons in the Demon Slayer world are accidental creations. Once transformed, they basically frantically devour the humans around them. Incidentally, some members of the Twelve Demon Moons who have lived for too long have even developed the abhorrent situation of specifically targeting young girls and children as their food.

In a sense, the Demon Slayer Corps can only have a certain restraining effect on man-eating demons. For example, the scoundrel Muzan Kibutsuji is not so obedient. In addition, the Twelve Demon Moons will not gather together to face the Demon Slayer Corps without their scoundrel's orders. It is possible that the Demon Slayer Corps is not enough to kill the Twelve Demon Moons. After all, at the beginning of the original Demon Slayer anime and manga storyline, the Upper Moons of the Twelve Demon Moons had not lost any members for a long time.

Seeing Kanae and her two younger sisters leave the cell, the demon Li Mo casually opened the food box they had brought him, ate the food without batting an eye, and then closed his eyes for more than two hours to check the situation outside the cell before opening them again.

"Then, begin to fully integrate my power to strengthen and transform this demonic body, which is too limited..."

Chapter 2 The Newborn Ghosts and Gods

The demons in the Demon Slayer world seemed incredibly powerful to Li Mo, who had just transmigrated there. However, after merging the power and experience of multiple versions of himself through the [White Mist Space], Li Mo no longer regarded the so-called demons of this world as powerful.

Although, based on Li Mo's observations of the anime "Demon Slayer" and his own experience, the demons in this world are completely different from the demons, monsters, and ghosts of other worlds. Perhaps their essence is more like that of undead creatures such as vampires and zombies, and they fear sunlight and Nichirin Blades that possess the power of sunlight. However, apart from that, including the scumbag boss and Demon King Muzan Kibutsuji, these man-eating demons do not have any other obvious weaknesses.

It's not that their combat power is that strong. To put it bluntly, the destructive power of these cannibalistic demons is not heaven-defying. If we don't consider certain blood demon arts, they wouldn't be considered invincible even in the era of cold weapons. Moreover, we have now almost transitioned to the era of firearms, and the human side has the dominant advantage.

However, these guys' immortality is extremely abnormal. Apart from sunlight and the Nichirin Blade, there is no way to destroy them. Their regeneration method has exceeded the regeneration ability of ordinary creatures, and they can be considered immortal in a certain sense.

—Even the head and heart of the demons are not absolute vitals. Even if they are cut into mincemeat by ordinary swords, they can completely regenerate in just a dozen seconds. In terms of regenerative ability alone, even among the various alien races or monsters that Li Mo has seen in other worlds, few can compare to it. It can be said that its regenerative ability has reached a terrifying level. If it were not restrained by the Nichirin Blade and sunlight, and not burned to ashes by high temperatures, these demons would probably be difficult for even modern armies with firearms to contain.

However, the demon Li Mo disliked his current restricted demon body. Being restrained by sunlight and the Nichirin Blade was barely tolerable, but the cannibalistic thoughts that tormented him at all times were completely intolerable to the demon Li Mo. If it weren't for the fact that he had transmigrated and his time as a demon was relatively short, he probably wouldn't even need Kocho Kanae to intervene. He himself couldn't bear the act of feeding on the flesh and blood of his own kind.

Especially considering that he had acquired enough extraordinary power through his other dozen or so worlds in the [White Mist Space], if he still tolerated the various flaws of that man-eating demon, even the demon Li Mo would have to wonder if he was being mentally affected.

[So, based on the Yin-Yang Release from the Naruto world, by absorbing and fusing demon blood to remove its negative effects, and then enhancing one's own physical attributes...]

Once he confirmed that there weren't many people busy at the Butterfly Mansion headquarters, Li Mo opened his eyes and began to merge the powers of his multiple worlds without hesitation. He first merged the soul power and spiritual power as the main force, and began to change the nature of his demon body, or rather, he began to devour the demon body, and then completely sublimate it into a new extraordinary life.

Within the small cage, spanning only a dozen square meters, the body of the evil spirit Li Mo began to subtly swell. His body, originally dressed in ordinary clothes, was at most tall and strong compared to ordinary Japanese people. However, now transformed into a demonic form, his body was rapidly changing. The trace amounts of demon blood containing the Demon King Muzan Kibutsuji were quickly devoured and transformed by Li Mo's powerful soul and extraordinary strength.

It should be said that all the demons in the Demon Slayer world are born from the demon blood of the Demon King Muzan Kibutsuji. When these demons eat humans and humans with rare blood, they can gradually become stronger and even awaken various blood demon arts. However, if they are infused with the demon blood of the Demon King Muzan Kibutsuji, they can become even stronger rapidly.

Of course, as the scumbag boss, Muzan Kibutsuji wasn't doing charity by creating those man-eating demons with his own demon blood. He could not only use the demon blood he distributed to control those man-eating demons, but also set certain restrictions on them. For example, they couldn't mention Muzan Kibutsuji's name, otherwise they would be killed by Muzan Kibutsuji through his demon blood. Moreover, when necessary, Muzan Kibutsuji could even know the current location and other information of those man-eating demons through their gaze.