Naruto: I'm really not an evil scientist!

Perhaps this is related to the Kamado family's generations-long inheritance of the Hinokami Kagura. After all, the Breath of the Sun can imitate and utilize the power of the sun. With hundreds of years of inheritance of the Breath of the Sun, it is not surprising that the Kamado family's physique has changed and they are naturally adapted to sunlight.

However, perhaps because Nezuko's physique was not strong before she became a demon, and she had not practiced the Breath of the Sun, while Tanjiro Kamado had already mastered the Transparent World, the Breath of the Sun, and awakened his Demon Slayer Mark when he was turned into a demon by Muzan at the end of the story, and had already reached the top level of humans, he suddenly transformed into the ultimate demon king who was not afraid of sunlight.

However, none of this was a problem for Hiruko, as he did not need to conduct cruel human experiments to obtain perfect demon blood.

Hiruko, through Kaguya and research on the Divine Tree, mastered the technology of the Otsutsuki clan to modify their own genes to achieve evolution by creating chakra fruits. Moreover, the Oni-Garaku Technique and the power of the Gene Gaia Memory that she developed can modify and compile genes.

If he wanted, he could genetically modify the cute girl in front of him in an instant, turning her back into a human or into another species.

If the modification is based on the demon, he wouldn't even need to search for the so-called blue spider lily. He could directly use Nezuko and Tanjiro's blood and his own vast gene pool to perform data deduction and gene programming, directly modifying the demon's instinct to eat people, its ability to obscure and blur its memories of its human past, and its fear of sunlight, among other defects.

However, it would be bad if something went wrong if I experimented directly on Nezuko. Although I am very confident in my skills, it is still better to be cautious.

He needs to first unlock the Oni race encyclopedia, transform himself into Nezuko, and then, based on that, perform genetic modifications. Once he achieves the perfect result, he will apply it to Nezuko herself, and may even be able to transform into more Oni in the future.

So Hiruko stroked Nezuko's flawless white neck, gently inserted his index finger, and began to draw Nezuko's blood.

"Ugh... Ah~" Nezuko, who was still half asleep, couldn't help but cry out.

However, the sound she made was not a painful howl, but rather a captivating and pleasant one, with a hint of allure in her eyes.

Clearly, when Biru breathes blood, he cleverly uses the blood-sucking techniques of vampires like Dio, so that the person being sucked will not only not suffer, but will even experience a kind of excited lust.

Hiruko quickly withdrew his hand from Nezuko's neck. He only needed a little bit of blood to analyze the genes within, unlock the corresponding transformation chart, and transform into the corresponding species using his ever-changing abilities.

Hiruko flung his right wrist away, and the wrist, which had been flung away, rolled to the ground and instantly transformed into another, larger version of Nezuko. Meanwhile, his right hand, which had just been severed from his body, regenerated in an instant.

"The experiment begins." Hiruko left Nezuko by the bedside without looking back and walked towards Nezuko, who had been transformed from his wrist, a chilling smile on his lips.

Although he had conducted countless human experiments and was already an evil scientist who disregarded human ethics and morality, it was only at times like this that he could completely let loose and do whatever he wanted to his test subjects, recklessly conducting all sorts of excessive and cruel experiments.

In his early years in the ninja world, before he evolved into an ultimate life form and before there were materials as useful as White Zetsu, the most consumed material in his human experiments was his own clones.

To this day, many clones created by Hiruko by stitching together various bloodline limits still exist in the secret base deep underground in the ninja world and have not been completely destroyed.

Outside the door, the Kamado family waited anxiously, anticipating the treatment Nezuko would receive from the divine being—the research ninja Hiruko. Their level of tension was comparable to that of relatives waiting outside a delivery room.

They couldn't help but be nervous. Even when reviving the dead, Hiruko merely waved his hand and mobilized cellular energy for recombination. In the blink of an eye, all the Water Breathing swordsmen were reborn.

Hiruko has been staying indoors for three days to treat Nezuko, reportedly conducting a sophisticated physical modification experiment.

They were blinded by concern and failed to understand Hiruko's true thoughts. They could only judge the severity of Nezuko's illness by the length of time it took for the god to heal her, completely forgetting that Hiruko's intention was not to heal Nezuko and turn her back into a human, but to make her the new Demon King.

The door creaked open.

"He's out!" Tanjiro sprang up from the ground like a spring.

The door was pushed open, and a pretty little girl peeked out shyly: "Dad, Mom, Brother, Hanako, Rokuta..."

Nezuko Kamado now had demon horns growing on both sides of her forehead, and she was tall with long legs, fair and delicate skin, and a curvaceous figure, looking exactly like a big sister with a broad mind.

However, Nezuko herself is not quite used to her current strong and mature woman-like figure.

She was originally supposed to be a petite and cute beauty who was only 153cm tall, and also a little girl who liked konpeito (Japanese candy), and was only thirteen years old this year.

When Nezuko woke up, she suddenly transformed from the size of a watermelon to the size of Hoshiguma Yuugi's ample bosom, with a heavy chest, even though it wasn't small to begin with.

"Nezuko!!!" x3

"Sister!" x4

The entire Zaomen family rushed over excitedly.

"I'm sorry to have worried everyone." Nezuko, who is nearly two meters tall, came out and hugged the whole family.

"Hey, big sister, you've grown so big! You're even taller than Tanjiro! Did the High God help you grow bigger?" Kamado Takeo tilted his head and asked enviously. He also wanted to grow up and become taller as soon as possible.

"Well..." Nezuko scratched her cheek, feeling a little embarrassed, and said shyly, "More or less."

According to the High God, it seems that too much cellular energy was inadvertently injected into me, which is why I'm currently experiencing some nutritional excess.

In fact, Nezuko already possessed the ability to "change size at will," and with the addition of the more refined control over her body's cells that she obtained from Hiruko, she could revert to her original form at any time, concealing all her demonic characteristics.

However, Hiruko seemed to like her current appearance, so she temporarily suppressed her shyness and continued to maintain her tall and voluptuous figure.

"And what about the High God?" Kamado Tanjuro suddenly asked, wanting to express his gratitude to his family in person again, seeing them so happily reunited.

"Is there something you need from me?"

Hiruko, who had been sitting with his arms crossed and leaning against the doorframe, had a faint smile on his lips and seemed to be in a good mood. "If it's just gratitude, then there's no need. Speaking of which, Tanjuro, have you ever thought about revenge?"

"Is this... alright?" Kamado Tanjuro was taken aback, but then an expectation unconsciously appeared in his eyes, clearly indicating that he also wanted Muzan to sunbathe.

However, he has already become a priest in the underworld, and now he does nothing but indulge his own desires all day long instead of doing his job.

“What’s wrong with taking revenge? Don’t be too reserved or suppress yourself. I don’t have any outdated rules here. Just live according to your inner desires.” Hiruko said very freely. As a scientific ninja, he has always believed only in the power of science and desire.

"Yes, I understand." A flame of revenge ignited in Tanjuro's eyes, and his fighting spirit soared.

Although Tanjuro is an easy-going person, it doesn't mean he's a soft-hearted person who can let go of hatred. He won't let anyone who hurts his family get away with it.

At the same time, Hiruko's eyes gleamed with a strange light, and the pleasant, crisp sound of a coin falling and colliding echoed deep in his mind.

By indulging his subordinates, Beiluhu was also extracting the power of desire in a special way. Now he was becoming more and more skilled at manipulating cause and effect, and anyone who had a special connection with him was acting on their desires.

Whether or not it is ultimately realized, this process allows Hiruko to remotely extract the power of desire, multiply it to produce a large number of cell coins as his own energy reserves, which can be used for various scientific research experiments.

……

Inside the Infinite City, a group of human doctors who had been forcibly abducted and transformed into demons lay trembling on the floor, staring in terror at the ugly, cross-dressing monster before them.

"We are truly powerless to help you with your illness..." a doctor said hurriedly, swallowing hard.

"Useless! Mediocre! Despicable! Why are you all a bunch of useless trash? So useless, don't you have any shame?" Enraged, Muzan Kibutsuji smashed the doctor's head with a punch. The exploded head was like a shattered watermelon, with scarlet blood and brain matter splattering everywhere. The headless corpse also crashed to the ground.

At this moment, Muzan Kibutsuji's face was covered with disgusting and ugly purplish-red lesions and erosion marks. The purplish-red flesh was irregularly distributed, and his whole body was covered with disgusting lumps that looked like rashes. Even part of his eyeballs were stained, and his vision began to become blurred.

Muzan now looks ferocious and ugly. His once handsome appearance has turned into a deformed pile of rotten flesh, as ugly as his soul. Anyone who looks at him will feel disgusted and vomit.

"Since you're useless, then die! You trash don't deserve to live!" Muzan was now extremely agitated. In his rage, his right arm transformed into a flesh-colored whip, which he lashed out, severing all the useless doctors in front of him in half at the waist.

"Wait, Lord Muzan, I have... Ah!"

Even though these poor doctors had just been transformed into demons, they still could not survive this attack, because the whip carried Muzan's blood. These cells would not turn people into demons, nor would they grant demons more power.

Instead, it can destroy all of the opponent's cells according to Muzan's will, and kill them with just one hit.

"what?"

Muzan's expression changed, and he immediately walked over. "What were you trying to say?"

"I...I've seen this illness before..." Before he could finish speaking, the doctor vanished completely.

"Hey, you bastard, explain yourself before you die! Damn it, how dare you die before you've even cured me?! Why didn't you say so earlier? Are you deliberately trying to anger me? You despicable scum!"

Muzan grabbed the deceased by the collar and roared furiously. History was repeating itself; he once again personally killed the doctor, severing the clues.

Moreover, Muzan never reflected on whether he was too irritable and always took his anger out on others. He disregarded life and would kill others at the slightest inconvenience. In his mind, the fault always lay with others. Even when he killed the doctor with his own hands, he still felt that the doctor was the one with the problem.

Muzan is a being more vulgar than frog urine and more repulsive than rotten flesh in a garbage can.

Muzan was furious and anxious. For some reason, he suddenly developed a chronic illness, which not only made him ugly, but also reminded him of the helpless time a thousand years ago when he was weak and lying on his sickbed.

The disease he has now is less of a disease and more of a curse. Even if he cuts off the diseased part or breaks it into small pieces so that the healthy flesh can regenerate, he will still get this strange disease again after a while.

This was indeed a curse, originating from Kagaya Ubuyashiki. When Hiruko healed Kagaya Ubuyashiki, she used her ability to transfer karma, allowing Kagaya Ubuyashiki to completely get rid of the curse.

Otherwise, even if he is cured, Kagaya Ubuyashiki will fall seriously ill again after a while, which is only treating the symptoms and not the root cause.

However, Hiruko did not completely eradicate the curse of the Ubuyashiki family, nor did she remove the curse from Ubuyashiki Kagaya himself. Instead, she directly transferred the curse from Ubuyashiki Kagaya to Muzan.

Chapter 409

However, on the other hand, the curse that has plagued the Ubuyashiki family for thousands of years was caused by Muzan's evil deeds, which is why these blood descendants of the same lineage are so miserable. Muzan should have borne these curses.

Therefore, if Muzan wants to break the curse, he must kill Ubuyashiki Kagaya, the source of his own curse. And if Ubuyashiki Kagaya, who has recovered, wants to completely remove the curse that still exists in his descendants, he must also completely kill Kibutsuji Muzan, the source of all evil.

Kagaya Ubuyashiki had already figured this out with the help of Master Hiruko No. 1, while Muzan, that scumbag boss, was still unaware that this was a strange disease that the Ubuyashiki clan often suffered from after killing the doctor, and couldn't immediately connect it to the so-called curse.

"Damn it, they're all useless! We need to find that traitor Tamayo as soon as possible..." Muzan Kibutsuji's expression was uncertain. Now he could only pin his hopes on Tamayo, the traitor.

Over the course of thousands of years, Emperor Shitian has become well-versed in a wide range of books, learning medicine, physiognomy, divination, and countless martial arts. He can even create his own Sacred Heart Technique based on the characteristics of the Phoenix Blood. On the other hand, Muzan Kibutsuji, this good-for-nothing, is either ignorant or simply not smart enough, so his learning is futile.

When Muzan disguised himself in human society, in addition to seeking out wealthy merchants and high-ranking officials to ensure that he could still live a life of luxury, he would also often stay in the homes of herbal medicine merchants or doctors, frequently studying his own demon blood and delving into medical skills in an attempt to solve his own defects.

However, to be honest, after more than a thousand years, his research level is still terrible, and his medical skills are even worse. He is an absolute waste of space.

Even in modern times, Muzan still hasn't figured out a way to solve his own flaws. The only clue is the medicinal ingredient mentioned in the notes left by the doctor a thousand years ago—the Blue Spider Lily.

Therefore, Muzan was always searching for the Blue Spider Lily, but in reality, even if Muzan found the Blue Spider Lily, he would not have been able to solve his own defects without Tamayo's help.

Since the Blue Spider Lily is only a medicinal ingredient, Muzan, this useless idiot, has no idea how to develop it into a medicine that can solve his own defects, nor does he have the ability to do so.

Therefore, even if he found the Blue Spider Lily, Muzan Kibutsuji could only be powerless and furious, unlike Kars, who was originally a genius of the Night Clan and could directly evolve into a perfect ultimate life form by finding the perfect Aja Red Stone, because Kars' evolution path was researched and planned by himself.

"But if we go looking for this traitor in a big way..." Muzan Kibutsuji's face grew increasingly gloomy; he was now very conflicted.

Tamayo's defection during those decades of his weakness was a thorn in his side. If the other demons found out about this, he would undoubtedly lose all his prestige. When they realized that his control was not absolute, would those useless people develop disloyal thoughts?

Wouldn't that put me in danger?

Muzan, that scumbag boss, is even more scumbag than Diavolo. He is very cowardly. Although he has great strength and almost absolute control over demons, he never allows any demons to gather together because he is afraid that some demons might escape his control and that his rule might be overthrown one day.

He never allowed the ghosts to reveal his name, only to use "that person" as a substitute, for fear of revealing his whereabouts.

Moreover, despite being a thousand-year-old demon king, Muzan never even served as a daimyo or general, nor did he ever rule Japan. Unlike Indra, who was once an emperor, Muzan kept a low profile as much as possible. Most of the demons he created were just cannon fodder used to divert attention from others.

In fact, the demon race did not completely take over Japan; instead, it became something like urban legend, a story used by adults to scare children, which shows how afraid Muzan was of death.

"I can't worry about that now." Muzan gritted his teeth. Although the lesions in his body weren't having a huge impact, this unknown and bizarre change terrified him.

However, despite saying this, Muzan still did not order the demons to search for Tamayo at all costs. Instead, he secretly used his cells to order Rui, the Lower Rank 5, to capture Tamayo, who had run away on his own.

Because the drug developed by Tamayo could potentially free demons from Muzan's control, Muzan dared not directly mobilize all twelve demon moons, as he did not trust anyone.

The Lower Moon demons are weak, so even if they escape control, the losses won't be that great. Moreover, Rui's obsession is "bonds," and he won't let any of his "family members" who run away go unpunished. Furthermore, Tamayo killed her own child with her own hands, so there's no way Rui could be turned by Tamayo.

Moreover, Muzan Kibutsuji harbors a special affection for Rui, the fifth Lower Moon.

Both were bedridden due to illness and suffered greatly from their ailments. Both had severed ties with their blood relatives and had mental problems. In many ways, Rui was very similar to Muzan, which is why Muzan was quite fond of him.

Not only did he break the taboo he set for himself, allowing Rui to gather other ghosts to form a so-called family, but he also personally went to comfort Rui. Although it was a twisted brainwashing, it also highlighted his care.

That is why Muzan is now ordering Rui to collect as many "family members" as possible, so that these demons can join Rui in a large-scale search for the traitor Tamayo. In the process, they should also capture as many doctors and other Nakime as possible and send them back to the Infinity Castle, even if it attracts the attention of the Demon Slayers.

The reason Muzan issued this order was not because he valued Rui so much, but because he was prepared to abandon Rui at any time. After all, it was Rui who wanted to find Tamayo and capture the doctor to play house, so what did it have to do with him, the Demon King Muzan?