Naruto: I'm really not an evil scientist!

Moreover, for some reason, he seemed to have a desire to devour the swordsman in front of him.

Since becoming Upper Moon One, he had not felt this urge to devour for a long time.

Because demons have a limit due to their inherent limitations, once they have consumed enough humans, no matter how many more they eat, they cannot increase their strength.

However, Ji Guoyansheng was temporarily unable to distinguish whether it was his own ghost blood's thirst for rare-blooded humans, or his own evolutionary instinct's thirst for the strange energy within the other's body.

In order not to be driven by his demonic instincts, Kokushibo temporarily suppressed them and did not directly devour the swordsman in front of him.

Chakra can be transferred. More than a thousand years ago in the ancient times of the ninja world, the Sage of Six Paths founded the Ninja Sect, distributed his chakra to humans, and taught them how to refine and use chakra to connect their thoughts.

The ninja who obtained chakra then passed it on to each other, from one to ten, from ten to a hundred, and with the addition of bloodline inheritance, soon everyone on that land possessed chakra.

Chakra transfer, or rather, its ability to spread, is very strong. If Kokushibo, the Wind Pillar, were to eat Sanemi Shinazugawa, there is a very high chance that he would gain the power of chakra.

However, it's clear that the other members of the Demon Slayer Corps will not allow him to kill the Wind Pillar.

"Breath of Flames, First Form: Shiranui!" Accompanied by Rengoku Kyojuro's passionate and spirited voice, a ball of flame shot towards Tsugikuni Iwakatsu at high speed like a volcanic eruption.

"Is this the Breath of Flame? It seems to be an excellent swordsman who has mastered the Transparent World."

Kokushi was somewhat surprised. He recalled that Hiruko had once said that the Transparent World and the ability to sense the flow of chakra were similar. "If the opponent hadn't shouted the name of the technique, I wouldn't have realized that the opponent was rushing forward at high speed."

"Breath of the Moon, Fifth Form: Lunar Calamity Vortex." Kokushiro calmly began to spin. This move was a defensive technique within the Breath of the Moon, which could be activated without drawing his sword.

By simply spinning around himself, he can generate a huge vortex of blade wind around his body, repelling enemies that rush towards him and leaving countless crescent blades in the trajectory of the blade wind, creating a combo-like slashing effect while repelling enemies.

As Kokushiro Tsugikuni had predicted, he easily deflected the thrust of the Flame Pillar, Kyojuro Rengoku, using this technique.

However, Kyojuro Rengoku had already advanced to a suitable distance and, using some unknown method, rescued Sanemi Shinazugawa from beneath Iwakatsu Tsugikuni's feet and pulled him to his side.

"Are you alright, Shinazugawa?" Rengoku Kyojuro asked with concern.

"Don't worry about me, I'm not going to die yet!" Sanemi Shinazugawa said unhappily, having lost both arms. "Be careful, this one is different from the demons we've encountered before. Even if its neck is cut off, it can't be killed directly."

Perhaps his only weakness is the sun; he'd better find a way to disperse the clouds in the sky.

Even during the day, if not directly exposed to sunlight, ghosts can move freely in the deep mountains where the sky is covered by clouds and haze.

Just like Rikuo Nura in Nurarihyon no Mago, in the early part of the story, due to his psychological discomfort caused by not recognizing the difference between human and yokai, he changed between day and night. During the day he was human, and at night he was a yokai. However, if it was a cloudy day, he could also transform into a yokai and freely lead a parade of 100 yokai.

"Is that so? I understand, thank you for reminding me." Rengoku Kyojuro's heart tightened; it seemed that this enemy was not only extremely powerful but also very difficult to deal with.

"A 'thread' that's hard to see with the naked eye? Is it that strange energy again?" After carefully sensing the situation with his ability to see through the world, Ji Guoyan discovered another clue. The reason why the other party was able to save his teammates was because a "thread" that ordinary people could not see stuck to the wind pillar and pulled it back.

"Is that swordsman who uses the Breath of Wind a rare blood type?" Kokushibo suddenly felt a little dizzy. Shinazugawa Sanemi's blood was like strong liquor to demons. Even smelling it would produce a dizzying effect similar to being drunk. However, Kokushibo had extremely strong control over his body and quickly regained his senses.

Suddenly, a thin mist rose up.

"Breath of Mist, Fifth Form: Sea of ​​Mist Clouds!" The Mist Hashira, Muichiro Tokito, had also arrived on the battlefield. Upon discovering an opening in the enemy's defenses, he launched a rapid series of slashes at the demon without hesitation.

"Hmm? This feeling, you are..." Kokushiro Tsugikuni wielded the Demon Blade and easily deflected Muichiro Tokito's attack.

At only thirteen years old, Tokito Muichiro is still too inexperienced. Even though he was the first to create the corresponding "internal energy" and even developed the Transparent Release bloodline limit, there is still a huge gap between him and his ancestor, Tsugikuni Iwakatsu.

With his ability to become invisible, Muichiro can conceal himself and his presence to a certain extent. Coupled with the unpredictable attack trajectory of his Mist Breathing technique, which is as elusive as clouds in the sky, he is undoubtedly a powerful swordsman.

However, he failed to break through to the realm of the Transparent World, so there was still an almost insurmountable gap between him and Kokushibo. Moreover, using the Transparent Release technique mainly conceals chakra and life force, but it cannot completely conceal one's fighting spirit.

However, the throbbing in his blood made Kokushiro Koku frown. After knocking the swordsman away with a single sword strike, he asked, "You seem to have a very nostalgic aura about you. What is your name?"

The moment Ji Guoyan Sheng asked his question, he stopped closing his battle aura, and an unprecedentedly terrifying aura emanated from him. The swordsmen present all changed their expressions, as they had never encountered such a powerful enemy before in their lives.

"Tokito... Muichiro." The Mist Hashira couldn't help but take a step back, his whole body drenched in sweat and trembling uncontrollably.

This is completely different from the harmless feeling of having your fighting spirit turned off before. It feels like a natural enemy, making your hair stand on end.

"Hmm...I knew it?" Tsugikuni Iwakatsu sighed. "It seems the name [Tsugikuni] has been lost."

"What? Tsugikuni isn't the one who uses the Sun Breathing technique..." Shinazugawa Sanemi, who had just taken a few steps back to stop the bleeding, widened his eyes, remembering what Kamado Tanjiro had said about the legendary swordsman Tsugikuni Yoriichi who used the Sun Breathing technique.

"Huh?" Rengoku Kyojuro was also somewhat taken aback.

"There's no mistake, you are the descendant of the child I left in the country of Ji, that is, my grandson." Ji Guoyan said with great certainty, and then praised, "You should not be fourteen years old yet, but you have already mastered such superb combat skills at such a young age. You are truly worthy of being a descendant of my clan."

After their brief exchange, he had already discovered that this descendant possessed remarkable talent, far surpassing the weakling who used the Breath of Wind, and had even begun to grasp the very essence of the Transparent World.

“Even though the family name has passed away and the bloodline has become diluted, it doesn’t matter much. My cells still remain in your body.” Tsugikuni Iwakatsu said in a matter-of-fact tone, as if Tokito Muichiro’s achievements today were all thanks to him, his ancestor.

Tokito Muichiro was initially taken aback, but quickly calmed down and said with a frown, "I don't remember having such an ugly ancestor as you."

Six eyes are just too bizarre; Tokito Muichiro finds them truly disgusting.

However, he may not know that the design of the six eyes was actually deliberately created by Ji Guoyansheng.

It doesn't have any other meaning, nor is it because it automatically mutated after becoming a ghost. It's a bit silly, just quite simple. Jiguo Yansheng's idea is similar to how handsome guys like Lanling Wang and Di Qing wear ugly and fierce masks when they are in battle because they are afraid that they are not fierce enough. The purpose is to create a deterrent and intimidating effect on the enemy.

"And are you insulting me?"

Tokito Muichiro said coldly, "Even if I really am your descendant, since several hundred years have passed, there must be no trace of your blood or cells left in my body!"

There was no point in saying more than necessary. Tokito Muichiro immediately activated his Demon Slayer Mark state, picked up his sword, and unleashed his ultimate technique to slash at his ancestor. Faint cloud-like patterns appeared on his face.

"Breath of the Mist, Seventh Form: Oboro!" Accompanied by a light mist, Muichiro Tokito appeared and disappeared in the clouds, making him elusive and unpredictable.

This move is a unique technique created by Muichiro. It is unpredictable and disruptive to the enemy. When it appears, it is as slow as a tortoise, but when it disappears, it is just as instantaneous.

The person was like a drifting cloud in the sky, hazy and indistinct, appearing and disappearing in an illusion, and their movements seemed slow but were actually fast.

After acquiring chakra, Muichiro Tokito combined his powerful Hidden Mist Technique, which he mastered without a teacher, with his breathing techniques, making him extremely disruptive. In addition, he developed the Transparent Release Kekkei Genkai, which created his unique fighting style.

With Tokito Muichiro unleashing his full power, even Tsugikuni Iwakatsu found himself in a somewhat difficult position.

Although he had mastered the supreme realm of the Transparent World, his perception seemed to be "blurred" when facing Muichiro Tokito's sword techniques.

In fact, even though he hadn't fully grasped the world, Muichiro Tokito was still within his perception, and he could still "see" him in general.

However, if we say that before Muichiro used his ultimate technique, Kokushibo was standing at the top looking down on his descendants, everything under the Transparent World was originally high-definition pixels, and seeing through Muichiro's movement trajectory was very easy, like reading a book on the palm of his hand, or even like slowing down and zooming in frame by frame.

Now it suddenly becomes AV quality, or you can still see it even if you're extremely nearsighted, but it looks very blurry, and even key parts are pixelated. Occasionally the screen goes black for a moment, and then suddenly it hits you hard.

Muichiro, who also possesses wind-style chakra, naturally understands the skill of "attribute enchantment" and, with the enhancement of chakra, has a sharp blade that can cut almost anything, making him extremely powerful at cutting.

*Splat!* Blood splattered as Tokito Muichiro left bloody gashes on Tsugikuni Iwakatsu's body, tearing his skin and even breaking off his arms and legs, making him look gruesome.

However, what appears to be a horrifying injury is actually no different from a tickle to a ghost, and it heals completely in the next second.

Without mastering the Crimson Blade, Tokito Muichiro was unable to inflict any effective damage on Tsugikuni Iwakatsu.

"Excellent combat skills, beautiful and fluid," praised Kokuichi Katsumi. "The rhythm is unique, the movements are very stealthy, and it can also confuse the enemy's senses."

He had never seen such a combat technique in the past few hundred years. It must have been created by Tokito Muichiro. Thinking of this, Tsugikuni Iwakatsu nodded and became more and more satisfied with this descendant.

Of course, while I was satisfied, I wasn't exactly amazed. After all, compared to Yoriichi Tsugikuni, everyone else seemed so ordinary, so insignificant.

"However, since you have not yet mastered the Transparent World, your combat skills still have significant flaws."

"Breath of the Moon, Sixth Form, Long Night Lonely Moon, Infinite!" As soon as Katsumi Tsugikuni finished speaking, he seized the opening and drew his sword for a swift strike.

The situation reversed instantly. Countless blades of wind brought forth a continuous stream of crescent blades, all crisscrossing and slashing in the same direction. Muichiro was sent flying, his clothes ripped apart as he floated in the air, and countless wounds burst open on his body, from which a large amount of blood gushed out.

*Thud!* Seeing that Muichiro, who had suffered a severe injury, seemed to be trying to get up and continue fighting, Tsugikuni Iwakatsu directly pierced through Muichiro's body with a single slash, pinning him to the ground.

Chapter 414

“My descendant, you are exceptionally talented. It would be a real pity if you died young. Why don’t you also become a ghost and join me…” Tsugikuni Iwakatsu loosened his grip on the hilt of his sword, squatted down, and said earnestly.

Muichiro Tokito has already awakened his Demon Slayer Mark, which is something that drains a swordsman's life force. Apart from Yoriichi, no one has ever lived past the age of twenty-five after awakening their Demon Slayer Mark, and it is impossible for another Yoriichi to appear.

He greatly admired this descendant, feeling that Muichiro had considerable talent and it would be a real pity if he died like this.

"Muichiro—!!!" Rengoku Kyojuro roared urgently, charging towards Tsugikuni Iwakatsu.

Just moments ago, Muichiro was in the lead, but unexpectedly, he was pinned to the ground in an instant.

Everything happened too fast; Kyojuro Rengoku had no time to stop it.

"First activation!" A stream of energy rippled from the corner of Rengoku Kyojuro's mouth, his muscles turned bright red, his body instantly became activated, his lung capacity doubled, and a blazing aura of chakra emanated from his skin.

"Breath of Flames, Fifth Form: Flame Tiger!" Enraged by the demon's repeated attacks on his companions, Rengoku Kyojuro brandished his blade, transforming it into a ferocious tiger engulfed in flames, and charged towards the demon that had harmed his comrades.

"What?" Under the intense heat of the flames, the air was distorted. Kyojuro Rengoku's attack was swift and fierce. By the time Kokushiro Tsugikuni realized what was happening, the scorching tiger was already close to his body, which really surprised him.

Previously, he had never taken these Demon Slayer Corps swordsmen seriously, treating them purely as a joke. After discovering that Muichiro Tokito was his descendant, he focused his attention on Muichiro, completely ignoring the other swordsmen.

"This power..." Unexpectedly, he seemed to have underestimated this seemingly dull-looking swordsman. It was too late to draw his sword now.

Boom! A deafening roar erupted, sparks flew, and flames raged across the sky.

Ji Guoyan was blasted away by this attack. When the smoke cleared and he stood up, his skin was charred black and wisps of white smoke were rising from it. His whole body was covered with cracks, making him look like a porcelain doll that had been hastily pieced together, as if he might shatter at any moment.

Kokugane's Blood Demon Art can transform his own body into a blade, and the generated blade can freely emit the same blade wind and crescent blade as the Moon Breathing sword technique.

Therefore, at the moment of being hit, Jiguo Yansheng chose to spin, like a hedgehog, growing blades all over his body and spinning, releasing blade wind and a large number of crescent blades, forming a simple protective shield that was almost a miraculous comeback.

Otherwise, he would have been completely destroyed by that attack, but he is still feeling unwell, as if his body is being constantly burned by a red-hot iron.

"The Crimson Blade? No, besides the Crimson Blade, there is also a scorching power." Jiguo Yansheng frowned, his face extremely ugly. Before he knew it, he had several wounds on his body that were difficult to heal.

This is utterly humiliating! Even Yoriichi didn't leave him with such an ugly scar! "Swordsman, what is your name?"

Ji Guoyan asked solemnly, becoming completely serious. The man before him was no ordinary person; perhaps his power was similar to the mysterious powers that Hiruko had been researching.

"Kyojuro Rengoku!" Kyojuro Rengoku pulled the sword from the Mist Hashira's body and said very seriously, "From now on, I will not let you hurt anyone again!"

Hiruko, a research ninja in the underworld, was immersed in his obscure and difficult-to-understand experimental data when he suddenly sensed that someone was using the secret technique he had improved. This made him feel something, so he stopped his work and looked up into the distance.

His eyes seemed to be able to see through the yin and yang realms along the lines of cause and effect, and nothing could escape his notice.

He saw that Mist Pillar Tokito Muichiro seemed to be on the verge of death, his life force flickering and about to be extinguished.

The Wind Pillar, Sanemi Shinazugawa, is withering away and won't live for many more years; while the Flame Pillar, Kyojuro Rengoku, is using the Seven Breathing Technique and the first five gates of the Eight Gates, burning his own life force to fight fiercely against the Demon King, Kokushibo.

The man and the ghost fought fiercely, with neither side gaining a clear advantage. It seemed inevitable that they would both be severely injured. Perhaps in a little while, they would be able to come down and join him.

However, after taking one look, Hiruko stopped paying attention. To him, while mortal swordsmen were excellent, they were at most at the level of Tanjuro.

Anyway, in this world, after a person dies, their soul will be taken into the underworld by him. It doesn't matter whether you die early or late; in the end, you will all become his excellent employees.

Perhaps, after being killed by the Flame Pillar Kyojuro Rengoku, Kokushiro could accept his transformation and become his guardian spirit, maintaining order in the underworld.

After all, he was Yoriichi Tsugikuni's older brother, so Tsugikuni Iwakatsu's soul still has some collectible value.

"What's wrong, Lord Hiruko?" Tamayo asked, somewhat puzzled, when she noticed Hiruko's distracted state.

After Muzan's death, her obsession dissipated, and after dealing with some trivial matters, she voluntarily bathed in sunlight and died.