A person in Japan, a sword that soars to immortality.

Inside the large house, the air was thick with the scent of incense, creating an eerie atmosphere.

Sakiri sat to one side, stroking the sword on his lap, making Taichi and Tamayo's eyelids twitch, unsure who would be the first to be stabbed.

"Ahem, let's get down to business. Look, Fu Zhi is sleepy."

"Huh? I'm not sleepy... That's impossible..."

Fu Zhizheng stared wide-eyed, scanning the group up and down, while his whole body blazed with the fire of Bagua (a Chinese astrological concept).

Upon hearing Taiyi's words, she was about to retort, but under that absolutely oppressive gaze, she immediately chose to prioritize saving her life.

"Miss Zhu Shi is a renowned doctor whom I went to great lengths to find. Her purpose in coming here is to help me with my medical research, and at the same time, to work with Fu Zhi to refine pills that can increase vitality, which are called external pills."

"The reason for doing this is..."

As the Taiyi system began to explain, it went from Taoist theories about Qi to his own understanding, to the application of Qi, and finally he discovered problems in everyone.

The expressions of the three people present changed from calm at the beginning to surprise, and finally to shock.

Tamayo was alright; she was just surprised by Taiichi's unique understanding of breathing techniques, or rather, Qi.

As for Zuoqie and Fuzhi, they both found it somewhat unbelievable after hearing that their life force was decreasing.

"Brother Taiyi, if it's really as you say, that my life force is decreasing, why am I not only unaware of it, but also feel that my physical condition is excellent?"

As the Yamada family's medical expert, Fu Zhi's understanding of the body far surpasses that of others.

Although Taiyi's martial arts skills have grown very rapidly, reaching a level that is beyond his reach, he is skeptical about the claim that there is a problem with his body.

"Do you know the term 'last gasp'?" Taiyi rubbed his fingers against the teacup, and then a small stream of water slowly rose from the cup, just like a cobra controlled by a flute.

Then, to everyone's astonishment, the water gathered in his palm, and as he circulated his true energy, the water began to boil.

After raising his head and looking at everyone again, he slowly began to speak:

"In the final moments of life, the instinctive survival response will naturally be triggered. It does not require your conscious control or deliberate perception. Life itself will unleash all its potential, burning everything, just to survive."

"But often at such moments, even after the fire has burned out, all that remains is... in vain."

Taiyi intensified the circulation of his true energy, instantly evaporating the water mass.

Just like a drowning person clings desperately to anything they can, even if they are unaware of it, their body still longs for this world.

Will they burn themselves in their last moments...?

Tamayo stared blankly at Taichi, thinking that if one day she could, she really wanted to personally bury Muzan.

"Then, Senior Brother Taiyi, if it's really as you say, how much of our lifespan have we lost in total?"

Remembering how Taiyi had treated her injuries and how he had made her feel the energy while they were drinking, Fu Zhi chose to believe him.

For a moment, the air seemed to freeze, the sound of breathing was clearly audible, and the hands hanging at the sides unconsciously clenched into fists.

After scanning the two people in front of him one by one, Taiyi took a deep breath, slowly closed his eyes, and said:

“Zoccher lost 10 years of his life, and you lost... 15 years.”

Name: Yamada Asaemon Tsukishima

Age: 19

【Lifespan: 50】

[Essence: 74.2]

Qi and Blood: 256.1

【God Soul: 4.2】

"I see..." Fu Zhi lowered his head, clenched his fists on the table, and said with a furrowed brow, "I want to learn more. I haven't figured out the human body structure yet."

Sorcerer pursed his lips, his eyes flickering with light and shadow, but he turned his head and looked at Taiichi with some regret.

I want to spend more time with you...

clap clap!

The sound of a slap rang out. Taiyi looked at the two of them speechlessly, and said with a wry smile:

"Why is it all like a life-or-death separation? After all I've said, all you've remembered is how you're shortening your own lifespans, and you've forgotten my original purpose?"

"Pills, pills, hey, Fu Zhi, cheer up, really."

Taiyi shook his head, suddenly feeling a mix of amusement and exasperation.

"Huh? Right, Brother Taiyi, you must have a way, right?" Fu Zhi lowered his head and scratched the back of his head, saying embarrassedly.

Just as Zoche was about to speak, he suddenly felt his hand being enveloped by a sense of security and warmth.

But the next second, seeing the sinful claw release her hand and head towards her thigh, she didn't hesitate to use her finger as a sword, employing the "Test Slash Style"—a wrist-cutting sword technique—to drive it away.

Ignoring the "harm" that Sōkichi had caused him, Taiichi couldn't help but smile as he looked at the relaxed atmosphere.

While refining external elixirs was intended to restore the essence and lifespan of Zuoqie and others, another purpose was for his own benefit.

He hadn't forgotten that he wanted to test the heroes of the world with his sword at the Heavenly Sacrifice.

The attribute conversion technique only lasts for 60 seconds, but he estimated that his battle would definitely last a long time.

Although he could recover instantly from his injuries, this was a national sacrifice, and he didn't want to be treated like a monster by the general.

You should know that Tokugawa Ienari is currently thinking about achieving immortality.

I don't want to reveal too many supernatural abilities and draw his attention to myself, that would be terrible. So the external core is my own battery.

On the day of the imperial trial, my health and mana were estimated to be around 400, seemingly invincible...

But never underestimate the heroes of the world!

Even in the era when Yoriichi Tsugikuni was no longer around, there were still samurai who slew demons; otherwise, how did the legends of Dojigiri Yasutsuna and Onimaru Kunitsuna come about?

At that time, powerful samurai among humans were no less capable than those of the Demon Slayer Corps.

If one is to become the best in the world, then one must stand above all other warriors with overwhelming and unparalleled strength.

Therefore, on that day, one must maintain peak condition at all times, and thus must use external elixirs to replenish energy.

"I wonder what kind of amazing feats the warriors of this world will bring me?"

"I really want to know who they are... Raizo said the Demon Slayer Corps would provide me with information, but why haven't we met them yet..."

Ok?

"Miss Tamayo, please excuse us for a moment, Raiju will be here shortly."

After Taiichi finished speaking, Tamayo immediately stood there dumbfounded.

But seeing that Taichi still had a calm and composed expression, she realized that the Naruto hadn't come here to kill her.

She quickly stood up, bowed to him, and then swiftly pulled the paper sliding door of the "Affiliated Academy" room before disappearing.

A few minutes later, two more people appeared in the large house.

One is the cheerful Raizo Seikanji, the Raiju Pillar, and the other is the expressionless Mai Asaka, the Sakura Pillar.

"Ahem, Taiichi, let me introduce you. This is......"

Before Raizo could finish speaking, Asaka Mai suddenly bowed and greeted Taiichi: "Greetings, Taiichi. I am Asaka Mai."

"Mai, you don't need to do this. Taiichi and we are..."

Raizo was stunned for a moment, then tried to reach out and pull the other up, but was stopped in mid-air.

"As a samurai, how can you forget etiquette? Raizo, you need to strengthen your training."

"Huh? Got it, hehe." Raizo chuckled foolishly.

Looking at the two rather strange people in front of him, Taiyi didn't need to guess to know what their relationship was.

However, he wasn't interested in gossip; what he wanted to know more about right now was which rivals he should be wary of.

After all, the Demon Slayer Corps is still very good at intelligence gathering.

Smiling at Raizo, who immediately understood Taiichi's meaning, Taiichi then solemnly pulled out a folded piece of paper and said in a deep voice:

"Brother Taiyi, your opponent this time is quite troublesome."

“Except for the general daimyo and the daimyo of the first domain, who did not send their strongest samurai due to the Tokugawa shogunate, almost all the other tozama daimyo sent their strongest samurai!”

"Based on our summary, it is worth noting that there are people who call themselves the Bear-Piercing Spear, the Unparalleled Strength of Uesugi Gyukimaru, and the Meteor Secret Sword Style of Maeda Nobuo."

"But what's most noteworthy is that recently, an unknown ancient swordsman has been challenging renowned sword masters everywhere. It's rumored that he can unleash nine slashes in a single second!!!"

Ok?

Taiyi didn't care much about the people in front of him, but why did this last one sound so familiar?

"Excuse me, do you have any information about the name of this move?"

Taiyi raised an eyebrow and asked thoughtfully.

"Yes, he never shies away from the name of his moves, because this warrior once said that no one can break his moves, which is an extremely powerful sword technique called 'Nine-Headed Dragon Flash'!"

As the Naruhashi of the Demon Slayer Corps, Seikanji Raizo was also intimidated by this powerful samurai.

However, upon hearing this, Taiyi revealed a relieved smile, and murmured:

"Finally, I've met an interesting opponent..."

"I knew it! How could the world of swordsmanship be complete without the Flying Heaven Sword Style!"