Awaken the Sharingan, kill Muzan and open your Mangekyō!

"Then turn on the markings!"

"Even if it's a life for a life, we have to kill the damned demon."

Bushigawa Shiya gritted his teeth and said.

As long as he could kill the upper rank, it didn't matter if he opened the mark early.

The other nine pillars were the same.

They were also ready to open the mark and exchange one for one with the upper rank demon.

Having said that.

With Uchiha Isha's reminder, the nine pillars began to calm down and became on high alert, no longer"inflated’

"Shimizu, don't be careless"

"Ixia has said so, we must not underestimate the strength of the upper demons"

"Although we have already put life and death aside, I still hope that you can survive if possible."

Ubuyashiki Yoya also said

""Yes!"

The nine pillars said in unison.

To survive... if they could do it, they would naturally want to survive.

"Shinobu, you might be a bit busy next."

"In addition to preparing to rush to the Swordsmith Village to help kill the Upper String Demon"

"During this time, I would like to trouble you to devote all your energy to researching drugs to fight against demons and help remove the toxins of demons, so that you can use them when fighting against upper-rank demons later."

"I will get a very good doctor to help you."

Ubuyashiki Yoya said to Kocho Shinobu.

Just as Uchiha Isha thought, he also thought of medicine.

Whether it was the poison for the demons or the antidote for the demon's blood poison, it was the same.

He knew that relying on Kocho Shinobu alone was not enough.

So, he planned to have a talk with Tamayo and invite Tamayo to cooperate with Kocho Shinobu.

Since the target was the upper demon and Muzan Kibutsuji, Tamayo would probably be willing to agree.

"Yes, I got it!"

Shinobu Kocho nodded slightly.

Not to mention the poison that can kill an upper-rank demon.

The blood poison of an upper-rank demon does need to be prevented.

She has not forgotten that her sister, Kanae Kocho, was poisoned by an upper-rank demon, which damaged her lungs and led to her death.

Although it has been difficult for her to come up with a corresponding countermeasure before, now she has the blood of an upper-rank demon provided by Uchiha Isha.

In addition, her lord Ubuyashiki Yoya will introduce her to other powerful doctors later.

Perhaps, she can research this antidote.

Of course!

The most important thing is to research a drug that can poison that demon to death. The poison of the upper-rank demon that only killed her sister.

If this upper-rank demon appears in the swordsmith village, she can just avenge her sister.

For this, she has been preparing for a long time.

Before this, she was even ready to use herself as the"poison".

As long as the opponent swallows her and becomes a"poison person", and is seriously poisoned, other swordsmen can kill it more easily.

And in Shinobu Kocho's opinion, the other swordsman responsible for killing that upper-rank demon must be Kanao.

Shinobu Kocho has never told anyone about this, not even Kanao knows it yet.

……

After completing various arrangements.

This time, the Ten Pillars meeting came to an end soon.

Since the upper-rank demons could not determine the exact location of the Swordsmith Village for a while, the Demon Slayer Corps still had a lot of time.

After arrangements, it was finally decided that Uchiha Ixia, whose Sunflower Sword was damaged, would rush to the Swordsmith Village first to forge a new weapon.

The other nine pillars then rushed to the Swordsmith Village one after another to lie in wait and ambush.

So.

About a day later, Uchiha Ixia arrived at the Swordsmith Village.

For the sake of safety and to facilitate support, the Swordsmith Village is not far from the Demon Slayer Corps headquarters.

The main reason is that the location is relatively hidden, built in the deep mountains and forests, surrounded by jungles and mountains, and there are many detours.

Therefore, it took a lot of time.

Otherwise, it would take about a few hours to get to the Swordsmith Village from the Demon Slayer Corps headquarters.

"Hello, Mr. Sun"

"I am the chief of the Swordsmith Village, Tetsuji Kawara Jintetsu. Please take care of me."

After entering the Swordsmith Village, Uchiha Isha was immediately warmly welcomed by the chief of the Swordsmith Village.

"I am, please take care of me!"

Uchiha Isha responded with a smile.

Although the Tiechi Kawahara Jintetsu in front of him was short and hunched, he was the most skilled swordsmith in the Swordsmith Village.

He also made many sharp Nichirin swords to help the swordsmen of the Demon Slayer Corps kill demons.

It can be said that he is a respectable existence.

"We have to thank Lord Hiruchi for notifying us in time. Our Swordsmith Village had enough time to prepare for the transfer."

Tetsuji Kawara Jintetsu bowed to Uchiha Isha and thanked him.

Within a day, they had already received a letter from the Demon Slayer Corps headquarters, and they also knew that the Swordsmith Village had been discovered by the upper-rank demons.

This made them very frightened.

Therefore, they were also very grateful to Uchiha Isha.

If Uchiha Isha had not informed them in advance,

I am afraid that the swordsmiths in their Swordsmith Village would have been wiped out and could no longer provide strong support for the Demon Slayer Corps' ghost hunting work.

The loss is not small.

"No where!"

"This is what I should do."

Uchiha Ixia responded politely.

Then, he came straight to the point and put forward this request.

In addition to rebuilding his own Nichirin Sword, there is also a weapon that he has never been able to obtain.

That is... the Nichirin Sword of Yoriichi Tsugikuni hidden in Yoriichi's Type 0 Mechanical Doll.

In the past, he was either hunting demons to become a pillar or practicing with the other nine pillars.

After finally finishing the practice, he hurriedly took on the task.

As a result, he did not have time to go to the Swordsmith Village.

Now, he has finally arrived at the Swordsmith Village and can finish what he needs to do.

"Please rest assured about the Nichirin Sword. I have asked Teshima Temple to reforge it with fine iron."

"I will also personally supervise and instruct. If we rush the work, it can be completed before the swordsmith village is transferred."

Tetsuji Kawarajin Railway.

The news that Uchiha Isha's Sunwheel Blade was broken was naturally passed on to them by the crow.

Almost at the moment of receiving the letter, Uchiha Isha's Sunwheel Blade had already begun to be rushed.

Originally, he wanted to do it himself after a long absence, but at this age, his health and physical strength are somewhat not good.

Letting him do it himself would delay the construction period.

He could only guide from the side to let Tetsuji perform at a higher level.

"As for the Nichirin sword inside Kotetsu's 0-style puppet, we don't know about it."

Tetsuji Kawara Shintetsu said.

Kotetsu is the current owner of the 0-style puppet.

His ancestor was the maker of the 0-style puppet.

"Unexpectedly, there are weapons left by the legendary swordsman inside."

"I will have someone call Xiaotetsu to see if there is such a weapon in the Zero Style of Yoriichi."

Tetsuji Kawara Jintetsu was quite emotional.

He was very interested in the weapons made during the Warring States Period. This was true for both the forging skills and materials of the Warring States Period.

Just like the Demon Slayer Corps, their swordsmith village had also lost some of its inheritance due to the attacks of demons.

Through Yoriichi Tsugakuin's Nichirin Sword, they might be able to discover some of the skills of their predecessors.

"That's troublesome!"

Uchiha Ixia nodded.

He was looking forward to Tsugikoku Yoshiichi's Sun Blade.

……

"Village chief, you are looking for me."

Tetsuji Kawahara Jintetsu sent someone to inform Xiaotetsu.

Xiaotetsu quickly brought his own Yuichi Zero-style doll to the home of the village chief Tetsuji Kawahara Jintetsu.

Since the person who notified him did not tell him the specific situation, he did not know what happened. He also did not know the reason why the village chief asked him to bring Yuichi Zero-style

"Xiaotetsu, this is Lord Hijiri."

Tiechi Kawara Jintetsu introduced Uchiha Isha to Xiaotetsu.

""Master Rizhu?"

As expected, Xiaotie, who learned of Uchiha Isha's identity, also thanked Uchiha Isha.

Now in the swordsmith village, it can be said that no one does not know Uchiha Isha's benefactor.

"This time I asked you to come here, Xiaotie, because there might be a Sun Blade hidden in the Zero Style of Enichi."

"The owner of the Nichirin Sword is the prototype of the Zero Style, the legendary swordsman Yoriichi Tsugakuni."

"We want to try to take out this Nichirin Sword to see if we can research the technology of the Warring States Period, and whether this Nichirin Sword can become a backup weapon for the Sun Pillar Master."

Tetsuji Kawara Jintetsu told Xiaotetsu the reason.

If the level of sophistication of this Nichirin Sword exceeds the current level of the swordsmith village, it is possible that the Nichirin Sword they made for Uchiha Isha is actually a 'backup weapon'.