Demon Slayer: Can I add points to my Breathing Technique?

"Strengthen it, make it bigger, until it becomes a machine that can function even without me."

"After that, I found that swordsman, who was also a trainer."

He raised his head, his gaze sweeping over Ren and Xia Xi, and that gentle smile reappeared on his face.

"I chose to become a Demon Slayer not just because of hatred."

"But... I can no longer bear that feeling of powerlessness."

"I cannot tolerate the existence of such pure 'evil' in this world, and the fact that this evil can befall anyone so unfairly and randomly."

"Wealth and status cannot escape this sense of powerlessness, and neither can the Igarashi family's wealth."

"The existence of ghosts far transcends human ethics and common sense. Humans could never catch up with them even if they spent their entire lives trying."

"This is a constraint on humanity, and also a boundary."

He touched the Nichirin Blade at his waist.

The light blue tassel of the knife, flowing like water, swayed slightly, as if responding to him.

"Only breathing techniques."

"It can break the boundary between humans and ghosts... no, it can even transcend that boundary."

The story is over.

The carriage remained silent for a long time.

Shinobu bowed slightly and said softly, "I'm sorry to have reminded you of painful memories."

"It's alright."

Igarashi smiled and shook his head.

"It was just a momentary feeling. Besides, it's what motivates me to keep going."

Xia Xi, standing to the side, then spoke.

My senior brother is indeed educated.

The way he speaks is different from others.

……

After getting off the train in Gunma Prefecture, the local members of the clandestine organization brought new mission information and clues.

The situation is worse than they had anticipated.

The initial report stated that only one Class B swordsman had gone missing while investigating the plague in the town.

But in the past two days, not only in their current town, but also in several surrounding villages and towns, cases with similar symptoms have appeared.

In the early stages, patients may experience itching and redness all over their body.

Then I started to have a fever and cough.

Within three to five days, a person will rapidly weaken, dying as if drained of blood.

Shinobu Kocho lifted the medicine box she was carrying on her back.

Looking at Lanzhu and Xiaxi beside her, her young face carried a seriousness beyond her years.

"The local doctor diagnosed it as malignant tuberculosis."

"But according to the intelligence mentioned, the transmission pattern does not quite conform to medical principles; it is not droplet or airborne transmission."

Many close contacts were not infected.

"On the contrary, it was some strong and healthy people, or strangers who had nothing to do with each other, who fell ill."

She paused, then looked at Xia Xi, who was looking around.

Since Sister Kanae says you also have some decent medical skills, then let me see what kind of womanizer you really are.

"Mr. Jiuche, what do you think?"

Xia Xi snapped out of her reverie and casually asked, "Do you think someone poisoned the place at a specific location?"

Upon hearing this, Lan Zhu frowned.

The disappearance of even a Class B swordsman cannot be equated with this epidemic.

If it was indeed intentional poisoning, they might need to investigate a much wider area next.

After all, even an ordinary person could do this.

Shinobu shook her head: "It's going to get worse."

Take a sealed glass jar out of the medicine box; a small amount of grayish-white powder remains at the bottom of the jar.

This is a sample that Yin sent not long ago.

"This is residue extracted from the lungs of the first victims. It's not bacteria, nor any known toxins. It will...grow inside the host."

Lan Zhu adjusted his glasses: "Could it be a fungus?"

Xia Xi, however, said with absolute certainty: "No, it should be Blood Demon Art, right?"

Xiao Ren stared at Xia Xi with some surprise.

The other person's judgment was the same as hers.

It's not difficult to realize that this is a derivative of Blood Demon Art, but to do it so quickly and with such certainty...

Could it be that this big radish really has some special abilities?

Shinobu Kocho was naturally unaware of Natsumi's reasoning.

In a Japanese RPG game where you fight monsters and level up, a strange plague and an unknown toxin appear?

Isn't that clearly a trick by enemy personnel?

Blood Demon Art, absolutely Blood Demon Art.

Moreover, there was another point that solidified Xia Xi's belief.

The residue in that jar...

My medical skills, pharmaceutical skills, poison-making skills, and resource gathering skills are all completely unresponsive!

That's not Blood Demon Art, what else could it be?

Chapter 70 Plague X Butterfly

How did you determine that?

Shinobu asked, her tone carrying a subtle hint of testing.

Xia Xi: "It's a sixth sense, you know what a sixth sense is?"

"Some people can see things with their mind's eye, and they can see even more clearly when their eyes are covered."

"Some people have an extraordinary sense of smell; they can not only distinguish odors but also detect emotions."

"Some people have such keen hearing that they can not only hear the thoughts of others, but also the breath and thoughts of all things."

After saying that, Xia Xi pointed to his head and made up a story in a serious manner.

“But I am different.”

"This is the super sixth sense I gained through extremely arduous training and battles, by developing the 'universe' within my own heart."

"Listen to me, patience is definitely the right thing to do."

Xiao Ren looked at Xia Xi with a suspicious gaze: "If you don't want to talk about it, that's fine. Besides, it's very impolite to call a girl by her first name."

Xia Xi shrugged: "Yes, Miss Butterfly."

The Storm Pillar, however, fell into deep thought.

So, Jiu Che is someone with a special constitution...

Thinking of Xia Xi's amazing actions before, Lan Zhu had no doubts whatsoever.

Shinobu Kocho stared at Natsumi for a long while.

She then chuckled softly, "It seems you are indeed a very special person, just as my sister said."

She put away the glass jar, and also put away her little bit of dissatisfaction with Xia Xi.

"If it's Blood Demon Magic, then the treatment approach will be completely different."

"We need to find the caster first, or... develop a special potion that can counteract the Blood Demon Art."

The group put on the special masks prepared by the hidden members and then stepped into the town shrouded in an atmosphere of sorrow.

The streets were deserted, with only the occasional pedestrian wearing a mask hurrying by, their eyes full of wariness.

During this period, more than a dozen people have died in the town.

When they met the local doctor, the elderly man with gray hair almost collapsed and knelt down.

"You must be doctors from Tokyo!"

"This illness... I really can't do anything about it!"

"So many people have died, we've tried every remedy imaginable, even the Western medicines from the pharmacy have no effect."

"We can't even figure out how we got infected."

"Damn it, what kind of strange disease is this?!"

After calming the nearly collapsing old doctor down, the three of them, guided by Yin, headed to the back of the clinic.

More than twenty patients were lying in the temporary isolation area.

Suppressed coughs rose and fell, and the air was filled with a mixture of pain and mold.

Shinobu Kocho put on special gloves and began to inspect them one by one.

The Storm Pillar chose to explore the surrounding environment for clues, while Natsumi was assigned to stay behind to protect and assist Shinobu Kocho.

However, he naturally did not intend to passively wait for the "plot" to unfold.

Instead, he went to each of these patients one by one, trying to see if he could do anything with his medical skills.