Doraemon for an imperfect world

"Ok!"

Jiguo Yuanyi couldn't help but become alert. "Xiao Shi died? When? Why?"

257

Chapter 257: The principles of breathing techniques.

Not long after, after listening to Ubuyashiki Teriyaki's account of what happened, Tsugikuni Yoriichi couldn't help but fall into a long silence.

"How could such a thing actually happen? How sad."

Doraemon, standing by, hugged his chest and nodded seriously.

This guy named Muzan Kibutsuji is so bad!

"So if there's anything I can do to help, please let me know."

Tsugumi Kuniichi looked at Ubuyashiki Teriya and said, "As long as I can do it, I will do my best."

"Great!"

Upon hearing this, Ubuyashiki Teriyachi's breathing became rapid.

If Tsugikuni Yoriichi had the help of this legendary swordsman and this future robot, perhaps his family's thousand-year-old wish would really have a chance to be completely fulfilled in his generation!

"but."

Tsugikoku Yuichi said this and looked at Doraemon sincerely, "I would also like to ask for your help regarding Xiaoshi's matter."

"No problem, just leave it to me."

Doraemon patted his chest confidently and said, "If it's inconvenient in this era, then I'll take my wife to the future to give birth."

However, if there are so many people, it would be a bit troublesome to use the Time Belt, so in this case, we need to use the following:

"——Space-Time Switch!"

Doraemon took out a green remote control connected to a yellow stick and a piece of chalk, looked at the house behind Tsujikuni Yuichi and said:

"Let me see, is it okay if it's roughly the area of ​​this house?"

"of course can."

Ji Guoyuan nodded.

"Okay, let's all walk into this circle together and continue like this."

Doraemon said this and gently pressed the switch of the prop. Immediately, the area circled by chalk began to change. The dimension of time was reversed and replaced. The same spatial units spanning a time scale of five hundred years were exchanged with each other.

"In this case, we have arrived in a world five hundred years from now."

Doraemon put the props back into his pocket and said, "Then let me find some props that can be used as security when Mr. Yunyi defeats Muzan Kibutsuji..."

"No need."

Ubuyashiki Teriyachi said, "Leave the security mission to us. It has always been our responsibility to protect innocent people from the harm of evil spirits."

"OK then."

Doraemon said, giving up the idea of ​​searching his pockets, and then couldn't help but ask curiously, "By the way, about the breathing method, how exactly does it improve physical fitness so much?"

It is really curious about this. After all, the humans in this world have neither undergone genetic modification nor have any supernatural powers. How can they improve their physical fitness so much just by breathing?

Let Nobita study when he gets home, so that he won’t be beaten by Shizuka in every physical education test.

"It's exhaust gas."

Tsugukuni Yuichi explained, "I've observed that human lungs aren't fully utilized. Each exhalation doesn't completely expel waste gases. The remaining waste gases are absorbed into the body along with the air brought in by the next inhalation. Therefore, simply changing the way we breathe can overcome the current limitations of human capabilities."

It turned out to be the case.

Doraemon thought with sudden enlightenment.

Allow the body to absorb more oxygen, which can improve physical fitness.

"But is this okay?"

Doraemon couldn't help but ask, "If there is a lack of carbon dioxide, the human body will feel very uncomfortable, right?"

Although humans exhale carbon dioxide every time they breathe, if the body fails to take in enough carbon dioxide, it will experience a series of adverse reactions such as rapid breathing, wheezing, chest tightness, shortness of breath, muscle tremors, dizziness, and tingling pain all over the body.

Tengen Uzui folded his arms, narrowed his eyes, and nodded. "For a swordsman with less strength, maintaining the breathing method for a long time would be very painful at first. Therefore, being able to adapt to the breathing method 24 hours a day, that is, to fully concentrate on it, is the most basic requirement for becoming a pillar."

Is it possible to adapt to this kind of thing?

Well……

Nobita definitely can't do this, so it's better not to let him practice this.

However, if it is a matter of adaptation, it should be possible to solve it by using an adaptation light, right?

Well, even if there was an adaptation light, he definitely wouldn't have the patience.

——Dividing——Line——

boom--

In the Infinite City, Muzan swept all the chemical tools on the table with force. His anger, which was caused by fear, spread throughout the Infinite City like a substance. Many evil spirits huddled in the corners and trembled, as if they were afraid that they would accidentally anger this moody thousand-year-old ghost king and become victims of his anger.

There have been precedents for similar situations. After learning that the upper-rank master had died in battle, he executed several demons that he disliked.

Damn it, damn it! Damn it!!!

Muzan couldn't help but clench his fists. He hated changes. Almost all the changes in the past thousand years were degradation to him. Why couldn't this damn world always go according to his wishes? Why couldn't everything stay the same as it was a thousand years ago when he could do whatever he wanted in the world!

First the Demon Slayer Corps appeared, then Tsugokuni Yoriichi was born, and then the changes that came to Japan due to the Black Ship Incident. He hated this feeling, hated the feeling that everything was out of control.

He is obviously a god-like creature that is infinitely close to perfection!

But even so...

Muzan placed his slender, pale fingertips against his forehead, recalling everything that had happened before.

First, the sun appeared out of thin air at night. That might be understandable. After all, he had been exposed to foreign knowledge in order to find a way to overcome the sunlight. He certainly knew the concepts of ultraviolet rays and ultraviolet lamps. Humans can create lamps that glow at night, and perhaps they can also create lamps that are like the sun - this is also one of the changes he hates.

But he really couldn't understand Douma's death.

Muzan recalled the moment when Douma was knocked away, the unrivaled and unshakable pure power, the scene rising above the clouds, and the dazzling light standing under his feet.

Could it be that another monster like Yoriichi Tsugikuni has been born in the world?

As for those monsters...

"Jushi."

Muzan said with gritted teeth.

It must be her. She disappeared after she got out of his control. She must have used his blood to create other ghosts, and even created a ghost that could overcome the sunlight - that was why he turned her into a ghost!

but……

When Muzan thought of the scene when Douma was knocked away, he couldn't help but feel a lingering fear.

This guy is even scarier than Yoriichi Tsugikuni.

So, how about hiding in the Infinite City for a hundred years?

Anyway, human lifespan is very short, only a hundred years.

258

Chapter 258: Fishing for the Sun.

No!

Muzan couldn't help but think, what if that monster also turned into a ghost that could overcome the sunlight, and then lived a hundred years later?

Judging others by oneself - although this word is a derogatory term - Muzan feels that no one can refuse to be a perfect creature without any flaws, and those demon hunters in the Demon Slayer Corps who are his enemies for ridiculous reasons are just stupid.

No, we must investigate what happened.

Thinking of this, he walked to the side.

"Master Wuhan."

A ghost named Shen He who was passed by Muzan smiled flatteringly and said with the mentality of pleasing his superior, "Don't worry, even if Douma-sama is gone, we will continue to help you eliminate those annoying ghost hunters."

"Don't worry?"

Hearing this, Wuzan paused, and the terrifying murderous look in his eyes made him tremble all over. "Are you saying that I'm afraid of those humans?"

"No, no, no, I have absolutely no such intention!"

"So you think I'm wrong?"

"what?"

Shen He was stunned for a moment. "No, no, I..."

Before he could finish his words, one of Wucan's arms had already transformed into a giant beast of flesh and blood and swallowed him whole:

"Nothing is wrong. My will is absolute. I will never make mistakes. All decision-making power belongs to me. You have no right to object. If I say something is right, it is right. If you dare to contradict my will, you deserve to die."

After casually executing his short-sighted subordinate, Muzan suddenly felt a lot more relaxed.

"Continue investigating, even if it costs your insignificant lives, you must find out what happened there."

The voice of Muzan Kibutsuji resounded throughout the Infinite Castle, with layers of echoes that made every ghost there tremble and kneel on the ground, obeying the orders of the Ghost King without resistance, and then disappeared on the spot with the sound of a pipa.

——Dividing——Line——

"In that case, I will go back and gather all the team members for concentrated training."

Ubuyashiki Teriyachi stood in front of the Anywhere Door and said, "Until we find out about Muzan Kibutsuji, I'll leave the task of teaching them to you."

"I'll do my best."

Tsugikoku Yoshiichi said.

"Goodbye, Mr. Ubuyashiki."

After the Demon Slayer Corps leader and his two accompanying pillars left, Doraemon closed the Anywhere Door and put it back into his pocket. "But I didn't expect that Mr. Yoriichi lives on the same mountain as Tanjiro's house?"

"I've been wanting to ask about this for a long time."

Tsugikoku Yoshiichi looked at Tanjiro's earrings and asked, "Can you tell me where that came from?"

"Huh? This?"

It was then that Tanjiro realized that Tsugikuni Yoriichi was wearing the same earrings as him. "Actually, I'm not really sure, because my family made me wear them since I was a child."

"That's it."

Tsugikoku Yoshiichi nodded slightly, as if he understood something. "In that case, shall we start training now?"

"It's difficult to achieve results in a short period of time."

Doraemon said, "In that case, we might as well think of other ways to restrain Muzan Kibutsuji. After all, Mr. Yunichi also let Muzan Kibutsuji escape five hundred years ago, right?"

"How to control ghosts?"

Tanjiro thought for a moment and asked, "Wouldn't that fluorescent lamp from before work?"

"Because it's just a lamp after all, it's actually quite fragile."

Doraemon explained, "So, in order to defeat Muzan Kibutsuji with greater certainty, let's go and pick the sun from the sky."

Tanjiro: “…Huh?”

"Hehe, watch carefully."

Doraemon first took out a bamboo dragonfly and gave it to the two and himself to wear, then flew up and said, "Follow me."

Tsugumi Yuichiro first looked at his wife who was pregnant with a big belly and was about to give birth in the room, then he smiled gently, tapped the ground with his toes, and flew up.

"You're so skilled at it the first time?"

Seeing this, Tanjiro couldn't help but exclaim, "That's amazing! It was really hard for me to get the direction right when I first tried to fly."

"This seems to be able to directly read my thoughts and adjust the direction."

Tsugikoku Yuichi shared, "If you find it difficult to grasp the direction, try to clear your mind for a while."

"Well, the bamboo dragonfly can indeed read brain waves."