Oboro made a deal with this world.
He didn't know whether it was his powerful soul or his identity as a time traveler that had caused the "change."
In short, he felt it.
The greenhouse was the dimensional wall, the trees were this world, and the branches, leaves, and fruits were the "power" and the power system.
Strictly speaking, this was true for all worlds the power system was an integral part. From the perspective of dimensional space, the world of Demon Slayer could have grown into a stronger dimension, but it failed.
It still had a large upper limit.
"Maybe it's because I possess transcendental powers and look at the world from a bird's-eye view that everything appears clearer," Oboro thought to himself.
Sunlight shone on his face, leaving Tanjiro standing beside him stunned.
"What you need to do is get familiar with your own body," Oboro explained. "Don't just blindly use this breathing technique. There are many meridians that can circulate in the human body, and you need to understand how to change them. Blood is the essence of the flesh and the cauldron of Aura. As long as blood flows, it can be stored and transformed."
After finishing, he stared into Tanjiro's stunned eyes and asked, "Did you write down the breathing rhythm I just showed you?"
Oboro's words were tactful.
Tanjiro understood what he meant that the Sun Breathing had many flaws and wasn't perfect.
Powerful breathing techniques must match the strength of the physical body. This was why Yoriichi Tsugikuni was able to create the Sun Breathing; he had an extraordinary body.
The human body was a treasure trove. Without a top-notch physique, creating a superb breathing method was absolutely impossible.
And yet the man before him who clearly looked extremely weak possessed breathing attainments even more terrifying than Yoriichi Tsugikuni, the benefactor of their Kamado clan?
How was this possible?
Although Tanjiro Kamado wasn't sure how powerful Yoriichi Tsugikuni had been, the mark in his soul the figure that occasionally flashed through his mind, brought real substance to the comparison.
"Ahem"
The next second, Oboro suddenly started coughing and covered his mouth with his hand.
"Sir!"
Tanjiro started, came to his senses, and moved to support Oboro.
"Although I've changed the circulation route of the Sun Breathing to avoid trauma to the body, the physical exertion required to move the limbs is still a bit too much for me to bear" Oboro raised his hand to indicate he was fine.
What he meant was that simply performing the Sun Breathing wouldn't cause harm.
He had added certain movements just to make it easier for Tanjiro to remember, aligning with the form passed down by the Kamado clan.
"To forcibly inherit this breath, your body has been damaged. There's no way to repair it But according to my modified method, I can help you live a little longer."
Oboro looked at Tanjiro and said, "Starting from the next generation, there will be no disadvantage of shortened lifespan."
""
Tanjiro's father also looked at his son.
Soon after, two maids came and placed the haori on Oboro again.
Oboro bent down, picked up a wooden stick, walked to the white snow, and drew a detailed meridian map.
The breathing technique Oboro knew came from ancient martial arts practiced on Earth an internal method close to the "Tao" and the secrets of the universe.
Although individual combat power on Earth wasn't as formidable as in the Demon Slayer world, Earth's civilization far surpassed it in brilliance and depth.
This world had evolved with a tiny country on Earth as its background. Compared to his homeland, there was barely any civilization to speak of.
Even this part of the background was, frankly speaking, just a copy of what their ancestors had described.
Thinking of this, Oboro's hand holding the stick subconsciously paused
The words of the tree god still rang in his ears.
He suddenly understood something.
What he represented wasn't just an individual but the entire group of people from Earth.
And his true identity and background.
All these things, in the first world he had traveled to under that mentality, under the premise of adhering to personal will, were difficult to perceive and feel.
He couldn't wake up at all.
He had reached the pinnacle in his previous world because of his Earth memories, the assistance of the system and his integrity and character, nurtured by the ancient charm of civilization in a specific environment.
Without Chinese martial arts, without the blood in his bones he would never have succeeded.
On the surface, he seemed to have taken advantage of being a time traveler who knew the plot and characters inside out. But in reality, what truly determined whether he could go far was his mind and character. When faced with many life-and-death decisions, one wrong choice would have ended everything.
Moreover, in the use and transformation of Nen abilities, he had actually integrated many "achievements" of his ancestors.
The breathing technique alone had allowed him to reach another level in controlling and transforming life energy.
Acupuncture and pulse diagnosis had allowed him to see more clearly the structures of different life forms
His strength in his previous journey was the result of this invisible "help."
Oboro smiled, suddenly feeling enlightened.
In his previous world, he had been like a blindfolded "novice player," and now the cloth that "blocked his vision" had been removed.
Pass it on There was no need to pass on personal will, but to pass on the civilization behind him to let another "flower" bloom in this world and era.
The people around were all affected by the smile that suddenly appeared on his face.
They didn't know what Oboro was happy about, but the emotion was genuine.
After finishing the diagram, Oboro began carefully teaching Tanjiro's father the improved Sun Breathing.
Tanjiro's father looked at the human meridian map drawn in the snow and listened to Oboro's understanding of the breathing method. It was mixed with refreshing concepts like acupuncture and Dan Qi as if a door to a new world had opened.
A vast, powerful ocean of knowledge washed over his brain!
It excited his nerves.
He listened with fascination, afraid of missing a single word.
If there was anything he didn't understand, he asked immediately.
Oboro patiently explained everything.
Tanjiro and his mother had never seen his father so wholeheartedly devoted to something, nor behave so reverentially toward a stranger.
It was like a student facing his teacher
Outsiders couldn't appreciate the mystery, but in Tanjiro's father's eyes, Oboro's image was already on the same level as Yoriichi Tsugikuni. He didn't know what kind of strength Yoriichi possessed, nor how powerful Oboro truly was.
Regardless, it was something far beyond his reach.
For the entire morning, the three women and the child did not disturb Oboro and Tanjiro's father.
The atmosphere between the two men was pure one teaching, one learning.
Only occasionally would Tanjiro's mother bring over cups of hot tea.
By afternoon, their conversation ended.
Oboro called Tanjiro over. The boy first glanced at his father, and after seeing him nod, walked to Oboro's side.
Oboro smiled and patted Tanjiro's shoulder, pointing to the human meridian map on the now-melting snow, and whispered: "Remember this map in your mind Don't forget it."
"Yes."
Tanjiro nodded vigorously.
At that moment, his father's large hand suddenly pressed on Tanjiro's head, and in a deep voice, he said: "Kneel down."
It was the first time Tanjiro had seen his father behave this way.
So serious.
His father had always been warm-hearted.
He obediently knelt before Oboro, as did his father.
Father and son performed the master-disciple ceremony to Oboro.
Because Oboro had not only taught them strength but had also saved the lives of the Kamado clan
"Hehehe Aren't you worried that I have ulterior motives?"
Oboro accepted their homage. Tanjiro's father was a smart man. In this world, no one would show favor without reason.
But when the power and status between two parties were too different, these preconditions became less important
"Sir, please speak."
Tanjiro's father raised his head, his face calm.
He hadn't really wanted to take Oboro as his master, and it wasn't certain the other would accept He had done it out of gratitude.
Drawing the meridian diagram on snow instead of paper indicated several things.
"Rise."
Oboro spoke softly.
"I will buy a house in the town at the foot of the mountain and come up to see you when I'm free. I don't have much time left, and you've fulfilled my wish by showing me this breathing method, so we're even. There's no need for master-disciple etiquette just consider us friends."
"Your wild vegetable soup is delicious"
He said this to the woman standing at the door.
Then he turned and left.
The two maids hurriedly followed, one on the left and one on the right.
The purpose of Oboro's trip was simple and had been achieved:
First, to judge Yoriichi Tsugikuni's power through the Sun Breathing.
Second, to find a way to stay on Mt. Sagiri permanently.
The blue spider lily only bloomed during daylight and for a very short time. It might be impossible to preserve, let alone bring down the mountain or transport. Even if it could be done, the medicinal effect would likely be lost.
To avoid any accidents, Oboro preferred to believe this flower could only be found by the Kamado family.
Furthermore, his harvest this time exceeded expectations.
He finally knew what he should do in this lower world and had "come into contact" with the will of this world.
Tanjiro looked ahead at the figure who needed a maid's help to take each step, at the black haori swaying in the mountain breeze. He glanced at his father and said, "Mr. Oboro smells good."
"Hehe"
His father smiled softly at his son and stroked his hair.
"So there really are people like this in the world."
"I thought they would never appear again."