The breathing method, the full name of which is the [Concentrated Breathing Method], is a general term for the techniques created by the swordsmen of the Demon Slayer for generations, which can fight against evil spirits in human bodies.

It mainly strengthens the heart and lungs with a special breathing rhythm, so that the blood can absorb a large amount of oxygen, so that the user's physical energy can increase instantly, and in a short period of time, it will be enough to compete with ghosts.

Enhancing physical fitness through breathing and fighting with sword skills that go with breathing is how the Demon Slayer swordsman fights against the cannibal demons.

The original breathing method appeared about 400 years ago during the Warring States period, and was called the "Initial Breath", and from the "Initial Breathing", later generations absorbed part of the essence, and combined with their own specialness, they created five basic breathing schools.

The five basic breathing schools are [Water Breath], [Thunder Breath], [Flame Breath], [Rock Breath], and [Wind Breath].

There is basically no distinction between high and low in the five basic schools of breathing, and each has its own emphasis and characteristics, and each has its own advantages and disadvantages that other breathing methods do not have.

From these five basic breathing methods, there are also many other sub-schools, although they are derived from the basic breathing methods, but they also have their own characteristics.

Among these breathing methods, except for the transcendent status of the [Initial Breathing] of the ancestor of the breathing method, there is no breathing method that can be said to be absolutely superior to the other breathing methods.

And what my wife Shanyi learned was the fastest and most explosive of these breathing methods.

[Thunder Breath], that is one of the most difficult breathing methods to cultivate, even among the ghost killing teams with various breathing methods.

While having the fastest speed and the strongest explosive power, it is natural that the user must have a physical fitness beyond ordinary people, and in the case of strong enough physical fitness, learning [Thunder Breath] can get twice the result with half the effort.

Ryuxia's physical fitness has reached the limit of ordinary people, and in terms of physical fitness alone, he has surpassed my wife Shanyi a lot, and learning [Thunder Breath] is naturally more than enough.

"The key to learning breathing is how to effectively absorb a large amount of oxygen and then collect it into the blood, so the strength of the heart and lungs is the most important thing."

In the ancient temple, although the willow branches have risen on the moon, and my wife Shanyi has also felt a little sleepy, but in order to survive in the final selection tomorrow, he still carefully taught the practice of [Thunder Breath] to Lu Xia.

Of course, although he was teaching, he was actually just relaying what his cultivator had told him to Lu Xia as it was, and he had no experience in teaching others, so of course he would seem dry when he taught, and he didn't know how to be flexible at all.

But fortunately, Ryuxia learns very quickly.

If there is really a person like [genius] in this world, then Liuxia is definitely one of them, and the qualifications that this kind of person has, like a chasm, lie in front of people with ordinary qualifications, making countless people feel a sense of despair that they can't catch up, and they have lived in the shadow of such people all their lives.

After telling Ryuxia the key points of breathing and swordsmanship, my wife Shanyi couldn't bear the surging sleep, lay down on the floor of the ancient temple, and slowly fell asleep.

Lu Xia was alone in the open space outside the temple, repeatedly practicing the [breathing method], and the sound of low but rhythmic breathing sounded in the silent night.

And as time passed, the agitation contained in this breath became stronger and stronger, obviously it was just an ordinary breath, but it gave people the illusion that a beast was restless in front of it, and it was about to let out an earth-shattering roar.

…………

The next day, in the morning.

The two of them had breakfast early, and when the sun had just risen over the horizon and the dew on the leaves in the forest had not completely melted, they left the ancient temple and came to the vicinity of Fuji Attack Mountain.

The ancient temple was not far from Fuji Attack Mountain, and after the two of them rushed together for more than ten minutes, they came to the foot of Fuji Attack Mountain.

"I said, Ryuxia-chan, are we really going to carry such a heavy box together?"

At the foot of the mountain, my wife Shanyi looked at the nearly 100-meter-long staircase in front of her, turned her head to look at the suitcase that Ruxia was holding in her hand, and showed a bitter look on her face.

"What the hell are you in this box, and why is it so heavy? Wouldn't it be good to throw some away, or just put it at the base of the mountain? ”

Ryusha glanced at the suitcase in his hand, there was nothing special in the box, just some things such as tents, flashlights, clothes, nylon ropes, and the most important things were in the piano case behind him.

"Lift it up and let someone from the Ghost Slayer take care of it."

Although things are not important, Ryuxia has no intention of giving up.

Because in addition to the above items necessary for wild life, he also put some valuable jewelry in it, he has no money from another world, of course, he has to prepare some hard currency, not to be able to exchange money in all worlds, but at least to be able to sell in most of the world, at least be prepared.

My wife Shanyi sighed, so she had to lift the other corner of the suitcase, and together with Ryuxia, she carried the suitcase and climbed the stairs step by step.

The only way to the mountainside is the staircase in front of you, and every candidate swordsman of the Ghost Slayer Team needs to walk up from this staircase, and a hundred meters away, a red gate-like building can be seen lying there.

It is a torii gate called 'torii', also known as 'Shinmon', and is usually an annex of the shrine, meaning the place where the gods enter and exit, and the reason why it is built on both sides of the stairs is to tell people that there is a shrine here.

It took the two of them another ten minutes to complete the stairs and reach the shrine on the mountainside.

As soon as I entered the shrine, my wife Zenyi lay directly on the ground, not caring if the haori on her body would get dirty, panting and sweating all over.

Compared to him, although Ryuxia's breathing was also a little shorter, he felt that he had only run a thousand meters, which was far less unbearable than him.

In the open space of the shrine, there are already more than a dozen figures standing at this moment.

The men stood around the clearing, barely talking to each other, and from the outward appearance they were almost all young men of about fifteen, each with a heavy expression.

Behind these people, the shrine was in the front position, and there was a long case placed there, and in front of the desk stood two young men who were only about seven or eight years old.

The appearance of the two is almost identical, and it is completely impossible to distinguish between male and female, only the hair is pure black and white respectively, which can barely tell which one is which.

Although the two of them were immature in appearance, their expressions were extremely calm, as if they had long been accustomed to such a scene, and there was not the slightest jerkiness or fear at all.