From Demon Slayer: Thunder Swordsman

Before this, Kujo Tachibana only had the realm of a swordsman, but he did not master the power that a swordsman should have - that is, the second stage of armament domineering.

Only when the armament Haki reaches this stage will the swordsman be able to unleash his signature flying slash!

And what is the realm of a swordsman?

He could perfectly transmit the power he controlled through the sword in his hand without wasting any of it! As well as the ability to perceive weaknesses, some people would call it the breath of all things.

In addition to the armament Haki, all of the other abilities of the swordsman were developed by Kujo Tachibana in the Demon Slayer world. This is why he was considered a swordsman as soon as he came to this world.

(The settings here are my own inferences after consulting a lot of information. One Piece is a long comic that has been updated for many years. It has many contradictions, especially many settings in the early stage. I tried my best to make it reasonable.)

-

Coming from two different worlds, with different power systems, the combination of breathing techniques and domineering power, for the first time in this world, has blossomed into a spark that belongs only to it!

"Thunder Breathing - Form 10 - Thunder from the sky descends upon the earth, nothing can stop me from being slain!"

(Haha, so embarrassing... a bit childish. Do you have a suitable name? I can change it.)

For the first time, the roar of thunder and lightning resounded in the sea ten thousand meters deep.

A dazzling flash of lightning turned into a giant moon blade hundreds of meters long. Accompanied by the roar of thunder and lightning, it penetrated the body of the lantern fish sea king in just an instant.

The lightning flashed for a moment in this dark world, and then disappeared in the blink of an eye, like an illusion.

The next second, the lantern fish opened its mouth and split open in an instant, and scarlet blood poured out like a reservoir opening...

Jiujiaoju looked at the body of the "big fish" in front of him.

I still remember the taste of that little sea beast more than a year ago. When I thought of that taste, my tears couldn't stop falling from the corners of my mouth.

Jiujo Ju stepped forward and cut off a piece with a knife. The piece of meat was dozens of square meters in area and weighed dozens of tons.

The body of this sea king was too big, and he couldn't take it all away, so this was the only way.

As for the others, they will be wasted, and the blood will soon attract other giant carnivores.

After feeling heartbroken for a while, Jiu Tiaoju turned around, carrying the big piece of meat, and swinging his legs like propellers, swimming towards the shallow sea area above at a high speed.

It has finished pretending. If it doesn't leave, will its grandparents or even great-grandparents come to avenge it?

You must know that sea kings are the real rulers of this world!

On the blue planet where Kujo Tachibana lived in his previous life, the ratio of ocean to land was 7 to 3.

In the world of One Piece, this real ocean planet, how much of its land space is occupied?

At the bottom of the deep sea unknown to humans, there live countless giant and even super-giant sea kings!

If this power is controlled by a certain person, he can indeed easily overturn the entire existing world of mankind...

-

Swordsman trainee Barry opened his mouth wide and looked at his nine big brothers in shock, dragging a large piece of meat from a distance and swimming quickly towards the shore.

After a while, Jiu Tiao Ju, who came ashore with the meat and red shrimp, exhaled gently, slowly opened the pores all over his body, and slowly replenished the oxygen reserves that had just been depleted.

"Boss!! Is this a sea king? It's so big?"

Swordsman trainee Barry is about the same age as Kujo Tachibana, but after more than a year of development thanks to his breathing technique, Kujo Tachibana is now taller than his peers, completely widening the gap in height.

At this time, Jiujo Tachibana is already about 1.8 meters tall, and it is not long before he reaches the height of more than 3 meters...

Looking at the carrot head that only reached his chest, Jiujo Tachibana muttered:

"Barry, you need to eat some meat!"

"You're so short, don't say you're my little brother when you go out."

Hearing this, Barry looked at Jiujoju with a resentful look on his face, without saying a word.

Jiujo Tachibana shuddered immediately and said hurriedly:

"Okay, okay, stop looking at me like that. I'll leave this piece of meat here, and let the villagers divide the rest."

After saying this, Jiujo Tachibana took the long knife and cut off another third of the meat.

After the meat was cut, Jiujo Ju held the piece of meat in one hand and dragged the fishing net, which was already full of fish, behind him with the other hand, and walked towards the Isshin Dojo.

-

Thank you, and thank you for the gifts, thank you.

Chapter 12 Idealism, dedicated to swordsmanship!

In the blink of an eye, six months passed.

Master Koshiro's daughter, Kuina, was also born safely a month ago.

When his granddaughter was about to be born, Kozaburo, the god-level NPC who had been hiding in Shimotsuki Village, finally appeared in front of Kujo Tachibana for the first time after more than two years.

After all, it was the first time they met (the key is hard to explain). Kujo Tachibana did not take the initiative to mention the matter of sword forging. He just temporarily tried to gain favorability and served this master attentively.

Knowing that his master Kozaburo loved fishing, Kujo Tachibana catered to his interests and introduced himself to this world, sharing his countless years of fishing experience and techniques (actually air force experience), and finally his hard work paid off.

After opening the subsequent hidden mission, Kozaburo made a casual promise:

"Little Orange is great. You can come and fish with me when you have nothing to do in the future."

-

Looking at the little baby crying in Master Koshiro's arms, Kujo Tachibana shook his head helplessly, walked forward and stretched out his hand to take the baby.

In just a few seconds, little Guina's crying mouth suddenly closed. After a while, little Guina fell asleep with a look of enjoyment on her face.

The Koshiro couple were stunned by what they saw!

There was no way around it. It was the first time for both of them to have and raise a baby, and there was no one to teach them, so they knew basically nothing.

He is not as experienced as Kujo Tachibana. In his previous life, he helped Yaoya take care of his five children for a period of time, and he also had a magical experience where he took care of his own children for more than ten years.

Once in the Demon Slayer world, after the fatal battle with Kokushibo, the protagonist was in a coma and continued to write the life of Lanxing in his dream.

...

Looking at the little Kuina in his arms, Kujo Tachibana thought of Zoro, the green-haired three-sword swordsman, the owner of the ability of the Naming Fruit. The future great swordsman Zoro will be born soon, right?

-

Haiyuan calendar year 1503 (three years later)

Luffy was also born this year.

In the East China Sea, near Shuangyue Village, on an unknown deserted island.

Shimotsuki Koshiro and Kujo Tachibana, who was now fifteen years old and two meters and three meters tall, stood opposite each other.

Koshiro raised his head and looked at Kujo Tachibana helplessly.

He didn't know how his disciple grew up, but in the past few years, it was as if he had been injected with hormones, and his height and strength increased simultaneously, so much so that now he has to look up when talking to this disciple.

As the master, Koshiro was satisfied with every aspect of Kujo Tachibana, but there was just one thing that he still found a little hard to accept.

That is Tachibana, who seems unable to pass on the Isshin Kendo style because Koshiro discovered that Tachibana does not really agree with Isshin Kendo.

This recognition refers to the philosophy of the Isshin Kendo School and nothing else.

In order to straighten the crooked tree, Koshiro made up his mind this time and brought Kujo Tachibana to this uninhabited island.

Koshiro's purpose is to let Kujo Tachibana see the true strength of Isshin Kendo-ryu!

...

Kujo Tachibana was also helpless. He didn't know what was going on with Master Koshiro, but he had been looking for him to compete with him more and more frequently in the past two years.

The noise is getting louder and louder. Now that Shimotsuki Village is so big, is it no longer enough for Master Koshiro?

For Kujo Tachibana, it would actually be better to use this time to hone his domineering nature.

If he wanted to spar with his master Koshiro, he didn't have to do anything. As long as Master Koshiro appeared in front of him, he could simulate countless battles in his mind...

However, Master Koshiro was not aware of this, and the battle process predicted by Infinite would not exceed two minutes, which was also the limit of Infinite's predictable time.

Kujo Tachibana slowly pulled out from his waist a sword that was the one he had worn in the Demon Slayer world in his previous life, but it was just a lengthened and enlarged version. There was nothing he could do about it as his current size was much larger than “before”, and he would grow even taller in the future.

This was made for him by Master Kozaburo according to the drawings he gave a year ago. Although the grade of the knife is not high and it is just a sharp knife, it is very sturdy and extremely heavy!

When Master Kozaburo handed him this unnamed sharp sword, he said something.

"The truly powerful swords are forged by the swordsman himself."

"Little Orange, I believe you can do it too. Go ahead! Use your domineering spirit and will to sharpen this sword into the world's best black sword! By then, you will be the world's greatest swordsman in the future!"

(Hawkeye is not yet recognized as the world's greatest swordsman.)

Jiujo Tachibana was very satisfied with this knife and named it "Thunder Dragon". Jiujo Tachibana never doubted whether Thunder Dragon could grow into a real black knife!

All swords have the potential to evolve into black swords. A swordsman can use his own armed color domineering to attach it to the blade, which will make the long sword in his hand temporarily appear a pitch-black color. This is a black sword in the conventional sense.

The real black sword mentioned by Kozaburo refers to the long sword that has been rendered permanently black by the armed color domineering for a long time.

-

The Great Sword Twenty-one Techniques, Wado Ichimonji VS the Fast Sword Thunder Dragon, officially begins!

However, at this time, Koshiro no longer had any intention of letting his disciple go. His mission today was to wake him up!

As soon as the battle started, Koshiro used his ultimate move, fully unleashing the momentum of a great swordsman and the secrets of Isshin Kendo-ryu.

Looking at Master Koshiro standing motionless in front of him, the familiar scene from five years ago once again appeared in front of Kujo Tachibana's eyes.

In Kujo Tachibana's perception, Master Koshiro was completely integrated into this world. Even in infinity, Kujo Tachibana could not find any flaws.

But the difference is!

Now, even if facing this "world", Jiujiao Ju will not waver again!

Because Kujo Tachibana has found his own sword path.

...

Koshiro was not in a hurry to attack Kujo Tachibana, but instead began to explain the philosophy of Isshin Kendo-ryu.

"What is Yixin Sword Dao?"

"The power of human beings is limited, but the power of the human heart is unlimited. Your power is as great as your heart!"

"How can the infinite power of human hearts be defeated when they are used to fight against the limited power of human beings themselves?"

...

Listening to Master Koshiro's words, Kujo Tachibana frowned deeply.

He does not deny that human idealism has its own power, but this is not his own swordsmanship.

To give an example, it’s like an ordinary person with low self-esteem saying it a hundred times in front of the mirror every day!

"You're the best!"

Keep repeating self-hypnosis until one day, this person truly believes that he is the best. From that moment on, he will become very confident, even if he may not be the best in the eyes of others.

But this idealistic force has already brought about tremendous changes in him.

This kind of change is even more astonishing when placed in the world of pirates, an environment with supernatural powers.

What is the essence of domineering?

Will, physique, spirit, momentum, murderous intent, fighting spirit...manipulating these invisible senses and condensing them can turn them into weapons. This powerful force is called domineering!

From the moment the swordsman succeeds in "hypnotizing" himself, how can he not become stronger?

...

However, for Kujo Tachibana, who has received modern compulsory education and has long seen the mysteries of the human body, the power of human beings themselves is also infinite.

He just needs to discover it.

Compared to the idealistic theory of Isshin Kendo, Kujo Tachibana still pays more attention to himself. To put it simply, Kujo Tachibana believes that human power is also unlimited!

But what Kujo Tachibana overlooked was that his persistent and firm belief in himself and his own strength was also a kind of idealism.

-

Let me tell you an interesting thing. Kozuki Oden and Zoro use the same Enma, but Oden is 3.82 meters tall, while Zoro is only 1.81 meters tall.

So Haki can make the knife deform? ?

Chapter 13 Forced to Leave Frost Moon Village