Inside the Isshin Dojo, two swordsmen held wooden swords, initiating a war belonging to the sword.
Unohana Retsu flashed with a Shunpo. The sword-light and hurricane generated by her first strike arrived in an instant, as if the enemy wrapped within it would surely be cut and torn into countless tiny pieces.
Yachiru Style: Blood Wheel!
The sword intent pierced his mind. Seeing that he could not evade it, Koushirou could only endure that sharp pain, like needles churning in his brain.
He violently shifted his shoulder, and while rotating the wooden sword in his hand, a sword-light was produced that neutralized Unohana Retsu's offensive.
After the intersection of their sword-lights produced a loud boom, the airflow from the sword edges dispersed completely. Unohana Retsu flipped in mid-air, and during her graceful descent, the wooden sword in her hand accelerated to dive down once more.
The seemingly simple battle in that flash of a second actually involved Unohana Retsu deploying multiple swordsmanship styles; some of these schools were ones Koushirou had encountered, while others were completely unheard of.
As for Unohana Retsu, she was also in a pleasant mood. Koushirou mastered quite a few schools as well. Some of the specialized styles, such as forming a Three-Sword Style with three distinct sword intents and the Multi-Sword Style, were things she encountered for the first time.
Although the principle was not difficult, Koushirou's resilience and will also infected Unohana Retsu.
Koushirou was as steady as a mountain, maintaining a defensive posture. While continuously neutralizing Unohana Retsu's attacks, he saw the latter's hair suddenly scatter, as if she had transformed into a living demon of the human world.
Unohana Retsu in this state had truly entered her core path. Her figure was like an unconstrained wild wind, actually changing directions in mid-air.
Borrowing the momentum of her descent, she stimulated a teal radiance, slicing through the sky with a single strike, giving off an illusion of being impossible to oppose.
It was entirely obvious that during this confrontation, Koushirou became increasingly hard-pressed.
It was very difficult to defeat Unohana Retsu once she entered this state, but Koushirou was no weakling either. He violently straightened his spine and took the opportunity to raise both hands high into the sky, a powerful sword intent radiance condensing upon his wooden sword.
Suddenly, extreme darkness surfaced around Koushirou's body, yet the darkness was dotted with bright, scorching stars, as if a miniature universe had descended. This was a high-level application of sword intent, meant to confuse the opponent's vision for just a single moment.
Although Shiraishi was a spectator, he also discovered the ingenuity of Koushirou's move, inwardly praising him. To be able to use such swordsmanship, he truly deserved to be Zoro's master!
At this moment, Unohana Retsu seemed to be enveloped by darkness, but she rushed out of the dark without looking back, her wooden sword aiming straight for Koushirou without any hesitation, relying purely on instinct to fight.
Letting out a strange cry, Unohana Retsu, with her hair loose, swung her wooden sword overbearing. At that exact fraction of a second, the entire floor of the dojo was cut open by an invisible sword as if it were seawater, cracking open a gap over a dozen centimeters wide that extended all the way out!
This single strike...
The sword-light grew narrower and narrower. At the corresponding position in mid-air, the airflow was split entirely apart. The roof above was similarly sliced clean in two, directly alarming the other people in the dojo, including Koushirou's wife.
Seeing Koushirou fighting someone, his wife revealed a worried gaze, but she saw Koushirou give her a reassuring, gentle smile.
As Koushirou rapidly shifted his steps, the wooden sword in his hand swept out, scraping up a teal hurricane. Moving from the bottom up, it soared into the sky to lunge at Unohana Retsu.
The latter overbearingly slammed her wooden sword down once more, her invisible sword forcefully shattering his offensive.
At this time, Koushirou's wooden sword scooped and twisted, stirring up a storm that blew away much of the sword qi released by Unohana Retsu, causing it to land on the surroundings.
A brief few minutes of clashing showcased the profound swordsmanship cultivation of both sides. However, Shiraishi was now a little worried that Unohana Retsu seemed to be fighting more and more crazily; if she truly lost her mind in battle and accidentally killed Koushirou, it would become a massive problem.
At this thought, a cold current released from Shiraishi's body, and just as he attempted to enter the dojo to provide support, Unohana Retsu slowly withdrew from her frenzied state. By this time, her wooden sword could no longer endure her power and burst apart with a loud pop.
Simultaneously, Koushirou on the side was also drenched in sweat. Although his wooden sword had not broken, he knew very well that if this were a genuine battle to the death, his chances of winning were not great.
"Let's stop here..."
Shiraishi, who stepped into the combat circle, seemed entirely unaffected by the sword intent of the two.
The cold current continuously diffusing from his body repaired the pillars of the dojo that were on the verge of splintering; the sword-lights released by the two just now had nearly dismantled the entire dojo.
After the cold air released by Shiraishi temporarily stabilized the pillars, he spoke very politely: "I'm sorry for causing you trouble. This time, we are merely passing through Frostmoon Village to pay a visit."
Is it the ability of a Devil Fruit?
However, this person should also be a swordsman. Although he does not possess a battle intent as powerful as Lady Yachiru, he is also a powerhouse.
Very quickly, Koushirou placed his gaze onto the rest of Unohana Retsu's group. It had to be said that even Kikyo and Ace, who had become transparent background figures this time, gave Koushirou a distinct impression.
After the two sides completed their simple exchange, under Koushirou's invitation, the group stepped into the courtyard of the dojo's back residence.
Having returned to her normal state, Unohana Retsu showed no signs of joy or sorrow. Shiraishi always felt she seemed to have something on her mind, as her level of participation in certain topics was not high.
"I am fine; I am just remembering some past events."
Sensing Shiraishi's gaze, Unohana Retsu shook her head and revealed a smile: "You came to Frostmoon Village specifically, so you should have other important matters, right?"
"Yes, I want to ask Mr. Koushirou if there are any techniques to enhance one's personal physical constitution?"
Shiraishi's body reflexes and other aspects were all decent, but in terms of foundational physical constitution, there was still a gap compared to native humans of the One Piece world like Ace. In essence, he still possessed the high-attack, fragile-body constitution of the Naruto world.
As for how to resolve this problem, Shiraishi pondered for a moment and decided to seek out the master of the Isshin Dojo, Koushirou, to settle it. After all, to be able to guide Zoro to such an extent, Koushirou naturally possessed unique methods.
"Physical constitution?"
After conducting a few simple tests on Shiraishi, Koushirou also revealed a trace of surprise.
This Mr. Shiraishi indeed possessed very powerful combat capabilities, the power generated by a single strike being exceptionally terrifying, but he had a very severe defect: the overall strength of his physical body was too poor.
"It is almost as if it has been soaked in a toxic substance for many years... making your body's cell density exceptionally fragile."
After thinking it over, Koushirou shook his head: "I have no way to resolve this problem for you, because this falls within the domain of a doctor."
"Actually, there is another person on our ship whose situation is similar to mine."
Uchiha Madara's situation was identical to his own, and Shiraishi knew it very well. Although his current strength was decent, if he wanted to venture further into the One Piece world, he had to resolve the aftereffects of the chakra constitution.
Otherwise, his fragile frame fundamentally wouldn't be able to withstand a single direct hit from the top powerhouses of this world!
"In a few days, a good friend of mine is coming to Frostmoon Village to check on my wife's body. Her medical skills are highly superb, so she should be able to resolve this trouble for you."
Presently, Koushirou's wife was already pregnant, and that doctor was coming over to assist with the prenatal checkup. Koushirou held absolute confidence in her abilities, so he decided to recommend her to Shiraishi's group.
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