People are pirates, this navy is not very fair!

Seymour Shimura, Isshin Dojo.

Beside the well in the backyard, there was a whetstone in front of Sephiroth.

He was sitting on a stool, holding a long red knife with a blade length of one meter and two meters in both hands, polishing it regularly on the whetstone.

After a while, he picked up the long knife and looked at it carefully in front of his eyes.

Kuina, who was standing next to Sephiroth and observing, first took out a handkerchief and gently wiped the sweat from his forehead. Then she said with a slightly doubtful tone and hesitant words:

"Sephiroth, why... hmm!?... It's... it's... that..."

"This knife gives people a particularly ominous feeling, doesn't it...?"

"Um!?"

Kuina nodded obediently and agreed with Sephiroth's words.

"Because!... What I forged is a demon sword!

It’s natural for you to feel this way…”

As Sephiroth spoke, he picked up the black scabbard on the ground with his left hand, and put the sharpened bloody sword in his right hand into the sheath.

It took him more than half a year to forge this blood knife, and its grade barely reached the level of a great sword...

According to Sephiroth's original idea, he originally wanted to create a weapon that had the same effect as the Yama Sword and could guide the user's domineering power, but would not forcibly absorb the domineering power.

In this way, although the upper limit of the attack power that can be exploded has been weakened, it is relatively easy to control and will not put too much burden on the user.

In terms of results, Sephiroth succeeded, but he also failed!

He achieved his goal as he wished, giving the long sword the effect of guiding the user's domineering spirit.

however……

This sword is a weapon made using the blood sacrifice method that specializes in forging demon swords, which gives it a bad will.

It will confuse the user's mind and lure them to kill!

After Sephiroth noticed the ominous nature of the knife, he immediately stopped forging it and stopped improving its quality. He omitted many subsequent processes, making it barely reach the level of a great sharp knife.

If this knife is made perfect and its quality is improved to the maximum, its evil nature will also be greatly increased!

It is true that a knife is a weapon used to kill people, but this kind of knife that leads people to fall into the path of murder is like a curse, destined to cause a lot of bloodshed.

Therefore, Sephiroth chose to leave flaws in the knife to make it more controllable.

In this regard, Kozaburo, who guided him throughout the sword forging process, felt a little regretful, but he didn't say anything.

"What's the name of this knife...?" Guina asked curiously.

Hearing this, Sephiroth couldn't help but rub his chin gently and muttered:

"Huh!? Name...?

Let me think about it...

Those who can master this knife will be able to freely control their own murderous intent and will not be affected by the knife. Those who cannot master this knife will be infected by the murderous intent and become a beast that only knows bloodthirsty killing.

Therefore, let’s name it murderous intent!

I hope its name can alert users. "

"Kuina, let's duel!"

Zoro, holding four bamboo swords in his arms, quickly ran out of the swordsmanship dojo and arrived in front of the two of them.

"Sorry, I refuse!"

Hearing this, Kuina rejected Zoro's proposal without hesitation.

"Why are you afraid?"

"No! I just think there is no way you can beat me.

You have already lost 99 times, don’t you still understand the gap between us? "

"..."

After hearing these words, Zoro couldn't help but fell silent, and his expression changed for a while.

The difference in strength between the two was not unknown to him.

but……

He is not reconciled!

He could obviously defeat even adults, but he couldn't defeat a girl like Kuina, which made him feel extremely frustrated!

Suddenly, Zoro remembered his conversation with his master Koshiro.

He once asked Koushiro how he could defeat Kuina, but the other party said that he at least needed to understand the realm of the breathing of all things to be sure of winning.

Then, Koushiro said a lot of things to him.

As an illiterate person who doesn't like to study, Sauron said that he couldn't understand what the master was saying at all...

In this regard, Koushiro said that if you can't understand it, you can only touch the realm of breathing of all things through ten years of daily practice.

Thinking of this, Sauron immediately gritted his teeth and said with determination:

"Guina, let me have a final battle!

Win or lose, I won't challenge you again within ten years!

In these ten years, I will work hard to practice and become stronger.

When the time comes, I will definitely knock you down! "

Seeing Sauron's decisive attitude, Kuina became a little interested:

"Oh!?...If that's the case, then I'll reluctantly fight you again!

I hope you can keep your promise..."

"Of course!

I do what I say..."

After Zoro handed one of the four bamboo swords in his arms to Kuina, he suddenly bit a bamboo sword in his mouth and held a bamboo sword in each hand.

"What are you doing...?

Three knives...are you juggling? "Guina said with a surprised look on her face.

Hearing this, Zoro snorted coldly and said slightly dissatisfied:

"Stop blabbering!...This is the three-sword style I specially developed to deal with you!"

In Zoro's simple mind, he felt that Kuina was able to calmly deal with his double sword style every time because his attacks were not fast enough or intensive enough!

So, what if he uses one more knife...?

Will this cause more trouble for Kuina...?

Therefore, he recently began to secretly hone his three-knife attack skills, preparing to catch Kuina off guard.

"watch out!"

Zoro shouted and rushed towards Kuina. The three bamboo swords waved afterimages in the air and hit the latter's body everywhere.

Suddenly encountering an unfamiliar routine, Guina was also caught off guard, and she began to parry and block in a hurry.

For a time, she was retreating steadily!

Looking at Kuina who was forced into the corner by him, Zoro couldn't help but said with a proud smile:

"How about it?

Do you know how powerful I am? "

"The move I've never seen before... really caught me off guard!

It's just... you're still too young! "

As she said that, Kuina unexpectedly advanced instead of retreating and rushed towards Sauron, who immediately waved his two swords to attack.

next moment.

When the two bamboo swords approached, Kuina's body showed amazing flexibility, and she narrowly missed the gap between the attacks of the two bamboo swords. She stabbed Zoro directly with her backhand sword. On the forehead, the opponent was knocked upside down and rolled two meters away.

Seeing this scene, Guina put her bamboo sword on the ground, nodded slightly and said:

"I have to admit...your three-sword style is a bit impressive.

It's just that you simply don't have a full grasp of it. "

Zoro raised his right hand and rubbed his forehead, stood up with a grin on his face, and said with a look of reluctance:

"Damn it! Just wait for me...I will definitely defeat you in the future!"

After saying that, he packed up his things and turned around to leave.

If he loses the duel, he loses. No matter how unwilling he is, he will not deny it.

Once he understands the breath of all things, he will win it back sooner or later!

"Ugh!"

Looking at Zoro's leaving figure, Kuina sighed inexplicably, and a trace of loss flashed in her eyes.

Sephiroth walked up to the girl, gently stroked her blue hair, and asked with concern:

"What's wrong?

You win and still sigh..."

"Sephiroth, if a woman wants to become a great swordsman, there are really big drawbacks!" Kuina said with emotion.

Compared to before she started, Sauron's strength was vastly different, and the opponent was constantly getting stronger, but she found that she was limited by her gender, and her speed of getting stronger began to slow down...

"I have a very good devil fruit here...

Do you want to take one? It should help you break the shackles of physical talent and greatly improve your strength, so that you can become a great swordsman more easily in the future! Sephiroth said with a smile.

Apart from the surgery fruit, the best devil fruit he has now is the shadow fruit...

If Kuina wanted it, he would give it to her without hesitation.

No matter how valuable his sister is, he won't feel bad for her!

However, considering the benefit to the swordsman, it is best to give Kuina an animal devil fruit.

After all, it can improve physical fitness and physical potential in all aspects.

If that didn't work, he would mobilize the entire Umbrella Company's manpower and material resources to find a powerful phantom beast fruit for Kuina!

He doesn't like ancient plantings at all. As for ordinary plantings...

That thing, if he wanted it, he could mass-produce it now!

Although the artificial devil fruits he created were just like the SMILE made by Caesar, they were defective products with huge side effects and defects.

but......

It is undeniable that the eater can indeed gain the wild power of the animal!

As for what Devil Fruit awakens...the defective product comes with this?

“We won’t be using this for now!

If I eat a devil fruit, I won't be able to swim, I will be afraid of the sea, and the side effects will be too great...

Let’s wait until I have fully tapped into my own potential before I consider this kind of thing! "

Kuina smiled and shook her head, rejecting his proposal.

"Well! I respect your choice.

However, speaking of physical potential...

Recently, I am researching something that, if it can be completed, should be able to tap your full potential! "

Guina tilted her head and said curiously:

"what is that?"

"A special potion based on the ES poison of the fish-men. It can directly tap the full potential of the human body. I named it Super Soldier Serum...

However, it is still in the clinical trial stage, and there are still many side effects that have not been resolved.

When it is completely perfected, I will let you use it. Sephiroth explained with a smile.

With the assistance of the research laboratory of the Umbrella Company, after many years of research, he has already completely analyzed the ES poison of the fish people, and developed a variety suitable for ordinary humans, which can be mass-produced at any time.

however……

Sephiroth is not satisfied with this!

Drugs that require intense consumption of vitality in exchange for strength have obvious drawbacks and are not suitable as a conventional means to enhance the company's overall strength.

Therefore, Sephiroth wondered whether the effects of the ES poison and the life-enhancing potion could be neutralized to offset the side effects and create a potion that permanently increased strength.

Theoretically, this idea is feasible, but it is a bit expensive in the clinical trial stage. There are countless cases of bleeding from various seven holes and death from explosions. Many technical problems cannot be solved, which makes him feel a little helpless...