Izawa Sugi's heart was filled with grief.

This is the second time, Ji Guoyansheng stabbed him in the back for the second time!

When Izawa Sugi joined the Demon Slayer Corps, although he first met Upper Rank Two, Douma, the person who almost killed him was Upper Rank One, Kokushibo, who was transformed into a demon, Iwakatsu Tsuchikuni.

Later, he became angry and worked hard to practice and improve his strength. In the end, he successfully joined forces with Tomuichiro and other partners to kill Kokushibo and avenge himself.

However, Izawa Sugi never expected that after many years, he would be backstabbed by Jiguo Yansheng again, and twice in a row!

——Dude! If you can’t talk, just don’t say anything!!

Although Izawa Sugi had become very good at communicating with others after being trained by Tomiokawa Giyu, he couldn't help but break down when he met the cold gaze of Tsuchikoku Eiichirō.

What made him even more depressed was that Ji Guoyansheng didn't do it on purpose!

Ize Shan took a deep breath and tried to use a calm tone to add with a smile: "Master Yu is right. He was too deeply poisoned before, so I had no choice but to integrate my own power into his body. So now we are in a different kind of blessing and misfortune."

After a pause, he continued to patch: "Speaking of which, most of the swordsmen of our generation of Demon Slayer Corps have opened the markings, but we found a way to prolong our lives!"

"As long as the Lord learns the secret method, he won't have to worry about the markings and physical problems!"

As expected, with Izawa Sugi's patch, Jikoku Yuichi's eyes warmed up a little, and Jikoku Iwakatsu was also stunned. He asked excitedly: "Really? Saber?"

Ize Shan nodded with a smile, but he said mercilessly: "Yes, but practicing this secret method requires some talent and ability."

——Come on, let’s hurt each other! I’ll let you stab me in the back!

As soon as he heard the words talent and giftedness, Jiguo Yansheng's face turned gloomy again.

To be honest, Jiguo Yansheng's talent is not bad, which can be seen from his practice of Moon Breathing. Sun and Moon Breathing are relative. Although Moon Breathing is not as good as Sun Breathing, it is also more difficult to learn than basic breathing such as wind, thunder, and water.

Moreover, among Tsugumi Iwaki's descendants, there will be swordsmen with extraordinary talents like Tokito Muichiro, which shows that Tsugumi Iwaki himself is also extremely talented.

——How can Jiguo Yansheng, who can chase the Son of God, be too bad?

But who made Ji Guoyansheng want to be compared with Ji Guoyuanyi?

Like now.

After listening to Izawa Sugi's explanation, Ji Guoyuan was still a little confused. He asked directly: "Can you tell me how to practice?"

With the criminal record of Muzan Kibutsuji Muzan, and the fact that his brother's life was controlled by others, it was impossible for Ji Kuniichi to let down his guard just because of a few words from Izawa Sugi. He wanted to experiment on himself first.

After hearing this, Izawa Sugi promptly told Jikokuenichi the key points of practicing the fairy technique.

Upon hearing this, Ji Guoyuan looked confused and hesitant.

According to Izawa Sugi, practitioners need to sense the power of heaven and earth and replenish their over-damaged bodies by absorbing the natural energy that permeates the heaven and earth.

But...isn't this a survival instinct like breathing?

Ji Guoyuan murmured, "Just like people need to eat, after using swordsmanship to fight, you will definitely feel tired, right? If you are tired, don't you need to breathe? If you breathe, your life is moving and absorbing, so won't it naturally recover?"

Jiguo Yansheng: "..."

After hearing this, Ize Shan thought to himself that it was indeed so.

Ji Guoyuan was born with spots, which means that he has been exchanging energy with the heaven and earth since he came to this world, and is always in a state of awakening immortal arts.

Having maintained a state of assimilation with nature for a long time, he can certainly see the true meaning of all things in the world, that is, the state of transparency.

Izawa Sugi looked at Tsuchikuni Iwakatsu.

Ha! Jiguo Yansheng was petrified! He was about to break! He was once again broken by his brother's talent and ability!

Izawa Sugi felt a rare sense of schadenfreude in his heart. Jigoku Iwakatsu was always making fun of himself and had to compare himself with his twin brother. Not only did Merlin feel a toothache, but Izawa Sugi was also a little fed up.

Since patient relief and careful persuasion have no effect, let's try strong medicine~

Izawa Sugi ignored Jikoku Iwakatsu and explained to Jikoku Yuanyi, "That's not the case. For ordinary swordsmen to open the stripes, they need to constantly squeeze their breathing and consume excessive body energy to allow their bodies to enter the stripe state. Only when the body is extremely lacking in energy and is very hungry for energy replenishment, can they absorb the energy of heaven and earth to replenish themselves through the correct practice method."

"After entering the door of immortal arts, by constantly exchanging with natural energy, there is a certain chance that you will see the essence of the world and enter the highest realm."

Izawa Sugi briefly explained the training process, and at the end he generously praised Yuichiro Kokunoki.

"As expected of you, the senior who invented the initial breathing technique, you actually stepped into the door of immortal arts from the very beginning. It really makes us feel ashamed. We are still not as good as you!"

After saying this, Izawa Sugi secretly observed Tsuchikuni Iwakatsu from the corner of his eye...

Very good, Jiguo Yansheng's body was shaking, and the thoughts in his heart had changed from "My brother has already entered the gate of immortal arts, he is so amazing" to "He is indeed the son of God, we who are chasing him are so sad", and then to "If it were me, would I be able to enter the gate of immortal arts before I die at the age of 25?", and finally to...

[Since Yuanyi is not restricted by the stripes, is he humiliating me when he says he will help me find a solution to the stripes?]

[Yuichi... why did he appear in front of me and say these things again? I, I was already planning to leave...]

Izawa Shan subconsciously reached out and covered his twitching stomach.

What made Jiguo Yansheng lose his temper even more was Jiguo Yuanyi's next words.

"No, you reminded me that ordinary people are different from me..."

Ji Guoyuanyi looked a little embarrassed. In his eyes, the world was transparent. If he had not met his wife that year, Ji Guoyuanyi would not have known that he was different from ordinary people.

But he didn't expect that the same thing would happen to the Marks. Thinking about it this way, those swordsmen who died because of activating the Marks...

There was a glimmer of gloom in Ji Guoyuan's eyes, but he cheered up again the next second.

He looked at Jiguo Yansheng, "Since I am in this state myself, and the future swordsmen have indeed entered the immortal state through secret methods, it shows that this method is correct. I believe that with my brother's ability, he will be able to solve the problem of the spots soon!"

Jiguo Yansheng: "..."

Izawa Sugi: “…”

How should I put it? The cultivation of immortal arts also requires qualifications and time. Even in the ninja world, there are very few people who can cultivate immortal arts. Ji Guoyuan is so sure that his brother can learn it, then... the twin brother is born with it, but the brother needs to learn it...

Even Ji Guoyansheng himself didn't dare to say that he could learn it!

Ize Shan couldn't help but look sideways. Does Ji Guoyuan know what he is talking about?

Ji Guoyansheng... uh, his body shook and he fainted.

“Brother?!”

Ji Guoyuan hurried forward to support his brother.

Ize Shan opened his mouth. He wanted to say that language is an art and if you are not good at it, don't say it. But in the end, he could only say: "I will go call the doctor..."

The doctor came over quickly and after the diagnosis he said that Ji Guoyansheng's mood changes were too drastic and he needed to rest and not be stimulated again.

So Ji Guoyuan came to the conclusion that his brother knew there was a solution to the problem of stripes, so he was very excited.

Izawa Sugi: “…”

Tsugumi Kuniichi was also very happy. He asked Izawa Sugi earnestly, "Can you teach this training method to other swordsmen in the Demon Slayer Corps who have opened the spotted pattern? I was inconsiderate before, which shortened the lifespan of those swordsmen. If..."

Izawa Sugi interrupted Tsuchikuni Yuichi and said, "Senior Yuichi, the immortal arts are just like your Breathing of the Sun. Not everyone can learn it. The practice process is even very dangerous. It is easy to be assimilated by nature and turn into a rock or a rotten tree. I'm sure you have experienced this, right? In front of this world, humans are too insignificant."

After hearing this, Ji Guoyuan fell silent. He said softly, "You are right. I am too optimistic. But I want to do my best to help those swordsmen who have opened the stripes. This is my responsibility."

He said seriously: "Can you explain the specific method of the immortal art in more detail? I want to try to break down the practice method, even if it is just to allow those spotted swordsmen to enter a state of enlightenment temporarily and make up for the missing life energy in their bodies..."

Izawa Sugi was touched by Tsugumi Kuniichi's sincerity and determination, so he said straightforwardly: "Then please lead them into the state of immortal arts. If they just want to simply feel and absorb a little bit of energy to replenish their bodies, there is no need for them to master immortal arts themselves."

It is a bit difficult for ordinary immortal arts practitioners to bring someone with them, but for Ji Guoyuan it should be as easy as drinking water, right?

Ji Guoyuan was delighted: "Thank you very much. If you need any help, just let me know."

Izawa Sugi thought about it and made a request that was not really a request: "When you go to Jiguo Castle in the future, can you take a look at the descendants of the Lord?"

During the Warring States Period, without the strongest fighting force, the patriarch, the inheritance of Jiguo Castle gradually declined, and even the surname was gone. If it had been guarded by Jiguoyuan, perhaps the speed of decline would have been slower?

Maybe it's useless, but even if there is a tiny possibility, Izawa Sugi hopes that Tomoichiro can live a better life in the future.

Jiguo Yuanyi's expression softened. It was not until this moment that he was finally convinced that Izawa Sugi had no ill intentions.

"…Because of your partner?"

Izawa Sugi said frankly: "Yes, Muichiro's family makes a living by cutting wood. If it can make him live a good life, why not give it a try?"

Ji Guoyuan said gently, "Let's change it."

Ize Sugi was a little surprised. He felt that his request was nothing. The descendant of Jikoku Iwakatsu was the nephew of Jikoku Yuichi. Wouldn't Jikoku Yuichi be willing to take care of his nephew?

"Why?"

"Jiguocheng belongs to my brother. I will not stay in Jiguocheng."

Ize Shan's mind raced. He pretended not to understand and asked repeatedly, "Why?"

"My brother and I are twins. If I return to Jiguocheng, I will pose a threat to my brother."

Jikokuenichi still remembered the reason why his father sent him to the temple when he was young, so he stayed as far away from Jikoku Castle as possible.

"If I hadn't known that my brother's life was in danger, I wouldn't have planned to appear in front of him again..."

As Ji Guoyuan said this, a gentle smile appeared on his face involuntarily, "I didn't expect that my brother would also come to the Demon Slayer Corps to kill evil spirits. Although sword fighting is not something I like, saving people is always good, and I can also practice with my brother..."

Ize Shan looked strange.

Tsugumi Iwakatsu joined the Demon Slayer Corps purely to improve his own strength and compete with his brother, right?

Killing demons is just a byproduct.

Izawa Sugi tentatively said, "Really? Maybe the Lord came to the Demon Slayer Corps for you."

Ji Guoyuan was stunned. He looked at Ize Shan and asked, "What do you mean?"

"It's like this. Muichiro had a twin brother named Ichiro. After Ichiro's death, Muichiro was seriously injured and suffered a severe shock. He lost his memory and forgot the existence of his brother Ichiro."

Izawa Sugi said slowly: "But even if he forgot, his body still retained hatred for the demons, and at the same time, Muichiro still felt confused as if he had lost half of his body."

Ji Guoyuan murmured, "Half of the body..."

"Yes, you and Suzu are twins, each other's halves. When you left Jikoku Castle, Suzu felt like he had lost something, right? He didn't know where you were at first, but when he learned that you were a member of the Demon Slayer Corps, he immediately decided to join the Corps."

Izawa Sugi used the art of language to embellish Tsugumi Iwakatsu's behavior, and tried to persuade Tsugumi Yuichi from another angle, "The Lord is planning to travel around the world, which is estimated to take a long time. If you can stay in Tsugumi Castle during this period..."

Ji Guoyuan asked out of the blue, "Brother, why do you suddenly want to travel around the world?"

Izawa Sugi answered subconsciously: "Of course I want to meet different people, compete with stronger swordsmen, and improve my swordsmanship."

Ji Guoyuan was a little confused: "Brother, do you still need to compete with other swordsmen?"

Izawa Sugi was silent for a moment, then he asked carefully, "Shouldn't I fight with others to increase my own experience?"

Ji Guoyuan continued to ask in confusion: "But what experience can those people provide to my brother?"

Izawa Sugi changed the angle and asked, "Speaking of which one did you usually practice swordplay with when you were in the Demon Slayer Corps?"

Ji Guoyuanyi: "Of course it's my brother."

"You've never practiced with other swordsmen?"

"I practiced sword fighting at first, but later on they stopped asking me to practice sword fighting, and I felt that practicing sword fighting with my brother was more interesting."

Izawa Shan didn't know what to say, so he could only smile awkwardly but politely: "Is that so? That means you know my swordsmanship very well, so I plan to practice alone for a while, hoping to bring you more surprises and surprises!"

Ji Guoyuan suddenly realized: "So that's how it is!"

He said happily, "Then I'll leave my brother to you during this period."

Tsugumi Kuniichi also bowed to Izawa Sugi very seriously.

Ize Shan did not avoid it. He said weakly, "Leave it to me."

No matter what, he has to help Jiguo Yansheng practice the magic. As for whether he can make Jiguo Yansheng's nerves thicker... that depends on opportunity and luck.

Izawa Sugi added: "During this period, I will trouble you with Jiguocheng. If it is convenient, please think carefully about Jiguocheng, the twin brothers and the half body."

Ji Guoyuan no longer said that staying in Ji Guocheng would bring trouble to his brother, but said that he would seriously consider it.

The night when Izawa Sugi and Tsugumi Junichi reached an agreement, Tsugumi Iwakatsu woke up.

He didn't want to stay in the Demon Slayer Corps for even a moment, nor did he want to see Yuichiro Tsuchiya's face again, so he ignored his injuries, took his sword and money, and quickly left the compound overnight.

Izawa Sugi did not tell Jikoku Iwakatsu, who was watching him from a distance on a big tree.

He was quite happy even though Ji Guoyuan didn't show up.

——Ah, my brother is working hard quietly and bringing me surprises, so I must also complete my brother's instructions, help the Demon Slayer Corps swordsmen solve the problem of the spots, and then take them to Jikoku Castle!

With the anger and rage in his heart, Ji Guoyansheng rushed all night and arrived at a small village at dawn.

Then he couldn't walk anymore.

Maybe it was because he was far away from Jiguo Yuanyi, or maybe the anger dissipated a little after one night, but Jiguo Yansheng's body could not bear it anymore.

At a tea stall outside the village, Jiguo Yansheng sat down to drink tea and rest, finally feeling in the mood to think about what to do next.

"... Saber, do you know the swordsman of this era?"

If it can be passed down to future generations, it means that this swordsman must be very powerful. You can try to challenge him.

The historical process of the Warring States Period can be roughly divided into three stages. The first stage was when the Muromachi shogunate still existed, the middle stage was a period of war between many warlords and various forces, and the last stage was the period when Oda Nobunaga conquered the world and the Tokugawa shogunate was established.

"If we talk about the most famous person in the Warring States Period, it must be Oda Nobunaga."

Ize Shan thought of the arrogant and domineering woman in Chaldea, and he said maliciously: "If you are interested, we can go and take a look."

...According to Izawa Sugi's observation of this era, Oda Nobunaga was most likely only in his teens at this time, which was the age for him to make great achievements.

"Although he is still young, he must have the aura of a whale swallowing a tiger, right?"

Izawa Sugi hinted to Tsuchikuni Iwakatsu, "Oda Nobunaga will be honored as the Demon King of the Sixth Heaven in the future."

Jiguo Yansheng became interested after hearing this. He touched the hilt of his sword and said, "The Sixth Heavenly Demon King?"

His younger brother Enichi is called the son of God who possesses divine power. What talent does Oda Nobunaga have that he is honored as the Demon King of the Sixth Heaven?

"I'll go see it for myself!"

Izawa Sugi breathed a sigh of relief. As long as he could divert Jigoku Iwakatsu's attention from his brother to someone else and stop being so sour, it would be fine.

"Okay, Oda Nobunaga lives in Owari, let's go to Owari."