The Fruit of Surgery

"You'd better move out of here." Seeing the couple's embarrassed look, Shen Fei sighed helplessly, then took out some gold and gave it to them.

If possible, no one would want to live in an uninhabited place. Although Shen Fei didn't know the specific situation, he could still guess something.

After the man with the strange mask left, Shen Fei and Tanjiro and his sister Nezuko briefly talked to the owner of the room, the couple who were saved by Shen Fei, and then left with Tanjiro and his sister Nezuko.

"Although I don't know why Nezuko turned into a ghost, she won't eat people."

"I will definitely find a way to cure Nezuko."

On the way, Tanjiro roughly told what happened to his family. Speaking of it, there is no big difference between their experience and the previous family. They lived in a remote place in the mountains and made a living by burning and selling charcoal. Later, they were attacked by ghosts. Except for himself who was not there, the family was left with only a sister who seemed to have turned into a ghost.

Later, Tanjiro said that he went to Mount Sakigiri because a swordsman he met told him that he could learn the skills of killing ghosts there, and it was also possible to cure his sister's problem.

"What a familiar plot." What Tanjiro said made Shen Fei feel unusually familiar, but for a moment, Shen Fei couldn't remember where he had seen it.

"Forget it, it's probably the same as forgetting Wanda's name before, maybe I'll suddenly remember it later." From Tanjiro's mouth, Shen Fei roughly knew what era it was now, but unfortunately it was an era that Shen Fei didn't know at all, so he didn't know the specific situation.

"Ghosts, some are like biochemical virus infections, and some are like vampires." Although Tanjiro didn't know much, from his words, Shen Fei still guessed the way ghosts were infected. It seemed that like vampires, there were specific means of developing offspring, not like zombies, which could infect other people at will.

In addition to the immortal body and death in the light, it really looked like the vampires in some legends. The only difference was that they couldn't turn into bats.

"You can change your size at will. What an interesting ability." Nezuko will return to her original size at night and move with her brother Tanjiro. Once the sun appears, she will become smaller. The strange thing is that once she becomes smaller, her weight will also change to a certain extent.

Sagiri Mountain, Urokodaki Sakonji, is the person that the young man named Tomioka Giyuu told Tanjiro to find. The journey is not far for Shen Fei, but for Tanjiro and Nezuko, it is a long distance. However, even so, Tanjiro still persisted.

Shen Fei, who followed Tanjiro, did not have the idea of ​​moving forward quickly with him. Although the speed was a little slower, it was nothing for Shen Fei. He just took this opportunity to communicate with the dimensional space of this world.

Originally, this was what he had to do every time he arrived in a new world. If he wanted to wander around, this was standard.

"You are here." At the foot of Sagiri Mountain, in front of a small wooden house, the person who took away the strange mask before opened the wooden door and walked out after the three arrived.

"Sure enough, he is that Urokodaki Sakonji." Seeing the person coming out of the room, Shen Fei immediately confirmed his previous guess.

"Giyuu wrote to me. I want to ask you a question. What if your sister eats people in the future?" After the group entered the room and sat down, Urokodaki Sakonji suddenly spoke to Tanjiro.

"Uh." Tanjiro obviously didn't expect to encounter this question, and he hesitated immediately. Then Urokodaki Sakonji immediately slapped Tanjiro on the left cheek, and then said in a deep voice, "If she kills someone, you must kill her and then commit suicide, so you must remember that you must not let this happen."

"I will never let Nezuko kill people." Tanjiro said in an extremely firm tone.

"Um, can I ask a question, what is a demon, and what is the Demon Slayer Corps?" Shen Fei suddenly asked when the two were silent.

"Originally, I shouldn't tell you this question now, but since you want to know, I'll just tell you." After a moment of silence, Urokodaki Sakonji told the origin of the demon.

"I was wondering why it was so familiar, it turned out to be Muzan, the Muzan who used the Nichirin sword to scrape and tea with wisteria flowers." As Urokodaki Sakonji spoke, Shen Fei immediately remembered what kind of world this was.

Demon Slayer: Kimetsu no Yaiba, perhaps it should be called Pillar Slayer: Kimetsu no Yaiba, the final result seems to be that the protagonist team left and the others were all killed.

Although this seemed to be very popular at the time, Shen Fei had never seen it. The reason why he knew this was because of chatting, chatting in groups and watching some videos.

The reason why Shen Fei was so impressed was mainly because it was said that this Muzan was called the most cowardly boss in history, and he killed more subordinates than the protagonist team.

There were so many anime in the previous life, how could it be possible to watch them all? Shen Fei was originally going to watch this later, but who knew that he would travel through time.

"So it's him, Touzhu." After remembering what world this was, Shen Fei immediately found out who Tanjiro was. Compared to his name, a nickname was easier to remember.

"The Demon Slayer Corps is a group of swordsmen who specialize in hunting demons." After introducing the situation of demons, Urokodaki Sakonji also briefly talked about the situation of the Demon Slayer Corps.

"Do you want to become a demon-killing swordsman?" After saying this, Urokodaki Sakonji looked at Shen Fei.

Because of the appearance of Shen Fei, Tanjiro's original experience was completely changed. Although Urokodaki Sakonji did not say that he would give up Tanjiro, his goal was obviously more on Shen Fei.

After all, if Shen Fei had been systematically trained with the physical strength and movements he had shown before, he could definitely become the backbone of the Demon Slayer Corps. This is why Urokodaki Sakonji told the situation of demons and the Demon Slayer Corps in advance.

People who don't understand the situation may think that the Demon Slayer Corps and demons are evenly matched, but they don't know that the strength of the Demon Slayer Corps and demons is worlds apart. To put it bluntly, if Muzan was not so cowardly, he could wipe out the current Demon Slayer Corps alone.

He didn't even need to take action, he could just order his upper and lower demons to attack together, but this guy was afraid that his subordinates would gather together and might rebel against him, so he never dared to let a large number of demons gather together.

"This world seems to have breathing techniques." After thinking silently for a while, Shen Fei nodded and agreed out of curiosity about breathing techniques and the same with demons.

"You should have a good rest today and start training tomorrow."

The next day, Urokodaki Sakonji woke the two up early, took them to the mountain, and then let them run down the mountain.

This situation was naturally child's play for Shen Fei, but in order to avoid being too shocking, Shen Fei had to work very hard to restrain his strength and make himself look several times stronger than Tanjiro.

On the one hand, this was to let Urokodaki Sakonji discover the problem, and on the other hand, it was also to prepare for the opponent Muzan in the future. With Muzan's cowardly look, once he heard that a very powerful swordsman appeared in the Demon Slayer Corps, he might think of the man who made all the cells in his body begin to fear.

Once such a thing happens, with Muzan's cowardly look, he may really hide for hundreds of years without showing up. This world is very big, not to mention this world, even this country is not small. Shen Fei does not have so much time to find a hiding Muzan in the vast sea of ​​people.

However, even if Shen Fei tried his best to restrain his strength, the so-called up and down mountain training ended after three days. On this day, Shen Fei began to get in touch with swordsmanship and breathing.

The school that Urokodaki Sakonji used was water breathing. Although it was not as powerful as fire breathing, lightning breathing, wind breathing, etc., it was better in balance, both offense and defense.

Simply put, water breathing is the most energy-consuming.

Although Shen Fei's performance was very exaggerated, Urokodaki Sakonji was not too shocked by this. Who let one of the nine pillars of the Demon Slayer Corps become a pillar after holding a sword for two months?

That was truly from nothing to something, reaching the level of a pillar in two months.

"I really underestimated the breathing method of this world." Holding the katana in his hand, Shen Fei couldn't help but feel a little emotional. After knowing that this was the world of Demon Slayer, Shen Fei didn't expect this world to bring him any improvement.

But after getting in touch with the breathing method, Shen Fei found that he made a mistake. Even with his current strength, the breathing method is very helpful.

The effect of the breathing method is that you can use the maximum power of your body in an instant. It is because of this that the swordsman of the Demon Slayer Corps can cut off the hard neck of the demon.

Most of the people in the Demon Slayer Corps are ordinary people. Ordinary people want to defeat demons by breathing.

That is, demons can't use breathing methods, otherwise, the Demon Slayer Corps would probably have been destroyed long ago. Of course, breathing methods are not so easy to learn, especially when they are cultivated to a higher level.

This all depends on talent. So far, no one has surpassed the swordsman who created the breathing method at that time. Today's breathing methods are all changed according to the breathing of the sun.

Everyone has different personalities, hobbies, and behaviors, so even if it is the same breathing method, different people will learn it differently, and then it will be passed down from generation to generation, and it has evolved into many breathing methods now.

"If the breathing method is brought to the pirate world, I am afraid it can create a group of core masters." The pirate world, which is originally based on physical skills, will definitely make some people's strength go further with the addition of breathing methods.

Of course, the breathing method is not without problems. While it can bring powerful strength, its side effects are not small. That is, if you often use the breathing method to fight, it will affect your lifespan.

If the stripes are turned on, so far, except for the founder, no one else can live beyond the age of 25. This is the price of being strong.

"Very strange cells, is this a ghost? It is said that it can survive just by sleeping without food. It seems that it is impossible not to catch Muzan."

During this period of time, Shen Fei certainly did not practice water breathing all the time. During this period, he also found an opportunity to analyze the bloodstains of Nezuko who fell asleep for some reason.

The demon that is transformed by Muzan's blood will become stronger after eating humans. As it becomes stronger, it will possess its own power, blood demon arts. Different demons have very different blood demon arts. The one that Shen Fei remembers most is the blood demon art of the space type.

Shen Fei was very curious about the magical effect of just a drop of Muzan's blood. Of course, Shen Fei also knew that such a thing could not be replicated. What kind of blood demon art a demon possessed, even Muzan could not control it.

"Water Breathing Style, Cut." As Shen Fei whispered, a stone with a diameter of about five meters in front of him was cut into two parts by his sword.

This scene made Urokodaki Sakonji on the side look very satisfied. Although he was wearing a Tengu mask and his expression could not be seen, it could still be seen from his movements.

Although it was water breathing, there was actually no water when it was used. Similarly, there would be no flames when the fire breathing was used. It was just a special effect.

"Speaking of which, Muzan's appearance seems to be related to the protagonist. It's not that the protagonist wants to meet Muzan. The probability is too low. With the current situation of the head pillar, it will probably take at least one or two years to become a master."

When Shen Fei was practicing water breathing, Tanjiro was still running in the mountains. Of course, Urokodaki Sakonji also gave water breathing to Tanjiro and asked him to pay attention to the breathing method when running in the mountains.

Although Tanjiro is very talented, his progress speed cannot be compared with Shen Fei due to his physical condition.

The problem of physical strength made Shen Fei ignore the problem of markings.

"You passed, but because the annual test of the Demon Slayer Corps has ended, you can only wait until next year to take the test and officially join the Demon Slayer Corps. I will write a letter, and you go to find Giyuu first."

"I understand."

The relationship between Shen Fei and Urokodaki Sakonji is different from that of Tanjiro. They are master and apprentice, but Shen Fei is not. Shen Fei made it clear to Urokodaki Sakonji at the beginning.

Urokodaki Sakonji didn't care about this. He only cared about the emergence of a powerful swordsman of the Demon Slayer Corps who could destroy evil spirits.

There are so many members of the Demon Slayer Corps, not every one of them is taught by the previous generation of pillars like Urokodaki Sakonji. Most of them are handed over the breathing method by the upper level, let them practice on their own, and finally participate in the selection of the Demon Slayer Corps.

If everyone was treated like Tanjiro, the Demon Slayer Corps wouldn't have so many cannon fodders. Those ordinary members of the Demon Slayer Corps seemed to come from the Demon Slayer Academy.

Of course, there is no Demon Slayer Academy in reality. This is just Shen Fei's metaphor. Shen Fei's identity is almost the same.

As long as you are not a ghost, the issue of identity is actually nothing in the Demon Slayer Corps. So far, there has been no collusion between humans and ghosts.

However, whether you practice breathing techniques yourself or someone teaches you, if you want to become a formal member of the Demon Slayer Corps, you need to participate in the selection.

Of course, if you are afraid of the selection, there is no problem. You can transfer to the logistics department of the Demon Slayer Corps to provide after-care services for formal members.

After all, the strength of ghosts is much stronger than that of ordinary people. Not everyone can ignore this gap and fight with ghosts.

"Finally, I can see the power of ghosts. Since ghosts can gain strength and longer life by eating people, what will their souls be like?"

Shen Fei quickly packed up his things and got an ordinary sun wheel sword. If you want to kill ghosts, the sun wheel sword is a must. You can't get a special sun wheel sword without testing, so you can only use an ordinary one.

Because of the differences in breathing methods, the weapons used to unleash the power of breathing methods are also very different, which is why there is a special Sun Blade.