Chen Xin took the old man and Jiang Nan to stay in the Gio team temporarily, and the final result of the discussion was not very ideal.

Shotaro Kamiki is not really perfunctory, he will send someone to search, but only if their safety is guaranteed.

And what they have to pay as a ghost killing team is to let the old man teach them the breathing method.

Although, the old man felt that in their entire team, it was estimated that no one could learn the breathing method.

The day soon dawned, Chen Xin went directly to sleep, and the old man told him that when his great-grandson came, he would teach him a breathing method from the enemy.

After the old man's improvement of that breathing method, it should not be underestimated.

At present, the breathing methods of the old people's association include the breath of fire, the breath of water, the breath of the sun, the breath of ice, the breath of wind, the breath of rock, the breath of thunder, and the breath of the moon.

In addition to the Five Breathing Methods and the Breath of the Sun, he extended the breath of water that he was most familiar with to create the Breath of Ice.

The Breath of the Moon is different, the Breath of the Moon is the old man's perception from a broken knife, which later proved to be a weapon of a very powerful enemy, and even the Breath of the Moon is also the breathing method used by that enemy.

It is said that the broken knife was the first weapon that belonged to that enemy.

Everyone in the Gio team, who was supposed to play in pairs, knelt down and listened carefully to the old man's explanation of the theory of breathing.

This time, even the captain and deputy captains came, as well as people from the scientific research department, and they all wanted to know more about the breathing method.

Tanjiro Kamado was explaining all the breathing methods he knew, and when it came to the breath of the moon, the earth raised his hand.

"Please."

"The breath of the moon, if it comes from a ghost, does it mean that the body structure of the ghost is the same as that of a human? So why don't they all learn breathing? With the physical fitness of ghosts, it would be easy to learn the breathing method, right? ”

The old man nodded in satisfaction.

"That's a good question, this involves another question, that is, the ability of ghosts, blood ghost magic, if the ghost learns the breathing method, the price is blood ghost magic."

The physical fitness of the ghost is strong enough, if the breathing method is not practiced properly, it is equivalent to discarding one's blood ghost technique, and the breathing method is too poor, and it can't even stimulate the potential of the ghost.

"And what is blood magic?" Earth asked again.

"I don't know, it's like the instinct of ghosts, as long as their strength reaches a certain level, they can naturally use blood ghost magic."

The old man shook his head and sighed, blood ghost magic was something he couldn't understand.

"After becoming a ghost, under the condition of ensuring normal consciousness, can I enter the ghost killing team, learn the breathing method, and kill the ghost with the identity of a ghost?" Shotaro Kamiki said suddenly.

The old man frowned.

"You must know that after becoming a ghost, it will be difficult for you to be you, your thinking will change a lot, and over time, it will become murderous and brutal."

"But if you suppress those thoughts, can you use the identity of a ghost to learn the breathing method, and then go to kill the ghost." Shenmu asked very seriously.

In the heart of the earth, there was suddenly a very bad feeling.

"After becoming a ghost, your energy source is only the way to eat people, if you don't eat people, you can't maintain your physical strength to kill ghosts, so what's the point of you becoming a ghost to kill ghosts?"

"Your sister has become a ghost, and she hasn't killed a single person when she was a ghost." Shotaro Kamiki is very serious.

Sayuri Tachibana on the side tugged his cuffs, but Shotaro Kamiki didn't look at her.

"But she's also never fully conscious, and that's the end of the problem, that's enough."

He doesn't want Shenmu to become a ghost, he doesn't want anyone to become a ghost, and he doesn't want anyone to live an unhappy life.

"Thank you for your answer." Shotaro Kamiki bowed.

The old man nodded, after talking about the breath of the moon, it was time to talk about the last breathing method, that is, the original breathing method, the breath of the sun.

Shotaro Kamiki turned to leave, and Sayuri Tachibana followed.

"What do you mean?"

"Nothing."

"You don't want to be a ghost, do you?"

"Nope."

"Stop!"

"Vice Captain Tachibana, please specify a plan to find the Ghost King."

"Shenmu!"

"Enough! Please obey orders! ”

Sayuri Tachibana stared at Shotaro Kamiki, her chest rising and falling, and then turned to leave.

After Sayuri Tachibana left, Shotaro Kamiki put his hands behind his back, his hands were shaking, and several red spots could be seen on his wrists.

……

In the morning, after listening to the theory of breathing, the whole team picked up the wooden knife and began training.

Chen Xin and Jiang Nan fought against Tanjiro Kamado, who did not use the breathing method, and at the same time, the two of them could only use the breathing method.

According to the old man, the best way to feel the flow of blood is to keep your body moving, constantly avoiding attacks, and exercising your lungs to improve lung capacity and capacity.

The first battle of training is to do everything in your power to knock everyone down.

So, the whole field began to scuffle, a total of six people, Kazama Wataru and Kijima Hayato who piloted the plane, Ryui Takada and Mamoru Mikazuki who surveyed the field, and Asukina and Daichi.

Dr. Gelman, who was still watching, shook his head.

"It's just that how can you learn the breathing method with such training, come and come, come with me!"

Chen Xin and Jiang Nan, who were practicing with the old man next to them, were also stopped, and the two of them really didn't understand why the old man could not touch the old man's body by just holding a rope.

Several times, the rope twitched irregularly, completely blocking the attacks of the two of them.

Except for Chen Xin and Jiang Nan, everyone from the Gio team lined up in two rows, running forward, and the old man smiled and followed with Chen Xin and Jiang Nan.

Everyone was taken by Dr. Gelman to a huge warehouse, which was empty, and when Dr. Gelman pressed a button, dozens of robots ejected directly from the other side of the warehouse, each with a knife.

Robots have a circular indicator light on their chests, and they are not much different from ordinary humans except that they have no face, nor can they be said to have no face, they have a huge X on their faces.

"What is this going to do?" The earth was a little confused.

"Originally, I was going to get some robots and let them use the Nichiren knife to kill ghosts, but now it seems that there is no chance, these robots, the chip has the top swordsmanship, come on, let them be your sparring partner!"

Wataru Kazama shook the wooden knife in his hand.

"Are you serious?"

Dr. Gelman snapped his fingers, then ran away.

The X's on the faces of dozens of robots lit up, and then they pulled out their knives together.