According to the "Sacred Heart Sutra of Medicine", the difference between the nine characters of Dongying and the King of Fudo is that through practice, Dongying ninjas temper their own will, and their spirit becomes extremely pure and tenacious, and the potential in their bodies will be developed to the maximum, and they can completely remove the confusion and fear of the soul and devote themselves to battle.

Because most of the tasks performed by ninjas are high-risk missions that never go back, and completing tasks alone in the lair of enemies has to overcome many difficulties such as death, loneliness, darkness, hunger, cold, injury, etc., so ninjas must have strong mental strength.

And the nine-character mantra of the King of Immovable Ming, in addition to relying on spiritual power to communicate with the universe, so as to resonate with heaven and earth, and achieve the realm of the unity of heaven and man, so as to borrow the power of heaven and earth to strengthen himself, call for wind and rain, go to heaven and earth, almost omnipotent, but what is really it, Qin Yu doesn't know, anyway, with his current strength. At least to break through the agility period, maybe you can give it a try.

But Dongying Ninjutsu still has its strength, at least Qin Yu's current opinion, the real Dongying Secret Technique is still very powerful.

Therefore, Qin Yu is still very interested in Dongying Ninjutsu, perhaps, this will be of great benefit to the cultivation of the nine-character mantra in the future.

But the cultivation of spiritual power is very cruel, even a little cruel.

It includes something that every ninja must be proficient in. And every training is all death knockout, and those who can't bear it are not allowed to survive.

The above is just the regular training of Toei ninjutsu.

In addition to these, ninjutsu also includes a variety of "monster training" through which ninjas further hone their will, endurance, survivability, and more.

This kind of strange training, such as not eating for days on end, killing one's own companions, and fighting fierce beasts, is unimaginable.

What's more, in order to train high-level ninjas, some families drive some talented children out of their homes, and send people to disfigure them, accept insults from the world, and also carry out physical training to improve their mental strength.

Of course, there are also some children who often commit suicide because they can't stand the shame, which is nothing to pity for the training institution, just die.

Through these inhumane practices, ninjas have achieved superhuman leaps from spirit to body, and have gained perseverance, endurance, and combat effectiveness beyond ordinary people, all of which are absolutely reliable full-power fighting machines.

Of course, the nine coaches that Qin Yu met in the Karate Club today were not Dongying ninjutsu masters, otherwise Qin Yu would not have defeated these people in seconds.

Qin Yu wasn't sure if there were real Dongying ninjas in the Famen, maybe they thought that there was no need for real ninjas to be in charge of just one school.

However, it is precisely because of this perverted cultivation method that the streets of Dongying Country will not be full of ninjas.

It seems that the people in the karate club are not ruthless enough, they are all half-monks, but when they meet real Dongying ninjas in the future, they must not be merciful.

This scourge kills one less one!

Qin Yu flipped through the book again, and finally found some less perverted cultivation methods.

The method of contemplating things, threading the needle and leading the thread, and drawing the knife are all very conventional methods of spiritual power cultivation.

Object observation, as the name suggests, is to stare at a small object in the distance for a long time, such as a coin, when you hold it in your hand, every pattern on it is clearly recognizable, but if you put it ten meters away, you can see a coin, and a hundred meters away, I am afraid you can't see anything.

Threading a needle is very simple, that is, threading a thread into the eye of the needle, but it is difficult to practice to thread hundreds of needles in a second.

As for the knife drawing technique, it is how many times to draw the knife within the specified time, and it is to pull it out and put it back, legend has it that Miyamoto Musashi, the most powerful swordsman in Toei, has never seen him draw a knife, because his opponent has died as soon as he comes out of the knife.

Qin Yu has been a doctor and martial artist since he was a child, and he has been learning acupuncture and flying needles with the old man since he was a child, and he can use iron needles to control people in the air with great accuracy at short distances, but he can only keep it within thirty meters, that is to say, Qin Yu's spiritual power can only be released to thirty meters, and beyond this distance, Qin Yu will lose his head.

But the old man can maintain within fifty meters, the old man said that this is because Qin Yu's spiritual power is not enough, if his spiritual power is strong enough, he can completely use his internal force to wrap the iron needle, and use the iron needle as a hidden weapon at a greater distance, killing people invisibly.

Spiritual power is not the same as the internal force of a martial artist, the internal force needs to be obtained by absorbing the vitality of heaven and earth step by step, and spiritual power is born with it, it is just a matter of strength and weakness, just like the spiritual power of a sharpshooter is far greater than that of ordinary people, because they practice shooting and aiming all year round.

Qin Yu decided to cultivate spiritual power, but unfortunately he didn't have a knife or needle now, and the only thing he could cultivate was the art of contemplating things.

Qin Yu found a coin and placed it at a distance of thirty-five meters, the current distance from which his spiritual power was released was thirty meters, which was far from strong enough, he had to start looking at things from a distance of thirty-five meters.

Don't underestimate the extra five meters. Qin Yu could only see the number of his eldest nephew on it, but he couldn't see the lines, and after only watching it for a while, he felt his eyes glaze.

Qin Yu's internal strength surged, the fatigue of his eyes was swept away, and Qin Yu continued to look at the coin.

After a while, my eyes became dry again.

Qin Yu swept it with his internal force again, and the fatigue was swept away again.

After repeating it several times, Qin Yu was finally able to see the lines on the coin.

Qin Yu was overjoyed, placed the coin forty meters away, and continued to look at things.

Generally speaking, cultivation does not happen overnight, and it cannot be achieved overnight.

For example, the art of contemplating things, it is recorded in the book of Toei Ninjutsu that the average ninja needs to accumulate over time, step by step, and it will take several years before they can release their spiritual power to fifty meters, which is counted as a small achievement of the art of contemplating things.

Qin Yu had been cultivating for two hours, and his spiritual power could actually be released from a distance of forty meters.

This is because Qin Yu himself is an innate master, and he can use internal force to eliminate visual fatigue, so as to further cultivate.

At this time, the Anti-Qin Alliance was holding an online meeting to study how to stop the Qinyu Cholera School.

Li Xinyuan said: "The coach of the Taekwondo Club was stunned by a move, which shows that Qin Yu is really powerful, and it is not so easy to defeat him!"

"There is no endless road, I don't believe that Qin Yu can be so arrogant all the time. Teacher Feng gritted his teeth with hatred, it was Qin Yu who pretended to be him, and he was beaten by the people of the Taekwondo Club and lay in the hospital for three days and two nights.

"Teacher Feng, Qin Yu defeated the coach of the Taekwondo Club and became the honorary coach of the Martial Arts Club again, and he is in the limelight at school, so let's not act rashly. Wu Feifei said.

"No! Qin Yu is arrogant and domineering, he is the scum of the school, and he must be driven out of the school! Teacher Feng, as the head teacher, you must find a way!" Teacher Wang cried with a sad face, for him, if Qin Yu is not removed for a day, he will have to be a teacher with his tail between his legs, this feeling is very unpleasant.

"Siyuan, what do you think?"

The next day, Wang Ma Siyuan sighed and said: "Qin Yu is very strong, he defeated the coach of the Taekwondo Club in one move, and gained a lot of popularity, plus he is the honorary coach of our martial arts club, so it is no longer realistic to deal with him at school! ”

In fact, Ma Siyuan was ready to give up dealing with Qin Yu, after all, Qin Yu and him did not have a head-on friction.

At this time, Han Xiaohu suddenly sent a message: "It's not that there is no way, but you need to spend some money!"

"What's the solution?"

"Killer please!"

(PS: Thank you netizens for the recommendation votes of recent book friends, thank you for the tips of book friends pandaboy, Xinxin, Odada, Alfred, thank you book friends pandaboy, Dream Back to the Tang Dynasty, Alfred, Sunset, Bright Sunshine, If, ID 319 and other book friends for their recommendation votes!)