“！” Kakashi and Kai were surprised to see the vanished chakra dragon reappear. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

""I flow" is the ultimate secret technique of the human form in Xingyi Boxing,In the case of casting "I flow",The user can have shadow-level combat power,As only in the state of "I flow"Super nirvana,"Lushan Bailongba" is not as simple as a simple fist Oh,The chakra dragon blasted out by the Bailongba has a strong "I" will,Can devour the natural energy of nature into their own chakra,Unless it is forcibly defeated by the peacock just now,Otherwise, as long as the will of "me" has not dissipated, They won't go away. Iruka said coolly with his hands on his chest.

"Shadow!" Kakashi said in shock. However, Kai, who had fought Iruka at close range, was not surprised, although he knew that he had not used the seventh gate he had just cultivated in the battle just now, but Kai, the master of physical arts, could sense that Iruka, as an opponent, obviously did not use all his strength.

"Going back to the topic, a strong physique is the most important quality of a ninja. To prove this argument, I propose here a concept of fault tolerance. Iruka took out the demeanor of the great teacher, his fingers changed, and then he slapped it on the ground and drank: "Spiritism - the field class of the great teacher!" ”

“Boom！” Blackboards, chalk, podiums, tables and chairs appeared in the open space as the smoke dissipated, and everyone Xiaoqiang found their seats familiarly, and Kai and Kakashi's eyes widened, there was still this kind of technique!

"First of all, the concept of fault tolerance refers to the probability that some factors can be reduced or selected in a system will be unstable for a certain system. The higher the fault tolerance, the less impact on the effect; The lower the fault tolerance, the greater the impact on the effect. "The author poured water through Iruka's mouth with pleasure.

"If you put it in the ninja system, in layman's terms, it's how many times you and your teammates are allowed to make mistakes in a battle without losing the battle or the entire mission. Or be able to come back alive after a failed mission. Iruka began to pick up chalk and write on the blackboard.

Kakashi nodded, walked to the back of the classroom, pulled up a chair and sat down, Kai watched Kakashi walk towards the classroom, hurriedly rushed over to sit down before Kakashi, and turned back to Kakashi with a bright smile.

"There are many types of ninjas, speed-based, power-based, ninjutsu-based, illusion-based, and mystical-type, and there are many people who have powerful mystical techniques or extremely fast speed, and can avoid the attacks of others, but not be attacked, which is a refutation in itself, you will always encounter a faster speed than you, or can restrain you, or even a trap set up specifically for you. Then at this time, the benefits of having a strong physical body come out all over the place. Iruka picked up the glass of water from the podium and took a sip.

"No matter how many tricks the opponent uses, the final attack always has to fall on your body to be considered an effective attack, at this time, your HP, oh, in Japanese, is the sum of the ability to resist hits, vitality, defense, etc., and how many times and how powerful the attack your body can withstand, is the guarantee of your survival."

Ino raised his hand and asked, "So, Iruka-sensei, what if the enemy uses illusions?" ”

"Illusion is the same, the damage suffered by the human body in illusion, if it can't be converted into physical damage, then we can claim that this attack is basically an ineffective attack, when people are so fragile that they are mentally broken by illusion and pass out, then I can only say, either you have met a shadow-level illusion master, or you are not suitable to be a ninja at all." Iruka glanced at Kakashi and continued, "Of course, there are some illusions that can transfer the damage taken in the illusion to the body, and again, if your body is strong enough, you can last a while longer than those ninjas who are not physically strong, I think Kakashi and Kai, the two shinobi, should be deeply touched, anything can happen before the battle is over." ”

The Xiaoqiang turned their heads and looked at Kakashi and Kai, who were sitting at the end, and Kakashi and Kai nodded.

"Of course, there is no absolute saying about everything, because in this world, there is no shortage of techniques to pursue one-hit killing, but according to my observation, most of the so-called one-hit killing techniques are actually just high-power attacks that make the opponent unable to dodge, such as this white-haired shinobi sitting behind you, and the thousand birds he has are this kind of technique."

The group turned their heads again, and Kakashi scratched his head and nodded to everyone again.

"In the face of this kind of technique, a strong body is very important, because the human body is too fragile, the creator of this technique often thinks more about how to hit the opponent, how to break through the opponent's defense, and rarely thinks about one thing, that is, what if the opponent hits, but the opponent is not dead, in this case, in fact, it is the best opportunity to counter-kill."

Kakashi's heart moved, frowning slightly.

"Iruka-sensei!" Not to be outdone in front of Sasuke, Sakura also raised her hand and asked, "You said that most of them are high-power attacks that can't be dodged?" Are there any other one-hit kills? ”

"Yes!" Iruka nodded: "There is also a one-hit killing technique, I call it a death attack, this technique often has nothing to do with power, but pursues more subtle aspects such as soul and cause and effect to hit the opponent, for example, I know a famous knife called Sparrowbee, its ability is a two-stage kill, that is, when this knife hits the same place twice, then that person will die." ”

“！” The crowd's eyes widened.

"There is also a famous gun, called Piercing Death Thorn Rush, the ability is to reverse cause and effect, and at the moment of release, the "effect" of "the opponent's heart is pierced" will be created first. "Because the heart was pierced, the gun was hit," this "cause" occurs from behind. If you are not quite lucky, it can be said that it is a move that is determined to be "if you release it, you will die". Looking at the stunned crowd, Iruka said that she was pretending to be very happy.

"Of course, these artifacts have long been lost, but in the secret book of "Fantasy Bajiquan" that I showed you, there is a hidden ultimate stunt called "No Two Fights". The Xiaoqiang listened attentively, and Iruka continued: "Wujida is a stunt that is used to "swallow qi" opponents that a boxing master named Li Shuwen sublimated from Bajiquan, and it is rumored that almost all the people killed by him are not internal organs bursting, but similar to shock death. In addition, Li, Li Shuwen's predecessors have the same surname as you! ”

"Oh!" Xiao Li's whole person began to shine with the light of youth.

"Although there are countless ninjutsu in the entire ninja world, it can be said that there should be no more than 5 kinds of ninjutsu and weapons with instant death attacks, and they are all in the hands of characters at least the shadow level, or even above the shadow level. And in addition to this kind of attack that is almost considered to be the death of the middle, I think that a strong physique can allow you to greatly improve the fault tolerance rate from the rest of the technique, and the increase in the fault tolerance rate represents a substantial increase in the success rate of survival and task completion, and now you don't agree with what I said, a strong physique is the most important quality of a ninja. Iruka said in a declarative tone.

Everyone including Kai nodded their heads, only Kakashi raised his hand.

"Iruka-sensei, I've noticed that you said that an instantaneous attack is almost certain to death?"

"Oh, there are no absolute things in the world, some people study how to kill with one hit, then naturally some people study how not to die, the simplest example is that I know several techniques to resist death, and extremely special techniques that can make people continue to fight for a period of time even if their hearts are broken or their blood is drained. However, this kind of technique is either extremely physically demanding, or mentally demanding. None of them, including Kai, met the minimum requirements for cultivating this technique. Iruka patiently explained: "Now that class is over, let's all go back on the weekend, Mr. Kai, you can stay for a while." ”

Hearing that the group of Xiaoqiang who had finished the class were scattered, Dingji and Hinata were the most polite, saluted Iruka, and then followed in the direction of Shikamaru and Naruto.

Kakashi also turned into a cloud of smoke, ready to report to the three generations of what he had seen today.