This hairball is no ordinary hairball.

First of all, the hair that is braided with hairballs grows rapidly under the catalysis of chakra, and if the chakra is delicately controlled to stimulate the division of hair root cells, the organic molecular structure that makes up the hair can also be specially designed.

Naruto's hair adopts an imitation carbon nanotube structure, the tensile strength of carbon nanotubes reaches 50~200GPa, which is a hundred times that of steel, and its elastic modulus can reach 1TPa, which is comparable to the elastic modulus of diamond, about 5 times that of steel.

In the center of the carbon nanotubes, there are holes in the nanotubes that supply the chakra flow to ensure that the special physical properties of the chakra particles are added to each organic molecule, further increasing the tenacity of the hair strands.

Ordinary hair that grows casually can be as hard as steel after being infused with chakra, and how strong will the hair be when it makes use of the nanotube channels of chakra?

It is no longer possible to compare the substances that exist in the real world, but it can only be said that the hardness and toughness have reached an incredible level!

Using the principles of molecular mechanics wisely, the hair that Naruto used to weave the hairball was the toughest hair in the ninja world, and the divine hair of the Otsuki Kazuki may not be comparable.

Secondly, the hair structure of the braided hair ball also conforms to the basic mechanical principle, which is the optimal force structure that has been digitally simulated by hundreds of billions of times of supercomputer, and then accurately calculated, which can perfectly remove all external forces exerted on the surface of the ball.

Structural force analysis is often used in the architectural design industry to design bridges and skyscrapers, in addition to calculating the load-bearing capacity of large buildings, it is also necessary to calculate wind resistance, internal stresses, elastic forces, and so on.

Just like the weaving technology of Kevlar bulletproof vest, it fully takes into account the factors of the influence of Kevlar fiber weaving method on force discharge, and the weaving technology that constitutes the surface of the hairball ball ensures that every hair fiber on the stressed surface area can be evenly stressed when subjected to strong external impact.

The hair-filled contents that support the surface of the sphere are also a three-dimensional honeycomb grid structure similar to the optimal bridge stress structure, which can absorb the impact of external forces to the greatest extent.

Finally, the surface of the sphere is not smooth, and the specially designed wave-like miniature lines are like a diversion dam, which can split the air waves that impact on it into fine turbulence, and dissolve the shear force of the wind blade hitting the surface of the sphere.

In addition, on the whole, the big furball is like a tumbleweed, not only fluffy but also rolling around.

Ning Ci first slapped sixty-four palms, and the palm force bounced back on the hairball like a leather ball, and the wind blade cut it and collapsed instantly, and finally he angrily cast the Konoha Dragon God, and the tornado whipped on it only hit the hairball everywhere, and the wind blade cut off a lot of stubble, but it couldn't stand Naruto's input chakra to manipulate the hair root cells to divide wildly, and the cut hair didn't grow much.

opened the Eight Gates Dunjia, Ning Ci's speed surpassed the speed of sound, his physical skills were at the peak, close to perfection, he comprehended the artistic conception of Tai Chi's "circle", and he went through the ninja world several times, and in terms of physical combat alone, no one except Xiao Li was his opponent.

It's a pity that his opponent is not a person at all, but a ball, and his extraordinary physical skills can't be played at all.

The golden furball can only be passively defended, as long as Ning Ci is close, sharp hair spikes will suddenly pierce out, and the skin will be pierced by the hair, and the hair will drill into the human body like a living worm, destroying the human body from the inside, and the lethality is weird and fierce.

The more he beat Ning Ci, the more depressed he became, and he only felt that his dog had bitten the hedgehog, and he had no way to start, and he wasted a lot of chakras in vain. He simply stopped for the time being, no longer attacking blindly, and confronted the big hairball from afar.

At this time, the simulated battlefield in the center of the stadium had been destroyed in Ning Ci's frantic attack just now.

The ground is full of vertical and horizontal ravines cut and ploughed by the wind blade, and there is a large crater blown out by a tornado in the center of the field.

The ninjas from all villages watching the battle were stunned as if they had seen a ghost.

Konoha ninjas are okay, the two of them in the field are Konoha lower ninjas, and the stronger they behave, the more pleased they are, and the ninjas in other villages can't help but start to reassess the strength of Konoha Village.

"Is Konoha's Shinobi a monster?" A ninja from Sand Hidden Village muttered.

"The strength of that kid from the Hyuga clan is really at the shadow level, and the information in the second game of the middle ninja exam is accurate!"

"Naruto Uzumaki, who fought against him, is not simple, he has survived the onslaught of a shadow-level physical ninja for so long, doesn't it mean that he just graduated from the ninja school, and his graduation grades are also very average?"

"Didn't you get the news? The camp of Kusa Ninja Village was destroyed by him alone, and he injured twelve Kusa ninjas, saying that it was to rob women......"

"Oh? This one should be written down, go back to the village to discuss with the leader, choose the best female ninja in the village, and try to use the beauty strategy against him. ”

"That's a good idea, I'll report to Tsuchikage-sama when I go back to the village, but Tsuchikage-sama has a beautiful granddaughter......"

……

The out-of-town ninjas in the audience were talking, and the one-man one-goal confrontation in the center of the court began the second round of exchanges.

"Naruto, you coward, shrunken turtle!"

Ning Ji tried to make two more moves, and the big hairball kept spinning, but it had no lethal effect on Naruto who was hiding in it, so angry that he sneered loudly: "This is what you call facing a shadow-level ninja?" It's just like an armadillo shrunk into a ball, and it is just beaten passively with thick hair! I may not be able to kill you, but if I throw you out of the arena, you'll lose! ”

A muffled voice came from the furball: "Hmph, do you think that's all the ninjutsu I developed specifically for you?" ”

As he spoke, the hairball suddenly stretched out a lot of hair tentacles, looking like a big sea urchin from a distance, the tentacles climbed the ground, as if the hairball had countless feet, the hair tentacles suddenly flicked, bounced the big ball, smashed it at Ning Ci, and actually started to take the initiative to attack.

The tentacles woven from hair perform their duties, some tentacles wrap around Ning Ci like pythons, restricting his high-speed movement, and some tentacles separate five forks, condensing a blue spiral ball of light in the center of the bifurcation, and fancy rubbing the spiral pill with hair, just waiting for Ning Ci to be entangled, and the spiral pill rubbed out is about to hit him.

Ning Ci hurriedly dodged and flew back, and the hairball was also chased after by the tentacles, and the ground where it passed was whipped into dust, and the movement speed was not slow, like a maggot on the tarsal bone to chase Ning Ci.

Ning Ci was extremely uncomfortable, since he graduated from the Maitroth training, he had never been so embarrassed, he only felt that he was not fighting people, he was fighting a strange tentacle monster.

Fortunately, Naruto's hair was blonde, and the big hairballs that changed into them looked a little cute, and many girls watching the battle screamed "kawaii, waw kayi".

If you change to another color, such as black or brown, it will look very disgusting, and the ugliness is similar to the "Earth Resentment" form of the Horn Secret Technique.

In fact, the technique of lion's mane is not really an absolute defense, and the fire escape ninjutsu has great restraint on the hair ninjutsu, if Ning Ci sees the right time to cast a powerful fire escape, he can burn most of the hair with a fire.

In order to absorb kinetic energy, there are many gaps between the hairballs, which cannot completely block the air, and the use of highly poisonous poison gas can also kill and injure Naruto who is hiding in the center of the hairball.

But the problem is that Ning Ci neither knows how to use poison, nor is he good at fire escape, whether it is Hyuga Soft Fist or Nandou Water Bird Fist, they are both physical techniques created for destroying the human body, and there is no trick of how to attack a big hairball in the Hyuga Fist Secret Book and Nandou Water Bird Fist.

Hinata Ninji also comprehended the artistic conception of Tai Chi Harmony, but it was a pity that Naruto was more mellow than him, and they all became a big ball, and whoever was rounder with the ball probably couldn't compare with the result.

Ning Ci's wind blade and soft fist are ineffective against the hairball, and it is not so easy for the hairball to entangle Ning Ci with its tentacles.

One man and one ball attacked each other for a round, and it was found that no one could help anyone, and the rest of the game went into garbage time, probably until one of them ran out of chakra.

Ning Ji was trained by Matrono to have a bodybuilding muscle, excellent physical strength, Naruto was naturally full of energy and vitality, and they consumed each other, and they really had to be consumed, and they would not produce results until it was dark.

Sarutobi also saw that the two of them had entered the stage of a war of attrition, and there was no point in continuing to entangle, so he suspended the round of duel in the name of the Hokage, and decided that the two sides were tied.

Naruto calmly accepted the verdict of the tie, after all, the middle ninja exam is not a real battle, and he will be able to use the scientific ninja freely in the actual battle, and the attack methods will be more diversified at that time, even if the opponent is a physical arts master like Shi Ningji, it is inevitable that he will be hit.

For example, a high-energy battery is installed inside the hairball to electrify the carbon nanotubes, and the high-voltage hair whip can produce the high-temperature cutting force of the electric whip, the signature weapon of Iron Man's sworn enemy, the Death Whip.

Another example is the installation of a high-frequency generator for high-frequency oscillation, a hair that reaches the frequency of high-frequency oscillation has the sharpness of sharpening iron like clay, and then 100,000 hairs are 100,000 magic weapons, which can be wielded to shatter everything that comes close.

……

Ning Ci was very unwilling, so angry that the green tendons around his eyes were rising, and he was deeply annoyed that he couldn't teach a scumbag for Hinata's sister, but he thought about it carefully, this hairball ninja was really his nemesis, not only was his body soft fist restrained, but even his white eyes couldn't see through the inside of the hairball.

Under the observation of the white eyes, the chakra meridians looked white, and every hair of the woven hairball was infused with chakra, and the white eyes could only see a white expanse, and they couldn't see through the inside of the big ball woven by chakra.

When Naruto and Ninji glared at each other and left the battlefield, the ninjas in the spectator seats began to talk again.

"In this year's middle ninja exam, there are a lot of people who advance to the third round of the competition, I thought there was a shady scene, it was a dark box operation of Konoha . Now it seems that the quality of Konoha Shinobi is indeed extraordinary! ”

"Are the two people who fought just now really shinobi? In the war a long time ago, it's not like I haven't fought with Konoha Shinobi, how do I feel that Konoha Shinobi is not as good as them? ”

"The middle ninja exam is actually the epitome of the ninja village war, judging from the performance of the current Konoha Shinobi, in a few years, this Shinobi will grow up to become the backbone of Konoha , and the other four major ninja villages will join forces, and they are not necessarily Konoha opponents!"

"Konoha is growing in economic strength day by day, and if they continue to sit back and watch their ninjas grow, won't Konoha be the only one in the entire ninja world in the future? Are we going to surrender to Konoha obediently? ”

"Fool, be careful, go back to the village and tell the village leaders, don't reveal hostility here!"

……