Looking at Kai's fighting spirit, Kakashi couldn't bear to interrupt Kai, but if he didn't interrupt, I'm afraid Kai wouldn't pay attention to Kakashi and start practicing directly, maybe he would run away.

That Kakashi's purpose for coming today was in vain.

I don't know when Kakashi will be next time, but there are a lot of tasks in the shadows, and he may be called away at any time to carry out the mission.

So, Kakashi ruthlessly interrupts Kai's erupting youth.

"Kai, wait a minute."

Kakashi's loud shouts finally brought Kai back to his senses.

"Ah, Kakashi, you called me? What's wrong? ”

Looking at Kai's bewildered look, Kakashi was helpless, this brain is really a tendon.

"I won this duel, so I want to ask you to teach me the Eight Gate Dunjia."

"Eight Gate Dunjia?"

Kai was a little surprised, he didn't expect Kakashi to ask him to teach him this physical technique.

"Kakashi, the Eight Gates Dunjia is not so easy to learn, I've practiced for so many years, and now I can only open the Sixth Gate."

Kai's face was unusually serious, which shows how serious Kai is at this time.

"Ah, I know, but I'll leave it to you." Kakashi also had a solemn face, this decision Kakashi was not made in a hurry, but after a certain amount of consideration.

The Eight Gates Dunjia is not only the pinnacle of physical skills in the Hokage, but also the only way to enhance the physique, if it is not a strong physique, it is impossible to open the Eight Gates Dunjia at all.

And one of the things that Kakashi values is the method of strengthening his physique.

Only a combination of a strong physique and a strong mental power can have a strong chakra. In terms of spiritual power, the fusion of Kakashi's two souls is now much stronger than ordinary people, and if his physique is also enhanced, Chakra will definitely skyrocket.

And the Eight Gates Dunjia has been cultivated to a certain extent, as long as the Eighth Gate of Death is not opened, it can also be used as a big killer feature. In the future, there will be many enemies who can absorb the existence of chakra, and when the time comes, physical art will become a major way to fight them.

For example, the six paths of Payne, such as the dried persimmon ghost shark, such as the spotted and the striped soil.

The physical technique is strong enough, and it will also be of great help to Kakashi to use the flag wood sword technique.

Combining all of the above, learning the Eight Gates Dunjia has become an extremely good choice. And now among Konoha, the only person Kakashi knows who has mastered the Eight Gate Dunjia is Kai.

And with the relationship between Kakashi and Kai, Kai will not be stingy with this kind of trick.

That's why Kakashi finds Kai and asks for Kai's help.

Seeing Kakashi's solemn face, Kai knew that Kakashi wasn't joking, so he bared his white teeth and made a youthful pose.

"It's really worthy of being my eternal opponent, and sure enough, he has the same perseverance as me, okay, then from today on, let's practice the Eight Gates Dunjia together."

"Thank you, Kay."

"No, no, in that case, Kakashi, you can also teach me the mysteries of your Konoha physical arts, it's the thousand-year-old kill just now, the power is really amazing!"

Kakashi was stunned for a moment, he didn't expect Kai to be interested in the Millennium Killing, and for a while, Kakashi's gaze at Kai became a little weird.

"Yes, no problem."

"Yo Xi, it's really amazing, I didn't expect to be able to learn such a powerful physical technique."

Kakashi was speechless...... It was as if a crow flew by, calling Aho Aho Aho......

"Kakashi, now I'll tell you the mystery of the Eight Gate Dunjia."

"Hmm."

Kakashi nodded, and began to listen carefully, how did the Hokage's strongest physical technique, the Eight Gate Dunjia, practice.

"There are a total of eight doors in the Eight Gates Dunjia, which can unlock the eight doors of the human body that restrict Chakra, and gain powerful power in an instant, if you unlock the eight doors at the same time, you will get very terrifying power, but you will definitely die. My father opened the door of death and killed four of the ninja sword seven, but he also died in the end. ”

Kai said that there was some sadness here, after all, this was not long ago, and it was a huge blow to Kai, but Kai, who had a cheerful personality, quickly came out of the shadows.

Kakashi saw that Kai's face was not right, and he understood what was going on, but he didn't say anything, and it was useless to say anything comforting at this time, and it was enough to accompany him silently.

Kai was worthy of being a creature with a tendon, and soon regained his vitality, and then said: "The eight gates are open, rest, life, injury, Du, Jing, shock, and death. With each opening, the burden on the body increases by one point, but in the same way, the strength will increase several times. ”

"In fact, the first three doors of the Eight Gate Dunjia are not very damaging to the body, and the real meaning of the Eight Gate Dunjia starts from the fourth gate. Open the door and remove the restriction of the brain domain to achieve the purpose of exerting 100% of the physical ability, overloading the body energy to improve attack and speed. ”

"Closing the door, lifting the physical fatigue limit, overloading the body to squeeze the body's energy to restore physical strength, and offset the fatigue caused by the energy consumption rate of the door opening."

"Shengmen, further improve the attack and speed, the body begins to become congested and red, and the last safe area of the Eight Gate Dunjia, the body begins to emit green energy."

"Hurt the door, further improve the attack and speed, the body began to be damaged, enter the danger zone of the Eight Gate Dunjia, and enter the state of the Eight Gate Dunjia in the real sense."

"These four doors are less dangerous, and when they reach the fifth gate, they will cause a lot of damage to the body, and if you don't practice enough, you are likely to be seriously injured and die, so you need to use them with caution."

Kakashi listened carefully and quickly understood the benefits of the Eight Gate Dunjia. At least after a period of practice, there is no need to worry about putting too much load on the body by using the first three doors.

That kind of load may not be as high as using a single writing wheel.

In other words, after learning the first three gates, Kakashi's strength will usher in a short burst.

Sure enough, Bamen Dunjia is really a good thing.

"Kakashi, do you understand?"

"Well, I get it."

"It's okay if you don't understand, I'll say it again. What the? You say you get it? Kai looked at Kakashi in disbelief, clearly unable to accept the fact that Kakashi understood at once.

You must know that when Kai's father Dai taught Kai, he explained many times before Kai fully understood.

"Well, I understand." Kakashi nodded, looking harmless to humans and animals.

Kai burst into tears.

"Ah, it's really Kakashi, it's really my lifelong opponent!"

Kakashi smiled, his eyes crooked into crescents.

"Okay, now let's start cultivating the Eight Gates Dunjia!"

"Hmm."

Kakashi knew that the next thing was the main event, how the veritable Hokage's first body technique was practiced, and at this moment Kakashi finally saw its mysterious veil, and its terrifying power under that veil!