"Hey, hey, what are you two thinking?"

After hearing his description of the 'Gate of Death', Hinata and Kakashi not only did not show the slightest shock, but instead looked thoughtful, as if they were both thinking about how to use the 'Gate of Death', which made Cayton speechless.

Kakashi shook his head, and as he collected his thoughts, he replied, "No... Didn't think about anything. ”

Hinata Mirror also retracted his scattered thoughts and smiled: "Don't worry, we know what's at stake, and we won't open the 'door of death' at will." ”

Kai shouted, "You two guys are too arrogant, don't you think that the 'door to death' can be opened when it is opened?" I've practiced hard for so many years, and I've sweated a lot, and I've barely reached the seventh 'Shocking Gate', and it's still far from opening the eighth 'Death Gate'..."

Kakashi interrupted Kai and said, "Kai, we all know this, don't waste time, let's start teaching us the 'Eight Gate Dunjia' now." ”

Kai stopped talking nonsense, and directly told Kakashi and Hinata Kagami in detail about the opening skills of the first door 'Open the Door' in the 'Eight Gate Dunjia', as well as the relevant precautions.

Then, Kai looked at the two of them with a confirmed look: "You all understand, right?" ”

Kakashi and Hinata looked at each other, then nodded at Kai in unison.

"As the first of the eight doors, the difficulty of opening the door is low, and it is relatively easy for the body to adapt, but even so, it cannot be opened overnight." After a pause, Kai continued: "In this way, I will now rehearse for you the state of opening the 'open door', and you two will get acquainted with it." ”

"Drink!"

With that, Kai snorted softly, and in an instant, the chakra fluctuations on his body skyrocketed.

Whew...

Immediately afterwards, Kai easily completed a few instantaneous techniques in the scream of the breaking wind, and finally flashed back to the place, his face was not red, and he explained to the two of them without panting: "The 'open door' located in the brain restricts the physical energy of our body, as long as we turn it on, we can use our physical energy 100%, whether it is speed, strength, or anti-fatigue ability, it will be greatly improved!" ”

The white-eyed Hyuga Mirror was activated, and he immediately nodded and said, "Well, the effect is obvious!" ”

In the field of vision of the white eyes of the helioscope, after opening the 'open door', Kai's chakra flow in his body and the expansion and contraction of muscle tissues in various parts of his body have been significantly improved.

It can be said that although the 'Open the Door' is only the first of the 'Eight Gate Dunjia', the effect after opening it cannot be underestimated, and because it is acting on the body's functions, the stronger the physique and the higher the physical skills of the ninja, the more significant the effect after opening.

This point has also been used in actual battles, for example, after Kai's father Maite Dai opened the eighth gate 'Death Gate', when facing the Seven Men of the Fog Hidden Ninja Knife, he killed four of them in one fell swoop, and Kai, who had a better foundation and stronger strength, opened the eighth gate 'Death Gate', and almost kicked Uchiha Madara to death in the state of the six realms.

Like Hinata, Kakashi also had a solemn face: "It is worthy of the ultimate mystery of the Gunken Stream!" ”

Kai gave a thumbs up to Kakashi and Hinata Kagami at this time, and laughed, "Awesome, this is the mastery of the Konoha Azure Beast!" As long as you two are willing to cultivate hard, I'm sure you'll be able to do so in a few months..."

"Drink!"

Before Kai could finish speaking, Kakashi let out a low snort and opened the 'open door'.

"Drink!"

I tried it with the Hyuga mirror, and I successfully opened the 'open door'.

"You... You guys...?! ”

Kai's mouth opened wide in shock, and he looked incredulous.

When his father instructed him to cultivate the 'Eight Gates Dunjia', he practiced hard for more than 100 days and nights before he mastered the technique of opening the 'Open the Door' and got his body used to the state of opening the 'Open the Door', so he never thought that Kakashi and Hinata Mirror would successfully open the 'Open the Door' just by listening to their own explanations and watching their own drills.

Whether it's Hinata Kagami or Kakashi, they can't take care of the surprised Kai at this moment.

After successfully opening the 'Open Door', the two of them seemed to have stepped into a new world, so at the moment their minds were all focused on feeling the changes in their bodies after opening the 'Open Door'.

Looking at the Hinata Mirror, who was immersed in feeling the changes brought by the 'opening of the door' to his body, Kakashi and Kai sighed, "You geniuses are too bullying!" ”

Kakashi's ability to open the 'open door' so smoothly is indeed due to talent.

But the Hyuga mirror can also go so smoothly, but not because of talent, but because he is familiar with the structure of the human body, and has received detailed guidance from Kai, plus his current strength has surpassed the ordinary shadow level, and under the commanding height, he can open the 'open door' so lightly.

In fact, if Kai had only come into contact with the 'Eight Gate Dunjia' at this time, then his speed of opening the 'Open Door' would not be much slower than Kakashi and Hinata's.

After a while, the two came back to their senses one after another.

Kakashi said, "Kai, go ahead, it's the turn of the second gate!" ”

Kai looked at the two people in front of him like a monster and asked, "Hey, you two guys don't want to learn the 'Eight Gates Dunjia' in one day today, right?" ”

Kakashi was a little puzzled: "Isn't one day enough?" ”

Hinata Mirror said: "How can it be in one day, this is the 'Eight Gate Dunjia'!" ”

Kay nodded repeatedly.

Hinata then said, "I guess it's going to take a week!" ”

Kai was angry and annoyed: "Okay, I'd like to see how many doors you two can open today!" ”

Kai didn't mean to be jealous of Hyuga Mirror and Kakashi, the physical art cultivation to the point where he was like this, his heart was already as solid as a rock, and he would not be easily shaken, he was just a little curious about whether the true geniuses cultivating the forbidden technique of 'Eight Gates Dunjia' was as easy as cultivating other ninjutsu.

Without delay, Kai immediately explained the essentials and precautions for opening the second 'Closed Gate', and once again demonstrated the effect of opening the 'Closed Door' to Hyugami and Kakashi in person.

After a period of research, and after two hours of attempts, the Hyuga mirror finally succeeded in opening the 'closed door'.

And Kakashi, who had just opened the 'Open Door' in front of the Hyuga Mirror, fell behind the Hyuga Mirror when he opened the 'Closed Gate', and it took a full three hours to successfully open the second Door 'Closed Gate', which shows that although talent is important, it is just a talent, and it is no match for experience, vision, theoretical knowledge, and the powerful Chakra.

Soon, the two looked at Kai again.

Kai gritted his teeth: "Okay, I'll start explaining to you the opening essentials of the third 'birth gate'..."