Late at night, inside the Fortress in the Sky.

"Whew... Whew..."

Hinata was half-kneeling on the ground, her chest rising and falling, panting violently.

Large drops of sweat ran from his forehead all the way down his cheeks, and finally dripped onto the stone bricks on the ground, causing a puddle of obvious water stains on the ground.

After a long pause, Hinata recovered and gritted her teeth again and stood up.

Although he had long expected that the development of 'Yan Dun' would not be too easy, after the actual operation, he found that the development of 'Yan Dun' was far more difficult than he imagined.

Among them, the most troublesome point is that he has to turn on the 'Susanohu', and with the help of the golden flame in the 'Susanenghu' state, he can barely touch the threshold of the change in the nature of the 'Yan Escape'.

In other words, if you want to practice the change in the nature of 'Yan Dun', you must maintain the state of 'Susa Nenghu' for a long time.

Even if you have an eternal kaleidoscope writing wheel eye that can restore your pupil power, maintaining 'Susanohu' for a long time is a very heavy burden for the helioscope.

After all, this pair of eternal kaleidoscope writing wheel eyes are Uchiha Ryota's, although the fire escape clone has the blood of the Uchiha clan, but these eyes are not the eyes of the fire escape clone itself after all, in terms of fit, and the chakra consumption of the pupil technique, the fire escape clone is undoubtedly more difficult to cast than the original owner of Uchiha Ryota.

After wiping the sweat from his face, Hinata once again opened the Eternal Kaleidoscope Sharingan and activated 'Susanoo'.

After many exercises, he also figured out some tips for saving chakras when practicing 'Yan Dun', for example, at this moment, he only activated the mutilated version of 'Susanoh', so only a few phantoms of golden ribs shrouded his body, not a complete golden giant.

The helioscope slowed down the speed of the seal, and slowly sealed it at a rate of one seal per second.

The reason why he did this was because during the exercises, he found that it was very difficult to fuse the properties of the fire attribute chakra and the thunder attribute chakra, and the chakras of these two attributes were unstable in their states, and it was extremely difficult to fuse these two unstable chakras together to produce a change in nature.

What's more, in this process, the Hyuga Mirror also needs to use the golden flame on the 'Susanohhu' as the medium, and at the same time inject the pupil power of the Eternal Kaleidoscope Writing Wheel Eye, so the Hyuga Mirror must slow down the speed of the seal, in order to barely complete the fusion of the chakra of two different attributes, as well as the perfect injection of the pupil power of the Writing Wheel Eye.

From this alone, it can be seen that there is still a clear gap between the Hyuga Mirror and those real geniuses in terms of Chakra's control.

After completing the sealing of the seventeen seals, Hinata Mirror shouted in a low voice: "Yan Dun, Yan Dragon Technique!" ”

Crash...

In an instant, a golden fire dragon erupted from the mouth of the Hyuga Mirror and hovered over the training room, reflecting the entire practice room as if it were daytime.

The flame escape ninjutsu performed by the Hyuga Mirror was developed by him by copying the C-level fire escape ninjutsu 'Dragon Fire Technique', but because it was necessary to inject the thunder attribute chakra and the pupil power of the eternal kaleidoscope writing wheel eye, it evolved from the four seals of the 'Dragon Fire Technique' to the seventeen seals at this time, but if you put some thought into it, the Hyuga Mirror is confident that the number of knot seals will be compressed to less than ten.

Of course, none of this is the crux of the matter.

The real key is that the Hyuga Mirror must be in a state of 'Susanoo' in order to complete the change of nature and unleash the golden flame that represents his own 'Yan Escape'.

However, in the state of 'Susa Nenghu', he can also control the golden flame with the pupil power of the Eternal Kaleidoscope Writing Wheel Eye, so the 'Yan Dun' that can only be cast with the help of 'Susa Nenghu' is meaningless, because it shows that his Fire Escape clone has not really mastered the Yan Dun Blood Inheritance Limit at all.

This situation is like the Yin Escape Buddha of the Hyuga Mirror, which can use the Reincarnation Eye Chakra Pattern to condense the Dao Seeking Jade, but his Yin Escape Buddha is not a real six-realm level, nor does he have the physical strength and spiritual strength of the six-realm level.

"Why can Sasuke use 'Flame Escape' under normal conditions, but I can't?"

Staring at the golden flame dragon still hovering overhead, Hinata frowned.

In the ninja world, there is actually nothing exclusive, as long as the necessary conditions are met, any ninjutsu can be activated, so Hyuga Mirror carefully thought about himself at this moment, what is worse than Sasuke when he developed 'Yan Escape'.

"Is it the fusion of the nature of my two different attributes chakra, and it's not done perfectly? Or is my current pupil power not as good as Sasuke at that time? ”

After pondering for a moment, Hinata Mirror secretly had a guess.

In terms of the fusion of the nature of the fire attribute chakra and the thunder attribute chakra, Hyuga Mirror felt that although he was not perfect, he could be regarded as decent, so the problem should not be in this aspect.

Then the problem should lie in the pupil force.

By the time he developed the 'Flame Escape', Sasuke already had the Eternal Kaleidoscope Writing Wheel Eyes, and these eyes were obtained by fusing the Kaleidoscope Writing Wheel Eyes of his blood relative, Uchiha Itachi, and they were eyes that perfectly matched his body and soul. In addition, he still had Indra's chakra in his body, so his pupil power was already very strong at that time, and it can be said that at that time, he was second only to the Uchiha Madara of the Six Realms of the Uchiha Clan.

Therefore, the pupil power of the Hyuga Mirror Fire Escape clone at this time should not be as good as Sasuke's pupil power at that time.

The improvement of pupil power is either to awaken the eyes of a higher form, or through a long period of time, little by little accumulation, or as the six immortals in the original time and space directly instilled the 'yin power' that represents the spiritual power of the six realms to Sasuke, so that Sasuke directly opened a magatama reincarnation eye in an instant.

Other than that, there is basically no other way.

And the Eternal Kaleidoscope Writing Wheel Eye in the eye socket of the Hyuga Mirror Fire Escape Clone is already the highest form of the Writing Wheel Eye, and if you want to improve your pupil power by continuing to evolve, you can only evolve the Reincarnation Eye by absorbing the power of the immortal body of the Thousand Hands Clan.

But the evolution of the reincarnation eye is by no means as simple as the eternal kaleidoscope writing wheel eye and the power of the immortal body of the thousand-handed clan.

You must know that Madara Uchiha, who has Indra Chakra and an eternal kaleidoscope writing wheel, after the Battle of the Valley of the End, faked his death and obtained the first generation of cells, but after decades of accumulation, he was able to evolve the reincarnation eye before the temporary.

It can be seen that the Eternal Kaleidoscope Writing Wheel Eye and the Immortal Human Body are just the lowest threshold for the evolution of the Reincarnation Eye, if you think that as long as you have a pair of Eternal Kaleidoscope Writing Wheel Eyes, you can easily get the Reincarnation Eye, it is undoubtedly too naïve...