The first step in training the Lightning Element Chakra Mode is to train the change of the nature of the Lightning attribute, and master it to a higher level.
Naito was born with the dual attributes of wind and lightning, so it was easy to do this step.
As for training the nature change to a higher stage, it was not difficult for Naito.
After all, Naito's chakra volume had already reached the Jounin level, and he was fully qualified to train chakra nature change, and Naito's control over his chakra was not amazing.
It did not take Naito long to master the higher level of lightning attribute chakra nature change.
At this point, it would not take Naito much effort to even attempt to develop Chidori.
However, the Chidori required hand seals, as did the enhanced version, the Raikiri, so it was not suitable for Naito, and he only trained the lightning attribute so that he could use it to train the Lightning Element Chakra Mode.
The Lightning Element Chakra Mode Jutsu was easier to train than Naito had imagined, perhaps because his body was already incredibly strong, so he could easily withstand lightning stimulation.
And under this training, not only his body strength, but also his nervous system improved, which was reflected in his reaction speed.
And as the training deepened further, the speed of strengthening not only slowed down, but was twice as fast!
If before, Naito's Kenjutsu Kuzure could only launch three shock waves from three directions at the same time, now Naito could do it five times from five different directions!
Of course, these five times were his limit, even if Naito's speed was even faster, the shock power could not exceed the limit five consecutive attacks.
After all, the source of his speed is different from the source of the shock power.
However, the improvement he gained physically made his shock power more powerful.
With a punch stacked with shock power and Brutal Strength, it is no longer difficult to destroy a high-level A-Rank Jutsu.
Now, for Naito, punches with normal shock power had the power to destroy mid-level A-Rank Jutsu.
Once Naito's chakra volume reached the Jounin level, the consumption of Brutal Force Jutsu was already too small.
Training the Lightning Element Chakra Mode granted Naito an improvement in all aspects.
Although the first stage had not yet been completed, Naito was already looking forward to the second stage and possibly the third, considering that he was to make a trip to the Lightning Country.
After a month of training almost half of the first stage, the mission entrusted by Hiruzen finally made Naito unable to continue training.
He had already been tasked with a secret mission of infiltration and assassination, and had postponed it for a while because he had to train in the Lightning Element Chakra Mode Jutsu, but now that the Second Ninja World War was intensifying, he could not postpone it any longer.
Besides, it was not impossible to train even during the mission.
Naito's mission was special, so Naito did not wear his mask and cloak, but dressed as an ordinary civilian from the Rain Country and blended in with the civilian population.
There were several targets for Naito, among them many of Amegakure's Elite Jounins, and even Hanzo of the Salamander was included!
However, Hanzo of the Salamander was simply ignored by Naito, this BOSS was still left for Konoha to defeat, or he could team up with Orochimaru, Jiraiya and Tsunade to fight him later.
Either way, he wouldn't obstruct the team if he joined.
In addition to the Amegakure ninja as Naito's assassination targets, the Jounins of Iwagakure and Sunagakure were also among Naito's targets.
Assassination and espionage were his main targets.
Almost all aspects of the mission were combined into one, and this was the mission of the special division of the Anbu department, but because of this, it was extremely free, and Naito could use any means he wanted to complete the mission.
After some preparations, Naito left the Konoha camp.
In the end, he chose to follow the mission instructions, he would first dress as a civilian from the Rain Country, then infiltrate the Rain Country, and then decide his next move based on information from the Konoha scouts, or by gathering information himself.
Naito wanted to take this opportunity to see if he could get information about the Kusanagi sword that had fallen into the hands of the Sunagakure ninja, and thus find an opportunity to snatch it from him.
...
Shortly after Naito left the camp, a Root ninja entered the camp's underground to deliver this information to Danzo.
For his part, Danzo narrowed his eyes, his gaze was cold, "Did he leave the camp alone, and without mask or cloak...? What is the meaning of this, does he have a secret mission from Hiruzen?"
"To hell with him, why did he even transfer him to the special squad of the Anbu department?"
As the Hokage's advisor, Danzo did not have the authority to mobilize the Anbus of the Anbu department, but he did have the power to see information and intelligence from him.
However, there was a special division within the Anbu department that even he could not access, the number of people in that special division was a mystery at the moment, only their existence was known, but no information could be obtained.
The only two people who knew were Hiruzen and Sakumo.
Since Naito had been transferred to the special division by Hiruzen, all information about Naito was top secret, and it was difficult even for Danzo to know what had happened to Naito.
So, to this day, Danzo was a little confused as to Hiruzen's intentions, and it seemed to him that Naito was not qualified to join that special division.
Even if Naito was very talented, he had not yet grown up.
Perhaps it was an attempt by Hiruzen to protect Naito.
With that thought, Danzo's eyes flashed with a cold glint.
"In that case, then you could give him to me, Hiruzen," After this sentence, Danzo immediately summoned two of his ninjas, "Nara Shika, Kurama Kuraso, you two are the best at controlling ninjas, go and bring Naito to me, make sure he's alive!"
"Yes!", the two nodded towards Danzo, then Nara Shika placed Kurama Kuraso on his back and they left immediately.
Watching them leave, Danzo shook his head slightly and said, "Kurama Kuraso has a serious problem with his body, even with Orochimaru's help, we couldn't discover his illness."
'It's really a pity that we lost a man from the Yamanaka Clan lately, otherwise, it would have been better to send him with Shika, I'll have to recruit someone from the Yamanaka Clan soon', Thinking about this, Danzo thought about Naito again, this was a battlefield anyway, it was normal for some ninja to die.
And by the time Naito was under his control, he could have Naito infiltrate the special division of the Anbu department.
Together with his special and almost perfect Kekkei Genkai, Naito could become the best tool in their hands.