Initially, with his talent, creating a new technique would be very difficult. After all, he had already learned Chidori from Kakashi and created an analogue of Chidori Nagashi, which was originally created by Sasuke, based on it, and was well aware of the difficulties of this process.
This is also the reason why he has long studied the Rasengan, but has not improved it in all this time. And of course, the new ninjutsu he wants to develop is an improved version of the Rasengan.
He probably wouldn't have thought about this question before. After all, his talent wasn't that good. He simply used all the canon knowledge he had to get to where he was now. But he clearly lacked the computing capabilities of his own brain.
But now, thanks to the new feature of the system, he can try to develop a new technique.
To use this function, you only need to load the ninjutsu principles you want to learn, the process of forming seals, etc. into the system, and you can directly master a particular technique. And this function can also be used when developing new techniques.
Naoki can gradually load the principles of each step of a new technique into the system, and the cultivation function itself will simplify all these steps, allowing him to directly master each stage individually.
In other words, this feature is like a supercomputer, allowing Naoki to save a lot of time on training and get everything right in one step!
…
In the valley…
Naoki tried to upload the principles of an improved version of the Rasengan into the system.
The first step is to add the lightning attribute to it.
The system quickly gave an answer. The information that he had completely mastered a new technique came to his mind: Raiton: Rasenshuriken.
Naoki raised his hand, and a huge amount of chakra gathered in his palm, while adding the attribute of lightning to it. In an instant, the originally blue ball of chakra emitted a blinding white light. Blades appeared around the ball, resembling a rotating shuriken, the technique hummed like a transformer, and constantly emitted a sound similar to the chirping of birds.
An aura so terrifying that even Naoki himself felt his heartbeat quicken was spreading from the center of the technique.
Raiton: Rasenshuriken ready!
He didn't expect the process to be so simple!
Naoki was pleasantly surprised.
The new cultivation feature is truly incredible!
Taking a deep breath, he suddenly threw it towards the forest in front of him. The equipment flew tens of meters in the blink of an eye, making a terrible roar, and landed in the forest.
The moment the ball touched the ground, Naoki's expression changed dramatically and he quickly retreated tens of meters back. The next moment, a loud bang was heard.
A blinding explosion suddenly erupted in the forest!
The energy of the white lightning instantly engulfed all the trees, big and small, and everything in the area was immersed in the blinding light of white lightning.
Bzz...
The furious power of the lightning was countless times stronger than that of a normal Chidori. It was like the arrival of the Thunder God. Everything within a hundred meter radius in the valley was destroyed by the energy of this white lightning!
When the light dissipated, a circular hole a good hundred meters in diameter appeared before Naoki's eyes. It looked as if someone had dug out a piece of earth with a huge bowl, revealing charred and melted pieces of rock.
Naoki looked at the scene in shock, completely amazed by the power of this technique. After all, if a normal Rasengan were to fall to the ground, it would create a hole no larger than ten meters, which was already unbelievable.
And now before his eyes there was a huge hole a hundred meters in diameter, the power of the technique was simply incredible!
Perhaps the destructive power of this technique will be higher than that of Naruto's original technique!
After all, the striking power of lightning surpasses that of wind. Combined with the extreme shapeshifting of the Rasengan, this technique should probably be considered the most powerful in the context of the Rasenshuriken, other elements would not produce such a result.
Of course, it cannot be compared to other, more powerful variations of Rasenshuriken such as: Lava-element Rasenshuriken, or Super Tailed Beast Rasenshuriken.
However, at this time, Naoki felt that the chakra in his body had reached the bottom, and he was simply speechless. The chakra consumption for this technique is much greater than expected.
After activating the system, his chakra level was already quite high even among the elite jonin, but he didn't expect that he would be able to use only one Raiton: Rasenshuriken.
If he hadn't had this new feature, he probably wouldn't have been able to master this technique.
However, the cultivation function can directly eliminate the training process and achieve the most ideal and perfect results. If he trained this technique in the old way, he would probably fail countless times.
"Wow, the cultivation function really does produce exceptional and perfect results. I can already use this technique without the Sage Mode as a base. This is simply unbelievable!" Naoki thought to himself.