Uchiha Itachi devoted himself to teaching Sasuke how to use Chidori. Though this somewhat violated protocol, even if Kakashi found out, he probably would not say much.
After all, Itachi was one of his favored students, and Sasuke seemed to be one of the more gifted children of the Uchiha Clan.
Moreover, just as Uchiha Itachi had said, Chidori was best suited for use by the Uchiha Clan.
However, there was one prerequisite: the user had to have awakened the Sharingan.
Sasuke had not awakened his Sharingan, so strictly speaking, this technique was not particularly practical for him. But no one believed that this imp would be unable to awaken the Sharingan.
Uchiha Kei did not know much about these matters. If he had known, he might have supported it.
Kakashi had not been particularly diligent in developing Chidori. Perhaps it was because his combat style had already taken shape, and his development efforts were entirely focused on combining it with Sword Techniques.
Still, he remembered to continually hand over the new Chidori-derived techniques he developed to complement Sword Techniques to Uchiha Kei.
But unfortunately, Storm Cutter was already more or less enough for Uchiha Kei.
If Sasuke were to conduct a new generation of Chidori development, simply modifying the technique itself, Uchiha Kei would definitely be strongly in favor.
But he knew nothing about any of this. Aside from developing Rinnegan Chakra Mode, he had nearly forgotten that he still had another task.
That was to thoroughly study the development of his own Dojutsu. In particular, he had once formed a certain concept and very much hoped to bring it to fruition.
"Say, what do you need scrolls that can seal techniques for?" In the underground laboratory, Imai Kenta looked at Uchiha Kei curiously. "You should know these things