The setting of this article is that the Fourth Ninja War broke out when Naruto and Sasuke were seventeen years old. After the decisive battle between the two, Sasuke disappeared.
The background is that five years after the end of the Fourth Ninja War, Naruto accidentally met someone who seemed to know Sasuke, and the plot began.
There are original characters, so enter with caution.
PS: Another thing to note is that because Itachi had already received a bento before the decisive battle with Narusa, this article assumes that Itachi was not reincarnated by Yakushi Kabuto, so Sasuke did not see him again after Itachi's death. Therefore, in this article Itachi only appears in Sasuke's memories, and there is no direct interaction between Itachi and Sasuke.
Conception: