Naruto could develop a sense of guilt and isolation. Since Itachi was a well - known figure, Naruto might face criticism or be shunned by some for killing him. This would force him to re - evaluate his relationships and his place in the ninja world. He might have to struggle to prove that his actions were for the greater good and find new allies who understand his motives.
If it's an official novel related to a well - known series like Naruto where Itachi is from, it would be written by the authors associated with the Naruto franchise. However, if it's a fan - fiction 'itachi novel', then the author could be anyone from the vast community of fan - fiction writers. There are many fans who create their own stories based on their love for the character Itachi.
Sasuke is often paired with Itachi in these fanfictions. Since they are brothers, when Itachi time - travels, his interactions with Sasuke are crucial. Sasuke might be at a different stage in his life, and Itachi could try to influence his development. Another common character is Naruto. Naruto's ideals of friendship and peace could contrast with Itachi's more complex and tragic view. Their interactions could lead to interesting plot developments.
It's a complex situation. Different storylines and villains have targeted the Avengers, but no one specific character can be said to have killed them all outright.
Kang's demise in comics is a complex matter. It could be a result of a team-up of heroes, or it might be due to an unexpected turn of events involving multiple characters and their actions.