Reborn as Kakashi: Revising Naruto's History

Reborn as Kakashi, one day left, Naruto, the fourth generation son, is about to graduate. To rewrite the history of Naruto, to save Asuma, Itachi and Jiraiya, but also to save many companions who died in the Ninja World War, the goal is to calm down the troubled times like the first generation of Hokage. By the way, I also need to solve my own single problem... The only thing is to become stronger. Fortunately, I am a genius that is rare in Konoha for a hundred years! I must regain my father's secret technique of white teeth and carry it forward. Sharingan consumes too much mana? Fortunately, Tsunade has excellent medical skills and can freely open and close the Sharingan after treatment. As a young master, I'd better find a Sannin to practice celestial arts... If you are not strong enough, how can you deal with Naruto and Sasuke, the two chakra reincarnations of the Six Paths Sage? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.