Reiko.
From now on, my name is Hatake Reiko.
…
What... Did you see it?
But that "Natsume Reiko" is already dead. I am "Hatake Reiko". As someone who grew up with me, don't you know it best?
…
I am very satisfied to meet gentle humans like you in this life, so please, Itachi, Kakashi, please live well.
The entire article has been completely changed, so it can be considered a comprehensive manga... It's Reiko's grandmother (Natsume's Book of Friends) who time travels to Naruto. Although Natsume's world view is very different from Naruto's, I really like Reiko's character and person... So I will give myself a challenge.