Konoha: Son of the Fourth Hokage

Novel Summary
Minato and Kushina: “Happy Birthday! Make a wish!”
Naruto: “I hope my mother will give me a brother.”
Kushina: “Huh???”
Minato: “Why not have a younger brother?”
Naruto: “Because if it were my elder brother, I would be as gentle and powerful as Big Brother Itachi, and if it were my younger brother, I would definitely be as stupid as Sasuke.”
…
What kind of changes will the traveler Ren Ming become Naruto bring to the Naruto world?
– Description from readMTL