Every Jutsu has a Weakness

Naruto was not born with insane stamina and chakra like in canon. Minato's and Kushina's actual son dies, so the Kyuubi is sealed in a civilian child, who they name Naruto to honor their dead son. Naruto creates his own advantages and follows Itachi's mantra to defeat his enemies. Smart!Naruto. NotOP!Naruto. Manipulative!Naruto. Scientist!Naruto. Pairing: NaruIno, SasuSaku NO HAREM