Naruto: Sasuke Awakens Tobirama's Memories on the Night of the Uchiha Massacre

After gaining a lifetime of Tobirama Senju's memories at the age of seven, Sasuke Uchiha does not become the Second Hokage, nor can he use sheer power to steamroll the shinobi world. With limited chakra, an identity adults overlook, and an understanding of Konoha's institutions, he must first stop the massacre of his clan, then investigate who turned the unresolved tensions left over from Konoha's founding into an inevitable war.

The real question of this story is not "Can Sasuke become another Tobirama?" but "Having learned all the previous generation's mistakes, can Sasuke still become himself?"