Luffy and Nami meet when they are younger and both show signs of having haki and at such a young age Shanks then takes Luffy and gets blackmailed into taking Nami to train them for 8 years what will happen who knows, but you'll have to read to find out. OP Luffy/Nami, Serious Luffy, Smarter Luffy LuffyxNami RobinxZoro