Roronoa Zoro and Sanji are two of the most important characters in Luffy's journey to becoming the King of the Pirates. Luffy's made his very first recruit at Shell's Town in Roronoa Zoro, where the swordsman was saved from inevitable death after having been imprisoned for quite some time. Swearing his loyalty to Luffy after being saved, Zoro has, since then, devoted himself to making him the Pirate King and is an incredibly important part of the Straw Hat Pirates.