Roronoa Zoro is the resident swordsman of One Piece's Straw Hat Pirates and one of the strongest people on Monkey D. Luffy's crew, second only to the captain himself. Since he was a child, Zoro has aimed to become the strongest swordsman in the world, and as a result, he has made it his goal to defeat Dracule Mihawk — the man who currently holds the title.
Source:https://www.cbr.com/one-piece-blades-roronoa-zoro-wielded-used/