Zoro officially found out in the Elbaf arc that he has access to Conqueror's Haki. Gaban was quite to point it out to him, ...

As things stand, Luffy isn't strong enough to do that, but it looks like he's on the cusp of achieving a newer power which ...

At the moment, the Straw Hat that needs Haki the most in One Piece is none other than Nico Robin. This is largely down to her ...

Luffy still has a far way ahead when it comes to his haki mastery. These One Piece characters outclass him in terms of Haki.