The Straw Hats have come a very long way since they each first started their grand adventure to find the One Piece treasure, but it’s fair to say it’s not all been smooth sailing. There have been several times throughout the story where members of the crew have been forced to develop and grow as characters due to their experiences on a particular island. This applies not only to their physical strength and abilities, which can be enhanced by overcoming grueling battles, but also to their emotional maturity, which has been explored in-depth for many of the Straw Hats through several story arcs.