Ace's death has left a lasting mark on the history of One Piece and Luffy's life, but fans seem to believe one important lesson by Shanks could have saved him.

Editor Sugita hints the One Piece is a complex ... but his faith in his dream never wavered, aside from when Ace died. Still, Luffy quickly regained his composure and trained hard with Rayleigh ...

a pirate who was locked away on Level 6 of Impel Down but escaped during Luffy's invasion to save Ace, in order to lure Hancock to him and use her as a hostage against the World Government due to ...