The second season of the One Piece anime series was directed by Kōnosuke Uda and produced by Toei Animation. It contains a single story arc, called "Gurando Rain Totsunyū", which adapts Eiichiro Oda's One Piece manga from shortly after the beginning of the 12th through the beginning of the 15th volumes over 15 episodes, following the first adventures of Monkey D. Luffy's Straw Hat Pirates in a fic... Wikipedia