One Piece Green: Secret Pieces

One Piece Green: Secret Pieces is the fourth Databook.

Content
Contents include:


 * Names and sketches of Whitebeard's Allies.
 * Holds the combined full stories from the cover story arcs.
 * Reveals sections of Oda's sketchbook and early One Piece.
 * Origins of characters' naming.
 * A few Mugiwara Theatre stories.