Chapter 0

Chapter 0 is called "Strong World". It is a special chapter released with chapter 565. It introduces the events 20-23 years before the actual ones, and the story of Shiki for the 10th One Piece Movie: Strong World.

Quotes
I am not interested in "domination" Shiki! There is no need to be a pirate if you can't do what you want, right? No matter the pressure, I will never accept "Golden Lion"!!! -Roger, refusing to be Shiki's right hand man in order to dominate the world with him.

Weakest is a point of view... "East Blue" is the symbol of peace! -Garp, replying to Shiki who would not accept Roger to die in the "weakest sea".

Trivia

 * Those who will see the film will have the volume 0 containing this chapter for free.