Chapter 0, One Piece Wiki

Chapter 0 is called "Strong World". It is a special chapter released alongside Chapter 565 and included in Volume 0. It introduces the events 20–25 years before Monkey D. Luffy began his adventure, and the story of Shiki for the 10th One Piece Film: Strong World. Color Spread: Straw Hats (minus Nami) dressed in formal black clothes, wielding various guns and ready for action. Three years before the beginning of the Golden Age of Piracy, word arrives at Marineford that Shiki and the Roger Pirates

Chapter 976, One Piece Wiki

Chapter 1052, One Piece Wiki

The LEGENDARY Chapter - One Piece CHAPTER 0 EXPLAINED

One Piece (season 14) - Wikipedia

One Piece Film Strong World: Episode 0, One Piece Wiki

Chin Piece, One Piece Wiki

Chapter 1045, One Piece Wiki

Volume 4, One Piece Wiki

Chapter 1097, One Piece Wiki

One Piece - Wikipedia

Chapter 525, One Piece Wiki

East Blue Saga, One Piece Wiki

Chapter 0, One Piece Wiki