In the world of One Piece, one year before Luffy went to sea, the Great Pirate Age was in its most turbulent period.
The story begins on an unnamed island in the East China Sea, and will later expand to the Grand Line and the New World.
This is a world where pirates run rampant and the navy rules. People with Devil Fruit abilities and those with strong physical skills coexist, and all forces fight openly and covertly.