Item from One Piece by Eiichiro Oda
The legendary treasure left by Gol D. Roger at Laugh Tale. The goal of every pirate in the Great Pirate Era. What it actually IS remains the greatest mystery in the world — Roger's crew laughed when they found it.
The One Piece is the engine that drives the entire world. Roger's final words — 'My treasure? If you want it, you can have it. Search for it! I left everything the world has to offer there!' — launched the Great Pirate Era and sent millions to sea. Every major pirate crew, every alliance, every war ultimately connects back to the race to find it. Whitebeard's dying words confirmed its existence. The World Government desperately wants to prevent anyone from reaching it, suggesting the One Piece is tied to the truth of the Void Century — the 800-year gap in history that the World Government has killed to suppress. What makes the One Piece extraordinary isn't just its mystery but its effect: it turned Roger from a dying man into an immortal legend, and it gave Luffy — a rubber boy from a backwater sea — the goal that will reshape the world.
Unknown. No one alive outside the former Roger Pirates knows what the One Piece looks like, and they aren't telling. Whatever it is made Roger and his entire crew laugh — suggesting it's either absurd, ironic, joyful, or all three. Whitebeard confirmed it exists. Roger said the world wasn't ready for it yet. Theories range from a world-changing weapon to the true history of the Void Century to something far simpler and more profound than anyone expects.
Also known as: One Piece, Roger's Treasure, The Great Treasure