One Piece Encyclopedia

One Piece

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For other uses of this name, see One Piece (Disambiguation).

One Piece (ひとつなぎの大秘宝(ワンピース) Wan Pīsu?, kanji read as "Hitotsunagi no Daihihō", translating to "The Great Treasure of One Piece") is a legendary treasure said to be of unimaginable value.

It is said that it was hidden somewhere deep in the Grand Line, presumably on the last island, Raftel, by its deceased owner, the Pirate King Gol D. Roger. Before Pirate King Gol D. Roger was executed, he announced to the world that his great treasure, One Piece, can be claimed by anyone worthy enough to reach it, thus starting the "Pirate Era".

The Mystery of the Great TreasureEdit

Aside from the Roger Pirates and Whitebeard (before his death), no one actually knows where the great treasure is.

Given the recurring theme of treasure being something of great personal value (for example Luffy's hat), One Piece may simply be an item that Gol D. Roger valued. In Buggy's flashback to his days as a member of the Roger Pirates, he discussed with Shanks the meaning of a treasure, and he found that all the crew shared the same views regarding personal value.[1]

The closest the Straw Hat Pirates have ever come to finding out the nature of One Piece was during the Sabaody Archipelago Arc when Usopp tried to ask Silvers Rayleigh about it. However, Luffy stopped Usopp from discussing the treasure on the grounds that it would defeat the purpose of their adventures, and that becoming the Pirate King would have little merit if he already knew about the One Piece.[2]

After constant speculations and doubts, the existence of the treasure was confirmed by Whitebeard with his last breath. He mentioned that "a grand battle will engulf the entire world" and "the world will be shaken to its core" when One Piece is found.[3]


  • In the opening Jungle P, there is a clip where the Straw Hat Pirates sit near a pile of treasure, and one of the treasures has the words "One Piece" written on it.
  • In the 4th opening, BON VOYAGE!, Luffy states that "there is a treasure at the end of the sea and anyone who finds it becomes the king of the pirates".
  • In Episode 452, after the Marines mention that Buggy was part of the Roger Pirates, Buggy has the idea to defeat Whitebeard and become the Pirate King. He is then standing atop a pile of treasure.


  1. One Piece Manga and Anime — Vol. 3 Chapter 19 (p. 8) and Episode 8, Buggy's flashback about a discussion concerning a treasure.
  2. One Piece Manga and Anime — Vol. 52 Chapter 507 (p. 7-8) and Episode 400, Usopp asks Rayleigh for One Piece's location.
  3. One Piece Manga and Anime — Vol. 59 Chapter 576 (p. 13-14) and Episode 485, Newgate confirms that One Piece exists.

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Roger Pirates
Members: Gol D. Roger   •  Silvers Rayleigh  •  Crocus  •  Shanks  •  Buggy  •  Scopper Gaban  •  Seagull
Ship(s): Oro Jackson
Devil Fruit Based: Bara Bara no Mi
Fighting Style Based: Haki
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Story Arc(s): Romance Dawn Arc  •  Loguetown Arc  •  Drum Island Arc  •  Skypiea Arc  •  Water 7 Arc  •  Post-Enies Lobby Arc  •  Sabaody Archipelago Arc  •  Marineford Arc  •  Post-War Arc
Associated People: Edward Newgate  •  Shiki  •  Tom  •  Monkey D. Garp  •  Portgas D. Ace  •  Portgas D. Rouge
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