One Piece

One Piece (glossed in print as ひとつなぎの大秘宝, Hitotsunagi no Daihihō, "The Great Treasure of One Piece", but still pronounced Wanpīsu) is a legendary treasure said to be of unimaginable value. It is said that it was hidden somewhere deep in the Grand Line, probably in the last island Raftel, by its previous owner, the Pirate King Gol D. Roger.

One piece the plot
one piece seems to be copying the great ilias or iliada greek poem written by omiros the man who wrote odissey.In iliada omiros using the feelings and life of achilles describes the war that took place in Troy.In one piece the writter uses the life and adventures of mugiwara no luffy to describe the pirate era, the pirates' ambitions,how the world would be if pirates were to take control of it.He also uses the relationships luffy make to give a moral view against the fights and the blood spilt in each episode.But omiros in his story make his hero choose moral death instead of immoral life so lets see if luffy dies to serve the pirate rights or friends.

The Mystery of the Great Treasure
Nobody seems to know what it really is or what it looks like. Given the recurring theme of treasure being something of great personal value, One Piece may simply be an item that Gol D. Roger valued.

The closest the Straw Hats came to finding it out so far was when Usopp asked Rayleigh what it was. However at that moment was interrupted by Luffy who voiced a disapproval at finding out now what the treasure was, preferring to find out the nature of One Piece by finding the treasure himself.