One Piece is ... A story about pirates seeking the "One Piece" treasure of wealth, fame, and power, which is said to have been left behind by Goal D. Roger, the pirate king of the past. If you get it, you've got everything in the world. The great route ("Grand Line") goes around the planet and can be entered only from one entrance. And it seems that there is the treasure at the end of one round of the planet. From the 61st volume, the story entered into the new world part of the second half of the grand line. This is a monumental work of boy manga that collects battles, excitements, and enthusiasms. This is the most sold manga in Japan and the world's most sold manga as a single author. 380 million copies sold. It sells 2.27 million copies in one week. Serialized since 1997. Currently 93 volumes. TV animation has been on air since 1999. Released in 1996.