Gol D. Roger was the strongest and most famous pirate in the world! He was so famous that people called him the "Pirate King." Then one day, the World Government captured him and he died. Before he died, he said something very important. He said there was a secret treasure called One Piece that was the most valuable thing in the world. That made a lot of people want to be pirates and try to find One Piece.
Monkey D. Luffy is a 17-year-old boy who wants to be a pirate. He doesn't want to hurt people, he just wants to have fun and find One Piece. He and his friends travel on a boat across the Grand Line and have lots of adventures. They meet interesting people, fight dangerous enemies and try to find the secret treasure before anyone else does.