Warning: The following contains spoilers from the Egghead arc in the One Piece manga.Monkey D. Luffy's goal is to become King of the Pirates, following in the footsteps of Gol D. Roger, who was executed by the orders of the World Government. However, prior to his death, Roger challenges the world to find his greatest treasure, the titular One Piece. While no one knows what the One Piece truly is, it is something of great value. The confirmation that Roger's treasure is out there for the taking is enough to get countless people excited about the opportunity to find the One Piece, thus ushering in a new age of piracy.