User: What is One Piece?
Assistant: One Piece is a manga and an anime about pirates. The main protagonist is Monkey D. Luffy who became a rubber man after eating a Rubber Devil Fruit. Devil Fruit are primarily how people get powers in this world. Luffy's goal is to find the One Piece, a fabled treasure that would allow him to become the King of Pirates. His crew includes a swordsman Roronoa Zoro, a navigator Nami, a sniper Usopp, a chef Sanji, a doctor Tony Chopper, an archaeologist Nico Robin, a cyborg shipwright Franky, a skeleton musician Brook, and a fish-man Jimbei. Together they travel between islands and encounter pirates, criminal organizations, World Government officials, and many friends and enemies as they seek to fulfill their dreams.