One Piece Chapter 840 – Iron Mask

One Piece is a legendary manga series created by Eiichiro Oda. It follows the adventure of Monkey D. Luffy, a young pirate with rubber powers, who dreams of becoming the Pirate King by finding the ultimate treasure known as “One Piece.”

Along his journey, Luffy forms the Straw Hat Pirates, a crew of unique and powerful companions. Together, they sail across the dangerous Grand Line, facing strong enemies, uncovering hidden secrets, and exploring a vast world full of mystery and adventure.

Known for its epic storytelling, emotional moments, and unforgettable characters, One Piece is one of the most popular manga series of all time, with millions of fans worldwide.