"As a child, Monkey D. Luffy dreamed of becoming King of the Pirates. But his life changed when he accidentally gained the power to stretch like rubber ... at the cost of never being able to swim again! Years, later, Luffy sets off in search of the 'One Piece', said to be the greatest treasure in the world ... Kaido is already the strongest creature in the world--and he's about to form an alliance that would make his Animal Kingdom pirates even more powerful!! Meanwhile, Luffy and the Straw Hats continue to recruit members to their side. But unbeknownst to them, the balance of power in the world is beginning to change ..."-- Provided by publisher