"Search for the Wind") performed by Yaguchi Mari with Straw Hat. The second opening theme, starting from episode 426 onwards, is "Kaze o Sagashite" ( 風をさがして, lit. The first opening theme, titled "Share the World" by TVXQ continues to be used for the beginning of the season. The season used two pieces of theme music. The last two DVD compilations were released on September 6, 2011. The season was released through DVD compilations the first two were released on June 1, 2011.
This season's beginning was announced in the One Piece Movie 10 Guide Book, "One Piece-Pia".
The season began broadcasting on Fuji Television on Octoand ended on June 20, 2010, totaling 35 episodes. Following this arc, the Impel Down story line continues where it had left off. This arc features Luffy and his crew's run-in with a group of pirates hired by Shiki, the film's main antagonist. There is also a 4 episode arc set outside the current continuity titled "A Gold Lion's Ambition" (金獅子の野望 Kinjishi no Yabō), which serves as a prologue to the concurrently released One Piece Film: Strong World. Luffy meets several old enemies from his past in this arc, including Buggy the Clown, Mr. Ace and Luffy's attempt to infiltrate the great prison Impel Down to save him. It deals with the imprisonment of Luffy's brother Portgas D. The thirteenth season of the One Piece anime series titled "Impel Down" ( インペルダウン, Inperu Daun), was produced by Toei Animation, and directed by Hiroaki Miyamoto based on Eiichiro Oda's manga by the same name.