One Piece: Luffy Senpai Ouen Kikaku! Barto no Himitsu no Heya! 6.26
Other Name: One Piece: Barto no Himitsu no Heya!, One Piece Episode 1004.5, One Piece Episode 1015.5, One Piece Special Episodes: Barto's Secret Room, バルトの秘密の部屋!
Summary: Bartolomeo and Otama look back on Luffy and the Straw Hat Crew's adventures in the Land of Wano. Otama tells Bartolomeo about her meeting with Luffy, and the events leading up to the fierce battle with Kaido.