Release: 2021
Status: Completed
Type: Special
Genres: Action, Adventure, Comedy, Fantasy
Other Name: One Piece Special Episode: Barto's Secret Room, ルフィ先輩応援企画! バルトの秘密の部屋!
Total Episodes: 4
Synopsis: 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.