One Piece has had previous “Episode of” specials, such as: One Piece Episode of Nami: Kōkaishi no Namida to Nakama no Kizuna (2012), One Piece Episode of Luffy: Hand Island no Bōken (2012), One Piece Episode of Merry: Mō Hitori no Nakama no Monogatari (2013), One Piece “3D2Y” Ace no Shi wo Koete!
Luffy Nakama to no Chikai (2014), One Piece Episode of Sabo (2015), and One Piece Episode of East Blue: Luffy to 4-nin no Nakama no Daibōken (2017).
The staff of the One Piece: Episode of Sorajima (Skypeia) anime special announced the guest cast and lead staff members on Monday.
Yūsuke Isouchi is the chief animation director, and Yoshito Watanabe (One Piece Episode of East Blue: Luffy to 4-nin no Nakama no Daibōken) is the art director.