One Piece has had previous “Episode of” specials, such as: One Piece Episode of Luffy: Hand Island no Bōken (2012), One Piece Episode of Nami: Kōkaishi no Namida to Nakama no Kizuna (2012), One Piece Episode of Merry: Mō Hitori no Nakama no Monogatari (2013), and One Piece Episode of Sabo (2015).
The previous One Piece anime special, One Piece: Heart of Gold, aired in July 2016.
The official website of the One Piece franchise began streaming a long promotional video on Saturday for the One Piece Episode of East Blue: Luffy to 4-nin no Nakama no Daibōken (Luffy and His 4 Crewmates’ Big Adventure) two-hour television special.
The special tied into last year’s One Piece Film Gold movie.