One Piece: Episode of Sorajima
English name: One Piece: Episode of Skypiea
Genres: Action, Adventure, Fantasy
Type: Special, Episodes: 1
Aired: Aug 25, 2018
Studio: Toei Animation
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
The special will be the first in the "Episode of" series to cover the Skypeia arc, and will feature a character who did not appear in the original Skypeia arc from the anime.

(Source: ANN)