Often referred to as "filler", One Piece wasn't the only shonen series that created unique characters and locations that never appeared in their preliminary manga series. Some of the best examples of this include Dragon Ball,

Netflix’s live-action adaptation of One Piece premiered on August 31, 2023, and took the world by storm. Its success led to the announcement that the series would receive Season 2, which is currently in production.

Netflix's One Piece Season 2 is in production, adapting key arcs, and adding new characters. Nico Robin was cast for Season 2, an essential character with a potential major role. Netflix's live-action series plans for longevity, hints at the potential of three seasons or more.