Inaccurate synopsis for One Piece

[TheDreadPirate]

The main thing you need to do is go to Anidb's, or even TMDB's, website to figure out how they organize One Piece.  AniDB tends to organize shows like One Piece as one long season.  TMDB gives you the option of either absolute order, or by season, or by DVD box sets, etc.  Its possible you have your files ordered differently than the default order retrieved from TMDB.  Once you figure out how you have it organized in your storage vs how Jellyfin has it currently organized you can decide which ordering you like (expand menu for your show, edit metadata, "Display Order").

https://www.themoviedb.org/tv/37854?language=en-US