Episode One Piece Wiki -

: The wiki marks episodes as "Filler" (anime-original content) or "Canon" (based on the manga). This allows you to skip non-essential episodes if you want to catch up faster.

"Episode ∞: The Final Episode. The One Piece is not a treasure. It is the wiki itself. Every theory, every deleted scene, every fan’s memory of an episode that never was. Luffy reaches the last island and finds a single screen. On it, a message from the author: 'The story ends when you stop adding to it.' Then the screen asks: 'Do you want to delete Episode One?' Yes / No." episode one piece wiki

: Every episode page lists the Manga Chapters it covers. This is helpful if you want to switch between reading and watching. : The wiki marks episodes as "Filler" (anime-original

The next morning, Kaito logged back into the Episode One Piece Wiki. A new entry had appeared at the top, timestamped from the future. It read: The One Piece is not a treasure

Officially, it doesn’t exist. Between Luffy’s fight with Katakuri and the escape from Whole Cake, there is a blank space. Fans argue it’s a pacing error. But the Episode One Piece Wiki had an entry:

: Introduces Monkey D. Luffy as he encounters Alvida’s pirates and meets his first companion, Koby. It adapts Manga Chapter 2 (though the manga starts with Luffy's childhood in Chapter 1, which the anime covers later). ⚡ Quick Tip for New Viewers