One Piece Episode 400
Episode 400 adapts chapters 506–507.
Roger and Rayleigh - The Pirate King and His Right Hand · Sabaody Archipelago arc
Anime
- Episode 400Roger and Rayleigh - The Pirate King and His Right Hand
Manga chapters
One Pace
- Roger and RayleighCovers chapters 505–506
- Kizaru ArrivesCovers chapters 507–508
The details
Episode 400 adapts chapters 506–507. Adapting several chapters into one episode is why the anime slowly gains on the manga in raw numbers even while falling further behind in story.