One Piece Episode 820
Episode 820 adapts chapters 852–853.
Sanji is Back - Luffy’s Great Flat-out Run Counterattack · Whole Cake Island arc
Anime
- Episode 820Sanji is Back - Luffy’s Great Flat-out Run Counterattack
Manga chapters
One Pace
- Germa's FailureCovers chapters 851–852
- Not HereCovers chapters 853–854
The details
Episode 820 adapts chapters 852–853. 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.