One Pace — Whole Cake Island 23

One Pace Whole Cake Island episode 23 ("HAPPY BIRTHDAY") covers manga chapters 867–868.

HAPPY BIRTHDAY

One Pace

Whole Cake Island 23HAPPY BIRTHDAY

Manga chapters

Chapter 867
Chapter 868

Source anime episodes

Episode 837
Episode 838
Episode 839
Episode 885

What One Pace is

One Pace is a fan project that re-edits the Toei anime to match the manga's pacing. It cuts filler, recaps, and stretched scenes, so a single One Pace episode usually covers the same ground as several broadcast episodes — here, chapters 867–868 re-cut from anime episodes 837, 838, 839, 885.