One Pace — Whole Cake Island 1

One Pace Whole Cake Island episode 1 ("A World Abuzz") covers manga chapters 823–824.

A World Abuzz

One Pace

Whole Cake Island 1A World Abuzz

Manga chapters

Chapter 823
Chapter 824

Source anime episodes

Episode 777
Episode 778
Episode 779
Episode 783

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 823–824 re-cut from anime episodes 777, 778, 779, 783.