One Pace — Whole Cake Island 18

One Pace Whole Cake Island episode 18 ("Rook") covers manga chapters 857–858.

Rook

One Pace

Whole Cake Island 18Rook

Manga chapters

Chapter 857
Chapter 858

Source anime episodes

Episode 826
Episode 827
Episode 828

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 857–858 re-cut from anime episodes 826–828.