The answer
Chapter 898 · updated
Sanji rejoins the Straw Hat crew upon returning to the Thousand Sunny after escaping Whole Cake Island. In the aftermath of the clash with Big Mom's forces, the crew spots Sanji carrying Luffy toward the ship and erupts in relief with shouts of "They did iiiitttt!!! They've returned!!!" and "Sanji!!!!" ch. 898, p. 13. Earlier scenes establish Sanji's departure from the crew on a tracked vehicle while promising "I PROMISE I'LL BE BACK" ch. 813, p. 16 and leaving a letter stating he would return after handling a personal matter ch. 843, p. 9. The manga depicts his arrival back with the crew on the ship as the moment of reunion following the escape ch. 898, p. 13. No other sources in the provided material describe an earlier or later rejoining event with the full crew.
Where it happens
3 chapters · first raised in ch. 813From the chapter
They did iiiitttt!!! They've returned!!!
Chapter 898, page 13I PROMISE I'LL BE BACK
Chapter 813, page 16TO MY BUDS: THERE'S THIS CHICK I GOTTA SEE REAL QUICK. I'LL BE BACK. I PROMISE. SANJI.
Chapter 843, page 9
What this means for the story
Canon settled the fact. The meaning is still an argument.
Make the case for what the answer changes, and bring the chapters that back you — the same evidence that settled the question can settle this one.
- 01Write the claimOne sentence a reader can agree or disagree with.
- 02Cite the chaptersEvery point carries the page it comes from.
- 03Readers weigh itConfidence moves on the evidence, not on votes.