The answer
To the Thousand Sunny after escaping Whole Cake Island. Sanji rejoins the Straw Hat crew as the crew spots him carrying Luffy toward the ship and erupts in relief.
Ch. 898, p. 13open pagesettled: yes
Key facts
- First raised
- Ch. 813
- Status
- Settled · Ch. 898
Evidence timeline
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How we know
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. 813- 898We'll Definitely ReturnSettles it
- 813The Tea Party InvitationZou
- 843Vinsmoke SanjiWhole Cake Island