Sanji not having learned Rankyaku is one of the most disappointing things in One Piece : r/OnePiece

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I don't think there should be a sequel series to One Piece but I feel

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Tropes Q to S / One Piece - TV Tropes

Tropes Q to S / One Piece - TV Tropes

Oda not allowing Sanji-Zoro to learn Rankyaku-Geppou, a good