Sanji is instantly won over by her beauty and grace.
In episode 130 of One Piece , titled , the story shifts from the high-stakes battle for Alabasta to an unexpected and pivotal crew expansion. The Great Escape One Piece (Dub) Episode 130
While the crew is initially skeptical, Robin quickly wins them over with her calm intelligence and her powers, which she uses to entertain Chopper and Luffy. Sanji is instantly won over by her beauty and grace
Unlike her previous cold demeanor, Robin approaches the crew with a strange request: she wants to join them. She explains that because Luffy forced her to live during the collapse of the Alubarna Royal Mausoleum—when she had already given up on life—he now has the "responsibility" to take her in. One Piece (Dub) Episode 130