One Piece (dub) Episode 130 -

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.

By the end of the episode, the Straw Hats officially gain their seventh member, setting the stage for the upcoming mysteries of the Poneglyphs and the Sky Island Saga. You can find more detailed breakdowns of this transition on the One Piece Wiki . 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. Unlike her previous cold demeanor, Robin approaches the

Robin wins over Nami by offering her a pouch of jewels she took from Baroque Works. You can find more detailed breakdowns of this

Sanji is instantly won over by her beauty and grace.