The "Cat Burglar" Nami is the navigator of the Straw Hat Pirates. She was the third member of the crew and the second to join, doing so during the Orange Town Arc. She is the adoptive sister of Nojiko, as both of them were orphaned and taken in by Bell-mère. She was formerly a member of the Arlong Pirates and initially joined the Straw Hats with the intention of stealing from them but indeed became one of the Straw Hats after they rebelled and defeated Arlong.