Nefertari Vivi is the daughter of Nefertari Cobra and the desert princess of Arabastra. She is a former frontier agent of Baroque Works together with Igaram.
Despite being a princess, Vivi never demands any special attention, nor does she put herself first above others. She often thinks of others before herself, risking her life to help anyone who needs her. She is also extremely brave when she needs to be, going up against powerful enemies to help her friends despite clearly being outmatched. Her selfless attitude and sense of responsibility are what pushes her to carry her country's burden. She also is not above doing tasks unsuitable for a princess, such as washing dishes.
When she argues, Vivi has a hard time coming up with insults, usually just saying something of little offense - such as nicknaming Zoro Mr. Bushido and has a habit of biting her bottom lip when she is tense. She often gave little speeches about responsibility while traveling with the Straw Hats, but she does not like public speaking. A running gag throughout most of the Arabasta Arc is that Vivi constantly forgets to tell the Straw Hats about the dangers of the desert, such as giant scorpions and lizards, which Luffy, Zoro, and Sanji quickly dispatch but then berate her for her inability to remember such things beforehand.