Nami

"Cat Burglar" Nami is the navigator of the Straw Hat Pirates. She is 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 after the two were orphaned and taken in by Bell-mère. She was formerly a member of the Arlong Pirates and initially joined the Straw Hats so she can rob them for her real crew in order to buy back her village from Arlong, but she joined the Straw Hats for real after they rebelled against and defeated Arlong. Her dream is to make a map of the entire world. She currently has a bounty of Beli66,000,000. Being the assigned navigator of the Straw Hat Pirates, Nami is responsible for evaluating the direction that the ship goes as they sail further into the sea. Nami also tends to act as the crew's de facto treasurer, managing the crew's money and allocating spending money whenever they arrive at a new location. Besides Sanji, the crew's trained chef, Nami is also the only crew member known to possess even basic cooking knowledge (likely learned from Bell-mère). Prior to Sanji joining the crew, Nami agreed to cook for a fee, and in his absence, she reprises this role. Initially, she went back to charging money to perform this service, but after Luffy disastrously chooses to cook for the crew in order to avoid paying her most of his allowance, she has agreed to cook free of charge, she was able to cook a delicious fish by following one of Sanji's recipes left behind in the Thousand Sunny. Nami possesses a strong enough will to be able to withstand a burst of Big Mom's Haoshoku Haki.

Nami had spent several years from her tender childhood to her young adult life stealing money from numerous people including dangerous pirates to buy back her village from the Arlong Pirates, these harsh and sometimes brutal experiences grants Nami a very high level of physical capabilities. In the Water 7 Arc, she demonstrated exceptional agility and incredible leg strength, being able to jump the wide distances between rooftops in Water 7. Nami is also physically very strong and fit, and when she is extremely enraged especially from Luffy's reckless spendthrifting, she can pack extremely powerful punches to give vicious beatings, that can cause Luffy who has a tremendously tough durability to have brutal and bloody bruises. (This, however, is mainly a gag for comedy, and not representative of Nami's actual strength)

While on Weatheria, Nami showed she was capable of running extremely quickly while carrying both a heavy bag much larger than herself and Haredas with great ease. Nami is a highly skilled navigator and a extremely talented cartographer. Arlong considered her skills on par with the fish-men "superiority" since they were superior to any fish-man's. When Luffy destroyed her room at Arlong Park both bathymetric and geographic maps were seen, proves that Nami has a wide variety of cartographic skills. Nami has strong memory when it comes to finances since she is mainly handling the Straw Hats' financials due to her fondness of money. While shopping, Nami tends to negotiate as seen during the Return to Sabaody Arc where Nami demanded a discount over the clothes that she attempted to buy at a fashion shop, much to the shopkeeper's chagrin. Nami is a very convincing person, so much so that she has shown herself to be quite the negotiator in her own right. She has shown to be able to negotiate on behalf of most of the Straw Hats, although most of the negotiations are charged with financials or anything else that would be for her own benefits. Nami's fighting style focuses mainly on using the Clima-Tact to manipulate the weather of her surroundings, also known as the "Art of Weather". Which when combined with her immense knowledge of meteorology and weather systems, can be used for devastating results.

She first gained the ability to manipulate the weather when Usopp gave her the Clima-Tact. The flaw with his invention, however, was that it was primarily for party tricks. Regardless of this conflict, due to her expertise she was able to combine several of its functions in order to pull off dangerous and useful techniques, like creating a mirage of herself, (Mirage Tempo) in order to distract her opponent, and a powerful lightning cloud (Thunderbolt Tempo), which was used on Miss Doublefinger who thought she was a magician.  After the Skypeia Arc, Usopp improved the Clima-Tact with Dials, creating the Perfect Clima-Tact. This improvement gave her much greater power of the weather, allowing her to easily pull off stronger and newer versions of the tricks she could do with the Clima-Tact, like creating insubstantial duplicates of herself using mist (Mirage Tempo: Fata Morgana). This weapon was also powerful enough to allow her to wipe out hordes of Marines (Thunderbolt Tempo) successively and defeat CP9's Kalifa (Thunder Lance Tempo). There was still a flaw in its use, however, as Nami was unable to properly control the lightning and her allies would sometimes sustain collateral damage. After being further upgraded due to Usopp's Pop Greens and Franky's genius, Nami's new Sorcery Clima-Tact is now the "culmination of all of Weatheria's weather science, and has been described by Usopp as being "this century's greatest" something. The Clima-Tact can now grow or decrease in length when different amounts of pressure are applied, and is easier to twirl and use. It also seems to leave patterns in the air when it is used, overall giving it the feel of a magic wand of sorts. Ironically enough, the only Weatherian device that Usopp failed to implement into the upgraded Clima-Tact was a "magic wand" that he didn't quite understand. After capturing the thundercloud homie Zeus, Nami can use her Clima Tact to store Zeus inside, and when necessary she can use Zeus supplemented with her Clima Tact abilities to perform destructive lightning attacks. Though infrequent, Nami has a couple of other moves that she can use to incapacitate (in more ways than one) her opponents. Shiawase Punch, literally meaning "Happiness Punch"): a joke technique that Nami uses to dispatch people watching her bathe; she simply drops her towel, causing any male in the vicinity to collapse from a massive nosebleed. She also uses this as a get-rich-quick scheme, as she charges Beli100,000 to anyone who sees her doing this. This is called Happiness Punch in the FUNimation dub. Impact Nami uses an Impact Dial to absorb attacks and then send them back at her opponents. Since she does not have a lot of strength she suffered from the drawback of the Impact Dial. This was shown only when she finished off Hotori with Gan Fall. This technique retains its name in the FUNimation dub.