Nami

The first time she sees Luffy, she calls him boss in front of Buggy's thugs and leaves him to deal with them alone. In Orange Town, Nami wants to steal Buggy the Clown's map of the Grand Line. To get close, she pretends to join his crew and hands over Luffy tied up. When the pirates order her to kill Luffy to prove her loyalty, she can't.

After Luffy beats Buggy, Nami takes the map and the treasure and travels on with him and Zoro, making it clear she's just a partner and not a pirate. She tells anyone who'll listen that she hates pirates and only wants their treasure.

In Syrup Village, Nami helps hold off Captain Kuro's attack, and the crew gets the Going Merry. At the Baratie restaurant, while everyone's focused on the fight with Don Krieg, Nami slips away alone with the ship and the treasure.

Johnny and Yosaku, pirate hunters traveling with the group, recognize where she's headed: the territory of Arlong, a fish-man pirate. Luffy decides to go after her.

In Cocoyasi Village, Nojiko, Nami's foster sister, tells the crew the truth. Nami was raised by Bell-mère, a former Marine who grew tangerines. When Arlong took over the island, Bell-mère was killed in front of her, and Arlong took the girl to draw maps for him, promising to give back the village for 100 million berries. That's why she stole.

When a Marine captain on Arlong's payroll seizes her savings, Nami realizes he was never going to keep the deal. She stabs the Arlong Pirates tattoo on her arm and, in tears, asks Luffy for help, and he puts the straw hat on her head. Luffy wrecks the room where Arlong kept her drawing. With Arlong beaten, Nami swaps the tattoo for a pinwheel and a tangerine and joins the crew for good.

Entering the Grand Line, Nami comes down with a dangerous fever, and the crew stops at Drum Island looking for a doctor. Luffy climbs the snowy mountain with Nami on his back to Dr. Kureha's castle. Once she's cured, they reach Alabasta, where each crewmate has to beat a Baroque Works agent.

Usopp gives her the Clima-Tact, a staff that creates weather effects. Against Miss Doublefinger, a woman covered in spikes, Nami figures out how the weapon works mid-fight and takes her down with a lightning bolt.

During the two-year split, Nami lands on Weatheria, a sky island where scientists study the weather, and comes back with a far more powerful Clima-Tact. On Whole Cake Island, territory of the Emperor Big Mom, she joins Luffy, Chopper, Brook, Carrot and Pekoms on the team going to rescue Sanji, who was taken to marry one of Big Mom's daughters.

During the escape, Nami lures Zeus, Big Mom's living thundercloud, with clouds he can't stop eating, and turns Zeus against his owner. After Brook slices him in half, she threatens to finish him off unless he serves her. Zeus becomes her servant.

In Wano, Nami disguises herself as a kunoichi and slips into the capital. In the raid on Onigashima, Kaido's island, she and Usopp run from Ulti, one of Kaido's Tobi Roppo, who wants little Tama back.

When Ulti corners her, Zeus appears inside the Clima-Tact and offers Nami his power. With Zeus's lightning, she defeats Ulti.

Oda based Nami on Ann and Silk, heroines of Romance Dawn, the one-shots that led to One Piece. At first she was going to wield a big axe, which he swapped for a staff. Akemi Okamura voices her in Japanese, with Wakana Yamazaki filling in for episodes 70 to 78 during a maternity leave, and Luci Christian voices her in Funimation's English dub. In Netflix's live-action series, Nami is played by Emily Rudd.