One Piece Chapter 9, page 8: Chapter 9: Femme Fatale

Nami stands on a high ledge, looking down at Monkey D. Luffy with a bright, confident smile. She proudly declares, "That's right! I steal treasure from pirates!" Luffy, standing in the street below, is immediately excited by this revelation and suggests, "Together we could make a fortune!" However, Nami quickly shuts him down, sitting on the edge and saying flatly, "I don't want to team up with you." Luffy is taken aback, calling out, "Hey, wait a minute!" as Nami leaps down from the ledge with a light "SPROING" and lands on the ground with a "TMP TMP". A caption box formally introduces her: "NAMI THE PIRATE ROBBER".