Princess Florence, also known as Princess Flora, is the princess of Austria residing in Vienna. She exudes notable vanity and a self-centered disposition shaped by her privileged upbringing. At her lavish 1907 birthday celebration, reacting impulsively to a perceived insult about her beauty relying on her precious ring, the "Smile of the Amazon," she discards it inside a fish thrown out a window. She declares she will marry whichever suitor retrieves the ring, viewing potential partners primarily as means to wealth or status. She is initially dismissive of others, including the protagonist Honey Honey, based on social hierarchy.

Throughout the narrative, she actively pursues the ring across international locations like Paris, New York, and Tokyo, driven by her desire to reclaim it and assert her will. Her interactions with the gentleman thief Phoenix reveal a complex dynamic; they often clash due to his mocking demeanor, yet she harbors unspoken romantic feelings for him, contrasting with her overt disdain for other suitors. These suitors, embodying stereotypical national caricatures like the elderly Arab oil sheikh "Oil Dollar," the gun-toting German "Herr Gustav," and the Native American "Geronimo," pursue her for financial or political gain, reinforcing her transactional view of relationships.

A significant shift occurs when she is kidnapped by King Kong in New York. Rescued by Honey Honey's empathetic intervention and the revelation that Honey Honey is her long-lost younger sister, her demeanor gradually softens, leading to their reconciliation. In the concluding events, she demonstrates newfound cunning by deliberately discarding a fake ring, swallowed by a puppy, to deceive and divert her persistent suitors. This final act underscores a subtle evolution towards strategic independence, though her core traits of vanity and assertiveness remain intact.