Julia is Mizuki's best friend from America in Hana Kimi. She comes to Japan to study for a month and finds out that Sano knows that Mizuki's a girl. Julia tricks Mizuki's classmates into thinking that she and Mizuki are lovers to gauge Sano's feelings for Mizuki. Nakatsu, jealous that Julia is close to Mizuki in a way that he can't be, takes a strong dislike in her, as does she, calling him 'Monkey Boy'.
Julia retains her name in the Taiwanese version, and in the Japanese version as well. Although, she does not appear until episode 13, an extra episode, of the Japanese version.