Retz was a young puppeteer who disguised herself as a boy by dressing in typical boys' clothes and hiding her long hair under a hat. She was often a very sweet and happy girl, although was often seen as argumentative and determined when dealing with Killua.

Retz claimed to be jealous of Gon and Killua’s relationship. She was also afraid of her brother, who had revived her as a manipulable doll that he could control if he needed to.

She constantly wondered what "true life" really was. Despite b