|Birthday||January 1st, 1993|
|Hair Color||Blonde & Black|
|Favorite Actor||Tom Cruise|
|Favorite Animal||Iggy's race|
Jolyne is a young woman of above-average height and slim to athletic build.
Bold-eyed, she wears her hair in two "layers": A dark base including two large buns atop her head and a short length going down her neck; above which, lightly dyed or bleached, she keeps a plait or braid that winds around both buns, joining in a short length at back, and bangs that frame her face.
Jolyne has a small star-shaped birthmark on the rear of her left shoulder, close to her neck; and has tattooed on top of her left forearm the image of butterfly wings superimposed with a downward-pointing dagger.
Jolyne was born after New Years Eve of the year 1992, her father, Jotaro Kujo, was not present.
Jolyne's childhood was often spent without her father, as Jotaro was mostly at work even when Jolyne was in need of the most attention. In 1998, Jean Pierre Polnareff, Jotaro's best friend, came to visit their home; Polnareff and Jolyne were close to each other, with Jolyne calling Polnareff her uncle.
During the summer of 1999, the notice of Jotaro's death shocked her, spending the whole day crying in her bed.
In 2009, Jolyne was about to be killed in a cars accident, but a pink-haired boy saved her. Later, this boy introduced himself as Narciso Anasui, soon after, Jolyne and Anasui became a couple.
In 2011, Anasui was arrested for invade and disassemble private property, since then, Jolyne has made weekly visits to him in the Green Dolphin Prison.
- Jolyne hates selfish people, despite herself being selfish.