Rozaliya Olenyeva grew up in the same orphanage as Bronya and Seele, along with her sister, Liliya. Due to an accident, her body has been modified. Though she is often chided for being obnoxiously loud and rambunctious, many have noted that her mature side shines through when she looks after her sister.

Age: Unknown

Birthday: Unknown

Height: 149cm (no horns)

Weight: Secret

Measurements: 72cm/53cm/75cm

(Source: Honkai Impact 3 Wiki)