Miyabi displays distinctive physical traits: long blonde and white hair, white skin, visible fox ears, and a tail. Her appearance typically features a dress and apron, complementing her hime-cut hairstyle and brown eyes.

She exhibits an assertive personality and notable diligence in her work. This assertiveness surfaces frequently in interactions with her father, whom she scolds for his quirky and self-centered behavior, though underlying care remains.

Her background includes attending an academy in the Imperial Capital. There, she befriended Eliaria Jamil and Michelle Wildan after delivering a message from Ryoma Takebayashi. This initial connection led them to form a formal group, later expanding to include Riela Clifford and Kanan Schuzer.

Regarding her lineage, unresolved trivia presents two possibilities: she may be her father's stepchild, implying her mother was already pregnant when they met, or foxkin biology does not inherit human traits.