Hiyori Miyazaki, mother of Chisaki Miyazaki, features thigh-length orange hair typically secured in a low ponytail with bangs swept left. Her physique includes larger breasts, distinguishing her from her daughter while resembling an older version of Chisaki.

Her personality merges maturity and childlike traits. She demonstrates maturity through raising Chisaki and imparting cautionary advice, describing men as "wolves" to instill wariness. Conversely, she exhibits a childish lack of resistance to cute entities, reacting with visible heart-shaped pupils toward characters like Koyuzu Shigaraki or Miria Katsuragi.

Her background includes winning her husband's affection through dedicated exercise and nutritional practices aimed at enhancing her breast size. After giving birth to Chisaki, she raised her with guidance about men yet supports Chisaki's romantic interest in Kogarashi Fuyuzora, trusting her daughter's judgment.

Hiyori possesses no supernatural abilities or combat skills. Her relationships center on familial and affectionate bonds: she shares a supportive yet protective dynamic with Chisaki, enjoys physical interactions with the tanuki Koyuzu Shigaraki—allowing unrestricted breast fondling—and finds the yokai Miria Katsuragi adorable, expressing desire to touch her ears.