Hiyori Yamabuki is a teenage magic user participating in a Tokyo internship program alongside Sora Suzuki. Born into a wealthy family with established business interests, she faces significant pressure to abandon her magical studies and join the family enterprise, creating a core conflict between tradition and personal aspiration.

She maintains a reserved, diligent, and responsible demeanor, contrasting sharply with Sora's outgoing personality. This reserve often conceals underlying anxieties about fulfilling familial obligations while pursuing her own path. Despite external pressures, she displays a quiet determination in her magical studies.

Hiyori's magical specialty centers on weather manipulation, specifically the control of rainfall. This ability connects thematically to her surname "Yamabuki," referencing the Japanese kerria rose and incorporating meanings related to "mountain" and "song" or "wind," suggesting a natural elemental affinity.

Throughout her journey, Hiyori undergoes substantial personal growth. Initially bound by family expectations, she gradually asserts her independence. Interactions within the internship, particularly observing Sora's dedication despite hardship, strengthen her resolve. By the series' conclusion, she decisively breaks from family pressure, choosing a career path that professionally utilizes her weather magic as a meteorologist.