Bird Familiar

The very person who turned Byakuya into a magical girl. On the surface, Bird Familiar assumes the appearance akin to a cat mascot costume. This being, who descended from the heavens to lead magical girls, is known as an "angel," a messenger tasked with a divine order, yet Byakuya's Bird Familiar has a fondness for alcohol, women, and tobacco—a dissolute and lewd creature. It even makes sexually harassing advances towards Byakuya, with a rough manner of speech.

The money Byakuya earns from part-time jobs is managed by Bird Familiar, who also handles the Mimori family's asset management. It is the same individual who introduces Byakuya to job opportunities, many of which are night jobs or involve dangerous content (Byakuya, motivated by money, rarely questions these jobs). Bird Familiar does not supervise Byakuya's work as a magical girl, instead preferring to relax at home or go out as it pleases. Despite often treating Byakuya poorly, it genuinely admires her as the magical girl it chose. Bird Familiar's relationship with its own magical girl is contentious and incompatible in regard to opinions.