Miyabi holds the position of one of the Four Gods, embodying the West as Byakko. She wields potent fire magic as a powerful mage. Her personality is fiercely determined, stubborn, and protective of her allies, marked by a quick temper and readiness to challenge authority or traditions. This fierce exterior belies a softer, compassionate side that emerges over time.

Following initial conflicts, Miyabi forms deep loyalty toward Takuto Hasegawa, becoming a key ally. She aids him through the magic academy's challenges, often risking herself for his sake. Her evolving relationship with Takuto becomes central to her character arc.

After capture, Miyabi and her associate Synclavia are disavowed by their organizations, becoming rogues. Eitaro Sakuma seals their magical abilities, rendering them powerless. Sakuma enslaves them as doujinshi assistants and models for his hobbies, frequently dressing them in fetish-themed outfits. They endure demanding workloads, typically complaining only about the long hours, not the tasks themselves.

This enslavement signifies a major shift in Miyabi's circumstances, a direct consequence of her prior actions and affiliations. The loss of her magic and forced servitude under Sakuma illustrate the consequences she faces.