Miki Yunaki, a young angelic apprentice, embarks on celestial trials across Earth to prove her worth as a full-fledged angel. Accompanied by fellow apprentices Yu Amamiya and Cyadoko Asagiri, she undertakes missions within human settings—like managing a flower shop—while contending with divine interventions. Zeus orchestrates trials laced with personal whims, forcing Miki to navigate misunderstandings where mortal interactions clash with celestial duties. Her light blue hair and orange eyes reflect her ethereal nature as she faces challenges blending human life with divine intrigue. Though her pre-trial history remains undefined, her journey intersects indirectly with broader mythological forces, including Hades and Persephone. The narrative emphasizes innocence and devotion, centering on her immediate responses to celestial pressures rather than extended growth. Confined to her original OVA storyline, Miki’s experiences remain framed by the examination’s structure and the divine schemes shaping her path.