Fiona, a 17-year-old student at Flora Girls’ Academy, belongs to the unit Supernova alongside Yue and Millefeuille. She has red hair, olive eyes, and stands 1.62 meters tall. Within the group, Fiona specializes in supportive interactions, often mediating tensions or unraveling interpersonal dynamics tied to her peers’ motivations.

Her narrative prominence arises in Episode 7, where she and Millefeuille recount Yue’s history with Eliza—leader of the disbanded unit Ray and Tiara’s older sister. They reveal how Eliza’s group rescued Yue’s homeland from a magical beast crisis, prompting Yue’s mentorship under Eliza and her ensuing conflicted sentiments toward Tiara. Fiona’s courteous, approachable demeanor starkly contrasts Yue’s reserved nature, positioning her as a diplomatic force who actively bridges misunderstandings and fosters dialogue within the story.