Fumio Hoshino cares for Haruka Suzumiya as her nurse during Haruka's hospitalization after the accident-induced coma. She deeply understands the emotional rift and differing experiences between Haruka and Takayuki Narumi caused by their three-year separation, guiding her supportive approach. Once, encountering Takayuki by chance on the street, she offers him comfort during a difficult time, extending her care beyond hospital duties. Within the narrative, she remains a minor character, contributing through her medical role and personal moments of encouragement.