Kyōko Tsukihashi is a main character in the anime Lights of the Clione. She is a female adolescent with brown eyes and shoulder-length brown hair. Her personality is described as frank, straightforward, and considerate of others. She is cheerful and optimistic by nature, and she cares deeply about her classmate Minori Amamiya, who is often absent from school due to chronic illness and who suffers from bullying. Kyōko, along with her friend Takashi Aoi, makes an effort to reach out to Minori and offer her friendship, hoping to see her smile. Even after Minori is admitted to a hospital in a distant town, Kyōko remains concerned for her. Two months after Minori’s hospitalization, Kyōko and Takashi receive a mysterious email with no sender listed, which informs them of a summer festival in a nearby town. This event serves as a catalyst for the story’s emotional journey. Kyōko’s role in the narrative is that of a supportive friend whose optimistic and caring nature provides emotional stability for both Minori and Takashi. Her key relationship is with Minori, whom she tries to protect and encourage, and she also works closely with Takashi in their shared desire to help Minori. Over the course of the series, Kyōko’s growth is seen in her deepening empathy and her determination to act on her caring impulses. She does not possess any supernatural or special abilities; her notable strengths are her emotional intelligence, her ability to connect with others, and her active concern for those in need.