Kiyoka Nishino (西野 清夏) is a female teenager characterized by waist-length brown hair and blue eyes. She wears a school uniform and consistently appears with braided hair and a ribbon tie. Functioning as a supporting character, she holds the established role of childhood friend and classmate to primary character Yamato Ichidaiji. Her given name Kiyoka translates to "clear, pure, clean" combined with "summer," while her surname Nishino means "west field" or "west wilderness."