Kiriha Kisaki holds the title of Six Blade Priestess within the Taishikyoku, a rival organization to the Lion King Agency. Initially positioned as an adversary, her allegiance shifts to an allied force, collaborating closely with Kojou Akatsuki and Yukina Himeragi during pivotal operations, such as rescuing Nagisa Akatsuki via strategic intelligence and tactical aid. Her demeanor balances calm authority with calculated provocation, exemplified by playful antics such as a bikini-clad hot spring encounter to tease Kojou.

Combat expertise centers on her spear, Richel Carle, a weapon capable of mirroring supernatural talents from allies and foes alike—mimicking Sayaka Kirasaka’s protective barriers or Yume Eguchi’s mind-manipulation tactics. Supplementary skills include summoning panther-shaped Shikigami for reconnaissance or tactical alerts, offensive incantations like *Pulsation* to amplify magical force, and *Burning Thunder* to unleash fiery blasts across wide areas. She employs invisibility through chants and demonstrates agility in close combat, delivering enhanced physical strikes with precision.

Her dynamic with Kojou evolves from initial hostility to a bond of mutual respect, punctuated by defending him against threats like Natsuki Minamiya. A foreshadowed future positions her among Kojou’s spouses, hinting at a deepened emotional bond. Her surname, blending the characters for "princess" and "cape," and her given name, derived from "mist" and "leaf," subtly mirror her enigmatic persona. Once rivals, she and Yukina forge camaraderie through shared battles and aligned goals, their collaboration underscoring a partnership built on trust.