A Vampire-Ninja and one of the main characters of Kore wa Zombie Desu Ka?. She's rather cold to Ayumu, often calling him with hurtful names, but shows a strong respect for him. As the series goes, she is described as a "Tsundere". Her trademark technique is "Swallow Strike" (秘剣 燕返し), a sword technique that slashes enemies with a sword materialized from leaves.