A Masō-shōjo who is the serial killer responsible for killing Ayumu.
Kyoko is created by Shinichi Kimura and designed by Kobuichi and Muririn as the antagonist for Kore wa Zombie Desu ka? franchise. Though, she becomes a minor character in season 2, Kore wa Zombie Desu ka? of the Dead.
She is voiced by Noriko Shitaya in the Japanese version and Lindsay Seidel in the Funimation dub.