Kyoko is a student in Jusho High School and is part of the "gifted" class, although she is considered unintelligent by others in the same class, such as Kenichi Takai. Early in the novel's story, Kyoko has Kondo Hiroyuki beat up Akemi Nakajima. Kyoko had made advances on the latter, which were rejected. Insulted, she told Kondo that Nakajima had flirted with her. Later after her death, the image of Kyoko would be used to torment Nakajima and remind him of his sins during his battles against Loki and later Seth.