Three size: 95-59-92

Height: 160 cm

Weight: 45

Kyoko is a girl who is confined in Furumachi Hospital due to being a victim of the mysterious serial killer. It appears that she was Ayumu's classmate in middle school and also takes a liking to Ayumu, as she often blushes when they speak to each other. In the series so far she is the only survivor of the mysterious serial killings and the only one to have seen the killer.