There is a serial killer on the loose in Tokyo's subways, killing woman after woman. Subaru Sumeragi witnesses one such murder and becomes involved in the investigation where he meets a woman who can see events through touching objects. When the woman becomes the serial killers next victim and it is up to Subaru to save her. However, it is not long before the killer turns his attentions onto the onmyōji and Seishirō Sakurazuka must come rescue him instead.