Kana Kurozaki is assigned to investigate Serial Rapist X. However, information about X is scarce, with no name or any concrete details about his identity, not even a decent photograph. Kana's father, Gorou, who was once a special investigator himself, also dedicated himself to catching X but tragically died in the line of duty. Now, Kana seeks the help of her father's former subordinate and the man who came closest to uncovering X's identity, Eiji Kagam. Unbeknownst to her, this Eiji Kagam is X himself. Intrigued by Kana, he drugs her, taking control of her mind...
