High school student Shohei Aiba is intrigued by his classmate, Kasumi Asakura, who is actually an undercover special agent code-named Rose Hip. When he tries to find out more about her, he gets caught up in her hunt for a deranged killer.

First published in Japan in 2003 by Kodansha Ltd., Tokyo. This book is read right to left, manga style. "Parental advisory: explicit content"--p. [4] of cover, v. 1.