The story tells the story of a killer organization composed of high school girl Xi Cong Wuxiang and blonde Miller Yubuk, as well as two female killers, and help each other solve the truth in their lives.

Because it is a killer story, the film has a quite in-depth description of firearms. At the same time, through the impact of "killer" and beautiful girl, as well as the dark industry and tragic life experience, it highlights and describes the deeper discussion of human nature.

NOIR and MADLAX, together with EL CAZADOR (witch hunter), constitute the trilogy of shooting beautiful girls.