Section 0 is the most covert operation within the Japanese police department. It's so secret, it reports to no one. Once an operative accepts an assignment, they carry it through to the death. Meet Special Agent Rei, code name, Zero. She's beautiful, strong, and seductive, not to mention... deadly.

The sequel takes it all one step further as Special Agent Rei of the police department's top-secret "Section O" returns as a dangerous assassin! Natsuki Ozawa takes on the role of the extreme detective, cool and sexy in a violent world of crime.