Played this time by Maiko Tohno, Rei is on the trail of a terrorist group that has abducted a famous scientist and is trying to perfect a lethal virus, threatening to release it in Tokyo's water supply. Rei's superior teams her up with Sara, a female expert in computers and bio-chemistry, and they don't get along very well at the start, Sara is also trying to un-block her lost memories.

Rei, whose undercover role is so guarded that there is no written record of her identity, is well known for her accuracy in completing missions and her willingness to get naked if the situation calls for it. When she's instructed to bust Kayama, who has been buying confiscated drugs from corrupt police officers, she finds herself in a sticky situation not only is she attracted to him, but Kayama, like Rei, does not officially exist.

Rei, a woman without a past or identity, is an undercover agent to the Zero Department, a deadly underground division of the Japanese police force. Someone has been slaughtering innocent people for the medical Black market. Rei is assigned to kill the mysterious criminal, and her only lead is a mistress of a large criminal boss, who is seducing Rei.

A woman with no past or identity, Rei is a gorgeous undercover agent for the Zero Department, a deadly shadow division of the police force. But her skillshave made her a threat and this sleek, sexy assassin has been marked for death by a rival organization. It will take this deadly seductress every ounce of her cunning to survive!

Rei, an undercover agent for the Zero Department, is on a mission to investigate the multiple murders of men. While out, she meets Mitsuru, a male prostitute. Rei decides to have him live with her. But Rei is suspicious of Mitsuru's behavior and wonders if he is involved with the murders.

A special agent of the Tokyo Police has been given the assignment of assassinating a group of crime bosses. Soon afterwards, she encounters the hitman the crime bosses have sent to kill her. After talking together, they discover that they are equally reluctant to carry out their assignments....

A gang of young thieves try to rob a mob boss, but their heist is interrupted by an officer of the Tokyo Police Department's elite Zero Division. They get away with the loot, but the officer, a beautiful, more-than-slightly psychotic young woman who also happens to be an excellent shot, is tracking them down...

A famous businessman's links with organized crime are looked into by the Zero Division of the Tokyo Police, with the investigation being headed by a highly trained, extremely violent and very beautiful female officer. When not having shoot-outs with the crime syndicate thugs trying to kill her, she spends most of her time in her apartment, wearing lingerie and taking showers. A sub-plot involves the businessman's S&M-obsessed daughter.

Agent Zero is a cop that uses her own methods for dealing with criminals. After she unlawfully kills a r@pist in a violent fashion, she is sent to prison and stripped of her badge. But very soon after, a rich politician's daughter is k!dnapped by a ruthless gang. Agent Zero is let out of prison with the mission of going undercover to find the politician's daughter and return her to safety.

Young motor journalist Tsutomu meets a woman named Gaya in the editorial department of a magazine led by a senior at the university, Tashiro. Tsutomu, who is interested in Gaya, a widow of a Hong Kong businessman and an art and crafts expert who is active all over the world, invites Tashiro's younger sister, Kyoko, to try to find out about Gaya. Unexpectedly, Kyoko confesses that her "first experience" was Gaya...