Based on the comic by Tetsu Kariya.
Agent Zero is a cop that uses her own methods for dealing with criminals. After she unlawfully kills a rapist in a violent fashion, she is sent to prison and stripped of her badge. But very soon after, a rich politician's daughter is kidnapped 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 safely. Using her deadly red handcuffs, she disposes of the criminals one by one.
With a Kansai syndicate setting their sights on Tokyo, a former yakuza boss gets dragged back into a world of violence.
Following her successful prison break, Scorpion begins this third episode in the series hiding out in a brothel. Her prostitute friend tries to keep her identity secret, but the brothel's madam discovers that Scorpion is the ex-girlfriend of the vice officer who killed her lover.
A young girl works as a geisha to earn money for travel.
After being used and betrayed by the detective she had fallen in love with, young Matsu is sent to a female prison full of sadistic guards and disobedient prisoners.
