Motoko (Meisa Kuroki) is a detective in tip-top physical condition, excels in physical combat and willing to kill a suspect if necessary. Misaki (Mikako Tabe) is a cerebral detective with a warm. Both of these women are members of the Metropolitan Police Department's S.I.T. (special investigation team) and work to track down criminal Jiu, the ringleader responsible for a series of brutal crimes. Motoko and Misaki both become involved in personal relationships that leaves them hurt...
Set in the fictional Unasaka domain, the story involves a samurai who's obligated to follow an order that could destroy his relationship with his own younger sister.