A conflict of interest between two high-kicking assassin sisters is complicated as they're pursued by the criminals who hired them and an equally high-kicking female cop.

This spin-off movie provides a different contrast to the familiar Young and Dangerous films with greater character development. This time, the story's focus is on a female character - Sister 13 (Sandra Ng) of the "Hung Hing" triad. In a triad underworld dominated by men, the film tells the story of how she faces trials and tribulations of rising to become the branch leader of Portland Street. The story shows the reasons she became a lesbian. The film also gives more details about the "Tung Sing" triad, and how the relationship between Sister 13 and Ben Hon develops.

A mysterious woman, known as Madame M, kidnaps forty pre-teen girls and transports them to a remote island to train them as the most deadly assassins. CIA operative Jack Chen follows the case for 6 years with no leads, but when a series of assassinations begin to occur, Jack suspects that Madame M is back in business.

18 year old Ainu (Lily Ho) is kidnapped and sold to a brothel. Her good looks and wild personality make her very popular with the lustful clients, but also draws the lesbian attentions of brothel madam Betty Tei Pei. Betty teaches Ainu the ways of lust and the ways of kung fu, and Ainu becomes more and more similar to her captor. But rage at her treatment is still burning inside her.

Four girls take part in illegal underground fighting event "Girl's Blood" held at an abandoned school building in Roppongi every night. The girls have their own stories and quirks from their private lives. Satsuki (Yuria Haga) suffers from a gender identity disorder, Chinatsu (Asami Tada) ran away from an abusive husband, Miko (Ayame Misaki) is a S&M queen and Mayu (Rina Koike) has a Lolita face.