Between 1970 and 1974, numerous Japanese film companies -- in particular Nikkatsu and Toei -- produced dozens of films in a new sub-genre which combined action, sex, violence and crime, and was dominated by ruthless and deadly delinquent females. This sub-genre, which Toei would eventually dominate and define, is now known as pinky violence.
With such series as Girl Boss, Girls' High School Terror, and Female Prisoner: Scorpion, as well as...