Tsutomu Hori

High School Co-ed follows a biker gang whose members ride around beating up men and raping women until one of the members begins to develop something of a conscience, due to the influence of two women in his life: his younger sister, Megu, and one of his victims, Nami. When this happens, a conflict arises between the members of the gang and leads to a disquieting conclusion.

Ryu, a sinister transfer student with a dark past, sexually assaults his way through his nubile female classmates to his ultimate conquest, the leggy athletic champ and class president Misa. Tadao is also in love with Misa and wants to take her virginity for himself. The big Eros High School track meet is happening soon. Will these two boys ruin her chance of winning? What strange secret is Misa hiding from everyone? Why is Ryu prancing around in a banana hammock with a pet pig? (synapse-films.com)

A woman is being sexually assaulted by a pair of thugs when out of the fog appears the High Heeled Cats – a trio of avenging angels, masked and dressed in black. These beautiful vigilantes make a living running a coffee shop by day, and kicking misogynist criminals in the balls by night. Their boss is an elderly lady offering a payback service to women who have been mistreated by men...

Japanese anthology

17th film in the Apartment Wife series.

In a rural town, ex-members of a motorcycle gang become sporadic victims of a vigilante attack. A group of high school boys are responsible for the various assaults because they're upset that the motorcycle gang had disbanded. Seemingly, these kids idolized the rebel gang and harbored dreams of joining them after graduation. Female student Miku (Megumi Saki) happens to see one of the vengeance assaults, and is threat-ened by the high school thugs.