In order to settle a business dispute, a mob leader murders one of his own teenage sons. The surviving son vows to avenge his brother's death, and organizes his own gang of teenage killers to destroy his father's organization.
A young woman gets a new job as an executive secretary. Her boss discovers that she resembles her late mother who he desired but lost to another man. Seeing his chance for revenge the boss and his sadistic circle of friends make plans to turn her into his personal sex slave.
Hikaru is a female teacher at an all boy's high school. Yata is a mysterious student who transfers from another school. He is the younger brother of a boy who had committed suicide because of his obsession with Hikaru. Yata wants to avenge his brother's death so he recruits two more boys and they rape Hikaru on the school roof. When she discovers the reason for the attack, she stalks them before they can do any more damage.
