Fearing the rise of the armed violent organization Union, which has become a major force in the underworld, the nation has given secret investigators new and powerful powers to investigate. A year ago, Shunka was killed by a Union executive in front of her buddy, her lover, Kamiyo, and infiltrates the hideout of a single-person organization with a desire for revenge... An investigator is burning with revenge after his loved one is taken away. The evil organization awaits the strongest woman, a trap of torture and humiliation. A busty agent is brainwashed and falls into a flesh slave of an enemy organization!