Fearing the rise of the armed violent organization Union, which has become a major force in the underworld, the state has given secret investigators new and powerful investigative powers... A year ago, Shunka's partner and lover Kamishiro was killed right before her eyes by a Union executive, so she is burning with a Kokoro for revenge and infiltrates the organization's hideout alone... An investigator who is burning with revenge after her loved one was taken away. A torture and rape trap awaits the most powerful woman from an evil organization. A busty agent is brainwashed and falls into the enemy organization's sex slave!