Lawyer Nozomi relies on her senior colleague Tetsuya, with whom she is about to marry, while struggling daily against the yakuza. Falling into a trap set by a rival gang, she and Tetsuya are captured and locked inside a hideout. With no chance to resist, she is violently assaulted by the men and subjected to harsh treatment as a slave, facing a brutal fate as she is trained to become a soapland prostitute.