Shinozaki Ryoko achieved outstanding results in her entrance exam and was recognized as an excellent detective. However, she concealed her identity and infiltrated a malicious criminal organization to expose its conspiracy. Her actions were extremely dangerous, and inevitably, her true identity was uncovered. One day, she fell into a cleverly laid trap and was exposed. Imprisoned in a torture cage and placed in a desperate situation, she is subjected to merciless treatment by the organization's members—eventually facing the fate of being sold off as a pleasure slave. What will become of Ryoko's future?