Saya is a married couple who works for the Teito Security and Security Investigation Division. One day, while investigating a series of lewd incidents on the train, Saya herself encounters a lewd and lets the main culprit escape. Saya is depressed after letting the culprit escape due to her own blunder. However, when investigating the man who caught it, it turned out that it was not just a lewd incident, and Saya embarked on the investigation of the lewd group again. And when Saya finally finds out the organization's headquarters, inside, men with guns are waiting for Saya's husband as a hostage...