[Machine Translation] A female inmate serving time for the manslaughter of her own child escaped from the Fuchu Police Station during transportation. The next day, an unprecedented stand-in occurred at a police academy in the midst of a graduation ceremony, taking an assistant instructor and students hostage. The culprit is a man who married a female prisoner in prison, and he demands to find out the real culprit of the incident she is said to have caused. Ayano, a detective at the same police station, and Gomi, a former Metropolitan Police Department detective and instructor at the police academy, set out to get to the bottom of the matter. Soon, the existence of another collaborator comes to light. This is the third installment of the popular series.