A female detective "Aino" who has a past who was once a hostage in a series of female assault cases. There was a spectacular past in which a colleague detective who was a lover at that time was killed when rescuing "Aino" ... One day, a hostess in Roppongi was murdered and "Aino" saw the situation at the scene. I'm sure it's the work of the assault demon! The fight of a female detective begins with the determination to sacrifice herself for clues to arrest the criminal ... [Special appearance: Tsubasa Ayumi]