As the deadly battle rages between the Female Torture Institute vs. the Himekawa Soke Amazons' Allied Forces, Rika Matsunami, a special agent assigned to the Special Investigation Headquarters at the request of the First Security Office, which escorts overseas agents, hides her identity as the former famous queen "Sara" within the NSI. When her old ally, Olivia of the Amazones Legion, is killed, she confronts Kohei Tsujimaru with the determination to eliminate him in order to avenge her friend's death. What will be her fate?