Inami Akira is a former Self-Defense Force member. He was emotionally scarred by a special mission and subsequently discharged from the Self-Defense Force. Now, Inami Akira works for a secret Special Investigation Team at the National Police Agency. Meanwhile, Tamaru Saburo is kind and stoic. He used to go on special missions, but due to an incident was ordered to join the Special Investigation Team. With Inami Akira, Tamaru Saburo and other members, the Special Investigation Team tackles important political matters and dirty jobs for the government.