Akira Inami is a former Self-Defense Force member. He was emotionally scarred by a special mission and subsequently discharged from the Self-Defense Force. Now, Akira Inami works for a secret Special Investigation Team at the National Police Agency. Meanwhile, Saburo Tamaru 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 Akira Inami, Saburo Tamaru and other members, the Special Investigation Team tackles important political matters and dirty jobs for the government.