“The "Footstamp operation” … … what the hell really happened there!? “ Okinawa, summer of 2112 before Tsunemori Akane is assigned to Division 1 of the Public Safety Bureau Criminal Investigation Department. Sugou Teppei, belonging to the 15th unit of the joint task force of the National Defense Forces, is taking part to a military operation as an excellent pilot. Three months later, a case where an unmanned armed drone attacks Tokyo and the Ministry of Defense begins. In order to investigate the case, Masaoka Tomomi, enforcer at the Criminal Investigation Department’s Division 1 who went to the National Defense military base, comes near the truth behind the case with Sugou.