Rikujou Jieitai Tokumu Chouhou Kikan - Beppan no Inu

In the Special Operations Group, an elite unit of the Ground Self-Defense Force, there is a female member who is bored with her daily routine of training. One day, at the behest of her superior, she heads to a certain garrison and is recruited by a mysterious man to join a black-ops unit known as “Beppan”. Given the name “Nana”, she finds herself on the front lines of a national defense war filled with schemes and violence.