In the 73rd cadet class of Kibi's Defense University, a routine shakedown cruise on the newly commissioned starship 'Amaterasu' transitions into a graduation prelude. Upon their return to Kibi, startling news of a hostile Kingdom declaring war shocks the cadets. Witnessing their government's swift surrender, the cadets take matters into their own hands, initiating a war effort aboard the 'Amaterasu'. Securing funds through a pact with a galactic news network, they unwittingly become the central figures in a life-threatening 'reality show' unlike any other.