Hideo Nishimaruko (Hideo Nishimaruko) is implanted with a bio-weapon called "Orochi" to fight a space creature that has driven mankind to the brink of extinction, and his support is provided by a special medic named Inori Tokaichi.
Under the extreme conditions of wartime, the two gradually grow closer.
Nakano Deichi, a genius who continues to depict self-consciousness, depicts boy meets girl on the battlefield.