Nineteen-year-old Naruse Noka works hard everyday to become an idol, doing everything she can to get the job; however, her reality is twisted when she meets a strange girl on the Human Zoo of Hell—a place where you can see the lives of those who failed.

Noushou Sakuretsu Girl is based on the Vocaloid song of the same name included in the Jigokugata Ningen Doubutsuen album.