"Following the Third World War, humankind left the toxic surface of the Earth and built an underground city to survive. A serious social problem has emerged in this new society: hyperorexia, or severe overeating, a side effect of the "Pure Trance" life-sustaining pill.

Our story begins in the hospital which has been ruined by a tyrannical director, Keiko Yamazaki. The cute nurses who toil under Keiko's whip are regular girls, just like your friends and co-workers. Yet this is no soap opera! It is a dreamy science fiction fantasy — a sexy story of catfights, alien safari adventures, evil experimentation, and a girl who dreams of becoming a pop idol singer."