From Last Gasp:
Following the Third World War, humankind left the toxic surface of the Earth and built an underground city to survive. A serious social problem emerged in this new society: hyperorexia, or severe overeating, a side effect of the Pure Trance life-sustaining pill. This 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—is the long-awaited debut graphic novel of famous Japanese manga artist Junko Mizuno. Pure Trance breaks every stereotype of shojo manga (girls' comics).