In the aftermath of World War III, the inhabitants of Tokyo are living underground in a giant dome. With no meat or vegetables, everybody eats highly addictive nutritional pills called Pure Trance - and the nurses of hospitals like Center 102 are there to help with the resultant eating disorders. Center 102 is run by the sadistic, homicidal director, Keiko Yamazaki and the only way for nurse Kaori Suzuki to protect her charges is to escape to the off-limits surface world.