Beginning in Issue #7, there was one girl per issue who was chosen as THE GRIMOIRE GIRL. If a girl appeared more than once, she was a GRIMOIRE GODDESS.
Bill Zebub did not want anyone to think that there was only a certain kind of beauty or physique that made a woman desirable. Each Grimoire Girl had her own look, body type, et cetera. The only thing that was important was that the woman loved metal.
Some of these girls became quite popular, being much sought by bands and others.