Grim Grimoire is the story of young Lillet Blan, a student at the Tower of Silver Star. She lives in a world where science is replaced by magic - where youngsters attend wizardry schools to learn the art of magic. Only the most gifted get into the prestigious Tower of Silver Star. When Lillet was away, a horrible event occurred - everyone in the school was killed. Now Lillet Blan must investigate the magical tower to uncover what occured during the 5 days she was gone.