Grim Grimoire from NIS America for the Sony PS2 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.

Players to take on the role of Lillet Blan, a young magician who is admitted to a prestigious and mystical magic school; however, on the fifth day of school, everyone mysteriously vanishes.

Lillet awakens the next day to discover she is once again living out the first day of school; but her memories from the previous days are intact, giving her the opportunity to solve the mystery behind the disappearances and prevent the tragedy from occurring.

Now Lillet Blan must investigate the magical tower to uncover what occured during the 5 days she was gone!