Lillet Blan is a talented young mage who has been invited to enroll in the Magic Academy lead by Gammel Dore, an academy located at the former castle of the Archmage. Excited and eager to learn, Lillet studies hard with her new grimoire. However, after just five days a terrifying disaster strikes and all lives are lost except for Lillet's. Through some unexplainable force she travels back through time to repeat those five days and find out what caused this catastrophe and how it can be stopped. Now Lillet must use her newfound knowledge of magic to unravel the mystery behind the Silver Star tower and save everyone from certain doom in GrimGrimoire!