Magical girls don't get time off, so even though Illya and Miyu have just saved the world (see FATE/KALEID LINER PRISMA ILLYA,) it's now their job to clean up the resulting mess! Unfortunately, there's no established system for disposing of hazardous magical materials and sealing the Class Cards has caused some serious side effects... one of which is that Illya now has a duplicate doppelganger who is being a very bad girl! Can Illya get "herself" under control in a conflict of split personalities? And even once she's comfortable with her dark self, is it wise to take her on a trip to the beach while preparing for her next mission? Not unless you're ready for the demons, alternate dimensions, and all the other Magical Girl stuff that ensues in FATE/KALEID LINER PRISMA ILLYA 2WEI and FATE/KALEID LINER PRISMA ILLYA 2WEI HERZ!