Fate/kaleid liner Prisma☆Illya 2wei!

Another lovely summer goes by for Illyasviel von Einzbern. Taking a break from her magical girl duties, she enjoys her time off after collecting the Class Cards with her best friend Miyu Edelfelt. However, her break comes to an abrupt end when she and Miyu are abducted by Rin Toosaka and Luviagelita Edelfelt, while out with her friends. The magical girls learn that their work is far from over, as Clock Tower informs them that the out of control mana thought to have been sealed continues to be dispersing throughout Fuyuki City. After heading to the origin point of the out of control mana, Illya and Miyu are tasked with solving the anomaly. But after casting their spell, Illyasviel discovers that she's split into two people! As this mysterious new form darts off, she can only wonder: what is to come from the existence of her dopplegänger, running amok in the unsuspecting town? The magical girls are back, and ready for another round of adventure! After successfully recovering the Class Cards, eighth graders-turned magical girls Illya and Miyu think they can finally take it easy. But as fate would have it, the girls are once again called back into active duty when they find out that the Cards have left some very nasty side effects on their world. However, their seemingly easy mission goes totally awry with the appearance of a dark stranger who looks just like Illya! Who is this new but familiar face, where did she come from, and what does she want from Illya? With the arrival of this new foe, it seems like Illya’s finally met her match when her everyday life takes one dark turn!