Introduction｛A new Magical Girl story has been written.｝
The setting is an up-and-coming town called Kamihama City. What's happening here...? Iroha Tamami has tracked her missing little sister, Ui, to Kamihama City. Eventually, a magical girl from Mitakihama City named Homura Akemi appears. I may be able to save Kaname if I can get to the bottom of what's happening here... Another hope is born when the magical girls of two cities cross paths.