2150 A.D. The battle with the Festum, the silicon life-forms from distant outer space, had reached a new dimension. The North Polar Meir that was crushed during the First Azure…

Yuuta and Rikka are in their third year of high school. One day in Spring, Touka declares that she will take Rikka to Italy with her, as her job has…

Summary of the first season of the show, as seen from Rikka’s perspective with new elements.