Summary: Yuina Akagi is an ordinary high school freshman in Maebashi City, Gunma Prefecture—until a talking frog named Keroppe appears and throws an unexpected proposal her way: "Why don't you become a witch?" Before she knows it, Yuina's closet becomes a gateway to a mysterious world, where she meets four other girls—each with their own quirks and magical potential. There's the fiery Azu Niisato, the...

Summary: After the decline of the once robust fields of science and technology, a new energy source known as magic fuels the modern era. Humanity creates forbidden biological weapons: Gears. Those Gears eventually stand against humanity in a rebellion. Although they manage to overcome in the struggle for survival known as the Crusades, humanity's losses are so great that even after several decades pass,...