Spring arrives after the snow.

If the mirror had the magical power to reflect the opposite of what it showed, then Moyogi Koyuki's mirror image would have been Moyogi Koharu. The twin sisters looked very similar, yet everything about them was different. The older sister, Koyuki, was as beautiful and pale as snow. The younger sister, Koharu, was as warm and calm as the spring sunshine. Yet when the two were together, they would say as if it were a habit: "We are one body and soul." However, in order to be one as two, Koyuki and Koharu began to bind each other through different and distorted means.