Nao is one of only two members of the Digital Camera Club. She only takes photos of the sky and clouds. While she's looking through the finder the slowly drifting clouds, she witnesses a cat walking leisurely in the sky. Surprised, she stumbles and falls off from the rooftop, but miraculously escapes death, owing to a sudden gust of wind that saves her life. This accident immediately puts Nao in the center of attention. In order to avoid the fuss, Nao comes up to the rooftop again, and there she meets her classmate Ryoko.