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.

Mr. Makino is a very popular teacher. He conducts a regular class for the first 30 minutes and then tells "really scary stories" for the last 15 minutes. The dean complains to him, "The other teachers are all doing their 45-minute lessons according to the rules. You should know better. You're an adult." But Mr. Makino has no intention of changing his style. He doesn't like the stuffy atmosphere of the staffroom, so he spends all his spare time in the nurse's office reading books. One day, Nao is resting in the nurse's office sick with the flu, and, through the curtain, hears Mr. Makino talk about his trip to Malaysia.