Behind a Shinto shrine in Shimoda, there is a large rock. It is said that if four close friends gather around the rock and all wish for the same thing, that wish will come true. As four friends — the cheerful and frank Natsumi, the good at studying and in sports Saki, the fan of the idol group Four Seasons Yuka, and Rinko, who loves music — gather around the rock like they used to in their childhood, they soon find the rock can indeed grant their wishes. With only a short amount of time before Saki is due to transfer schools, the girls spend a summer filled with magic.