The summer of his high school freshman year, Hodaka runs away from his remote island home to Tokyo, and quickly finds himself pushed to his financial and personal limits. The weather is unusually gloomy and rainy every day, as if to suggest his future. He lives his days in isolation, but finally finds work as a writer for a mysterious occult magazine.
Then one day, Hodaka meets Hina on a busy street corner. This bright and strong-willed girl possesses a strange and wonderful ability: the power to stop the rain and clear the sky…