Here’s the official synopsis:
High school freshman Hodaka Morishima leaves his home on an isolated island and moves to Tokyo, but he quickly finds himself in financial trouble. Living his days in isolation, he eventually lands a job as a writer for a shady occult magazine. Then one day in an alley, Hodaka meets a young girl named Hina Amano, bright and strong-willed, who possesses a strange and wonderful ability: the power to stop the rain and clear the sky.
The film became the seventh highest-grossing domestic film