Your Name. (light novel)

Mitsuha, a high school girl living in a rural town deep in the mountains, has a dream that she is a boy living an unfamiliar life in Tokyo. Taki, a high school boy living in Tokyo, dreams that he is a girl living in the mountains. As they realize they are changing places, their encounter sets the cogs of fate into motion. Written by director Makoto Shinkai, the work has become a global phenomenon!