Mitsuha Miyamizu, a high school girl, yearns to live the life of a boy in the bustling city of Tokyo—a dream that stands in stark contrast to her present life in the countryside. Meanwhile in the city, Taki Tachibana lives a busy life as a high school student while juggling his part-time job and hopes for a future in architecture. One day, Mitsuha awakens in a room that is not her own and suddenly finds herself living the dream life in Tokyo—but in Taki's body!
It depicts a high school boy in Tokyo and a high school girl in the Japanese countryside who suddenly and inexplicably begin to swap bodies. The film was commissioned in , written and directed by Makoto Shinkai. It features the voices of Ryunosuke Kamiki and Mone Kamishiraishi , with animation direction by Masashi Ando , character design by Masayoshi Tanaka, and its orchestral score and soundtrack composed by Radwimps. A light novel of the same name , also written by Shinkai, was published a month prior the film's premiere.