Release: 2009-08-01
Rating: ⭐ 7.5 (994 votes)
Runtime: 114 minutes
Genres: Animation, Science Fiction
Teenage math whiz Kenji Koiso agrees to take a summer job at the Nagano hometown of his crush, Natsuki. When he arrives, he finds that her family have reunited to celebrate the 90th birthday of their matriarch. His job: pretend to be Natsuki's fiancé. Meanwhile, his attempt to solve a mathematical equation causes a parallel world's collision with Earth.