Summer Wars

Name: Summer Wars
Director: Mamoru Hosoda
Genre: Animation, Science Fiction
Released: 2009-08-01
Rating: 7.455
Cast: Ryunosuke Kamiki, Hitomi Miyauchi, Mitsuki Tanimura, Sumiko Fuji, Ayumu Saito

Original title: サマーウォーズ

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Synopsis Summer Wars

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.