Summer Wars

Summer Wars Japanese , Hepburn Sam Wzu? is a 2009 Japanese animated science fiction film directed by Mamoru Hosoda, animated by Madhouse and distributed by Warner Bros. Pictures. The films voice cast includes Ryunosuke Kamiki, Nanami Sakuraba, Mitsuki Tanimura, Sumiko Fuji and Ayumu Sait. The film tells the story of Kenji Koiso, a timid eleventhgrade math genius who is taken to Ueda by twelfthgrade student Natsuki Shinohara to celebrate her greatgrandmothers 90th birthday. However, he is falsely implicated in the hacking of a virtual world by a sadistic artificial intelligence named Love Machine. Kenji must repair the damage done to it and find a way to stop the rogue computer program from causing any further damage.

Kenji Koiso Ryunosuke Kamiki is a young student at Kuonji High School with a gift in mathematics and a parttime moderator in the massive computersimulated virtual reality world OZ along with his friend Takashi Sakuma Takahiro Yokokawa.One day, Kenji is invited by fellow Kuonji student Natsuki Shinohara Nanami Sakuraba to participate in the 90th birthday of her greatgrandmother Sakae Jinnouchi Sumiko Fuji. After traveling to Sakaes estate in Ueda, Natsuki introduces Kenji as her fianc to Sakae, surprising them both. Kenji meets several of Natsukis relatives and discovers that the Jinnouchis are descendants of a samurai vassal of Takeda clan who challenged the Tokugawa clan in 1615. He also meets Wabisuke Jinnouchi Ayumu Sait, Natsukis halfgranduncle and a computer expert who has been living in the United States since stealing the familys fortunesyears ago. ........

Source: Wikipedia