Also known as: サマーウォーズ
A 2009 original anime movie directed by Hosoda Mamoru and produced by Madhouse.
Set in 2010, Summer Wars tells the story of Kenji Koiso, a timid eleventh-grade math genius who is taken to Ueda by twelfth-grade student Natsuki Shinohara to celebrate her great-grandmother's 90th birthday. However, he is falsely implicated in the hacking of a virtual world by a self-aware, sadistic Artificial Intelligence named Love Machine. Kenji must repair the damage done, and find a way to stop the rogue computer program from causing any further chaos.