OZ is a virtual online world where friends can gather and companies do business; connecting the global population in a vast virtual playground. As well as this it is also used for businesses, governments and other officials, forming a vital part of every aspect of human life. Kenji (Ryunosuke Kamiki) is a high-school maths whizz (almost national champion at the maths Olympics) working as a low level system engineer on the site, when he is offered an unusual summer job by an attractive older girl, Natsuki (Nanami Sakuraba): to come home with her for the holidays. When he arrives at her home, he finds that he is to pretend to be her boyfriend for the duration of the trip, to please Natsuki’s ailing grandmother (Sumiko Fuji). Soon Natsuki’s whole family has arrived at the house, including the suspicious Wabisuke (Ayumu Saito) who left years before for America. While Kenji struggles to maintain his cover and befriend the numerous aunts, uncles and cousins, OZ is attacked. This act of cyber-terrorism has far-reaching consequences as industry computers go haywire and satellites are set on a collision course for earth. Kenji and the family around him must work together to prevent a global catastrophe.
Directed by Mamoru Hosoda from a screenplay by Satoko Okudera (the two also worked together on “The Girl Who Leapt Through Time”, “Summer Wars” is an exciting blend of family drama and technological thriller, moving from scenes of the family at dinner to the virtual world of OZ, where avatars such as the semi-legendary King Kazuma, do battle. There is a lot of heart and comedy in the film, derived from situation and character rather than cheap gags, that makes you feel a strong connection with Natsuki’s family. Kenji is also a fun protagonist, completely out of his depth in social situations, but extremely competent with maths and computers. It is impressive to see such a large family portrayed and while we are not given much information about the members, the group scenes give a sense of the chaos of such gatherings, with them speaking over each other and numerous things going on around the table. The story throws in a lot of elements, and with this cast of characters it’s hard to get bored. OZ is an interesting portrayal of an online space, a sparse clean look populated by a variety of different avatars, although the actual workings of it are somewhat fantastical. The animation overall is excellent, with expressive character design and a detailed world. Akihiko Matsumoto’s score is entertaining, with a traditional countryside feel to the rural family home shifting to distinct digitalised tune for the online world.
“Summer Wars” offers an interesting take on the idea of a metaverse, a secondary online world which mimics and has become an integral part of human society. It points out the danger of putting everything in one space like this, with even the police and fire service working through the OZ system. The film’s central message concerns communication both online and offline, drawing a comparison between the online characters who can communicate in every language on the planet, and the more traditional family gathering. The primary importance of communication to human relations is a theme that the film drives home. The grandmother is able to rally numerous people to their cause through family and acquaintances, using the phone; while Natsuki is later supported by a large online community. The technology is simply a conduit for human connection, and should not be seen as a replacement for it. The central village being an AI also speaks to this idea that humanity must always remember themselves and what is important, rather than allowing technology to change our attitudes towards one another. If there is one complaint about the film it is that Kenji and Natsuki’s relationship is not really touched on much throughout, but there is so much going on that it is hardly surprising. An entertaining film that brings up a lot of ideas about how humans will relate to each other in online spaces and a warning not to forget that it is communication that builds strong societies.