Summer WarsOverviewKenji Koiso is a young student at Kuonji High School with a gift for mathematics and a part-time Gamemaster#Gamemasters in online games in the massive computer-simulated virtual reality world OZ along with his friend Takashi Sakuma.Release dateAugust 1, 2009URL slugsummer-warsGenresAnimationArtworkPosterBackgroundNo imageIconNo imageBannerCast & crewCastMitsuki Tanimura — Kazuma IkezawaHitomi Miyauchi — Natsuki ShinoharaRiisa Naka — Yûmi Jin'nôchiRyuunosuke Kamiki — Kenji KoisoDirectorsMamoru HosodaCrewSeiji Okuda — Producer
