Summer Wars poster

Summer Wars( 2009)

TV-MAAnimationScience Fiction
74%
User
Score

Always protect your network.

Overview

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.

    Top Billed Cast

    1. cast image

      Ryunosuke Kamiki

      Kenji Koiso (voice)

    2. cast image

      Hitomi Miyauchi

      Natsuki Shinohara (voice)

    3. cast image

      Mitsuki Tanimura

      Kazuma Ikezawa (voice)

    4. cast image

      Sumiko Fuji

      Sakae Jinnouchi (voice)

    5. cast image

      Ayumu Saito

      Wabisuke Jinnouchi (voice)

    6. cast image

      Takahiro Yokokawa

      Takashi Sakuma (voice)

    7. cast image

      Kiyomi Tanigawa

      Yukiko Shinohara (voice)

    8. cast image

      Mutsumi Sasaki

      Kazuo Shinohara (voice)

    9. cast image

      Mieko Nobusawa

      Mariko Jinnouchi (voice)

    10. cast image

      Takuya Kirimoto

      Riichi Jinnouchi (voice)

    11. cast image

      Sakiko Tamagawa

      Rika Jinnouchi (voice)

    12. cast image

      Ichiro Nagai

      Mansuke Jinnouchi (voice)

    13. cast image

      Takashi Kobayashi

      Tasuke Jinnouchi (voice)

    14. cast image

      Yutaka Shimizu

      Shota Jinnouchi (voice)

    15. cast image

      Kaori Yamagata

      Naomi Miwa (voice)

    16. cast image

      Tagame Tamura

      Kiyomi Ikezawa (voice)

    17. cast image

      Tadashi Nakamura

      Mansaku Jinnouchi (voice)

    18. cast image

      Yoji Tanaka

      Yorihiko Jinnouchi (voice)

    19. cast image

      Hashiya Nakamura

      Kunihiko Jinnouchi (voice)

    20. cast image

      Mitsutaka Itakura

      Katsuhiko Jinnouchi (voice)

    21. cast image

      Eiko Kanazawa

      Noriko Jinnouchi (voice)

    22. cast image

      Chigusa Takaku

      Nana Jinnouchi (voice)

    23. cast image

      Riisa Naka

      Yumi Jinnouchi (voice)

    24. cast image

      Naoto Adachi

      Ryohei Jinnouchi (voice)

    25. cast image

      Rikito Ota

      Yuhei Jinnouchi (voice)

    26. cast image

      Yuki Imai

      Shingo Jinnouchi (voice)

    27. cast image

      Sumire Morohoshi

      Mao Jinnouchi (voice)

    28. cast image

      Hinano Minagawa

      Kana Jinnouchi (voice)

    Social

    Review 1Discussion

    A review by CinemaSerf

    7
    Written by CinemaSerf on Wed Aug 06 2025
    It’s really quite apposite to watch this film at a time when governments across the world are merrily acquiescing to the demands of global tech to facilitate the rampant advance of AI. This story quite cleverly illustrates just how easily a collection of “Will Hunting” types can be used to crack even the most complex (2,000 digit) numeric code and allow nefarious access to a global network which manages just about everything we do - from using our phones to firing a nuclear missile. It’s bright spark - but maybe just a touch inept - “Kenji” who has accepted a task that is definitely not what he...

    Media

    Videos 2Backdrops 24Posters 36

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    Facts

    Status

    Released

    Original Language

    English

    Budget

    -

    Revenue

    18434328.00

    Keywords

    • card game
    • artificial intelligence (a.i.)
    • computer
    • hacker
    • virtual reality
    • family holiday
    • adult animation
    • anime