Summer Wars

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Alternative Titles

Japanese: サマーウォーズ
English: Summer Wars
More titles


Type: Movie
Episodes: 1
Status: Finished Airing
Aired: Aug 1, 2009
Licensors: Funimation
Studios: Madhouse
Source: Original
Genres: Award WinningAward Winning, ComedyComedy, Sci-FiSci-Fi
Duration: 1 hr. 54 min.
Rating: PG-13 - Teens 13 or older


Score: 8.021 (scored by 294455294,455 users)
1 indicates a weighted score.
Ranked: #6042
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #426
Members: 519,881
Favorites: 3,951

Available At


Ranked #604Popularity #426Members 519,881
Add to My List
Episodes: /1


OZ, a virtual world connected to the internet, has become extremely popular worldwide as a spot for people to engage in a large variety of activities, such as playing sports or shopping, through avatars created and customized by the user. OZ also possesses a near impenetrable security due to its strong encryption, ensuring that any personal data transmitted through the networks will be kept safe in order to protect those who use it. Because of its convenient applications, the majority of society has become highly dependent on the simulated reality, even going as far as entrusting the system with bringing back the unmanned asteroid explorer, Arawashi.

Kenji Koiso is a 17-year-old math genius and part-time OZ moderator who is invited by his crush Natsuki Shinohara on a summer trip. But unbeknownst to him, this adventure requires him to act as her fiancé. Shortly after arriving at Natsuki's family's estate, which is preparing for her great-grandmother's 90th birthday, he receives a strange, coded message on his cell phone from an unknown sender who challenges him to solve it. Kenji is able to crack the code, but little does he know that his math expertise has just put Earth in great danger.

[Written by MAL Rewrite]


Director Hosoda Mamoru chose Ueda in Nagano Prefecture as the setting for Summer Wars because of its proximity to his birthplace. The film earned over 18 million USD in worldwide box offices and won the Japanese Academy Award for Animation of the Year in 2010. Hosoda became only the second Japanese director (after Miyazaki Hayao) to be nominated for an Annie Award for his work on Summer Wars.

Summer Wars was the first Japanese animated movie to be nominated for the Golden Leopard Award at the Locarno International Film Festival in Switzerland in 2009. The movie also won the Anaheim International Film Festival's Audience Award for Best Animated Feature and the Animation Division Grand Prize at the 13th Japan Media Arts Festival.

Related Anime

Characters & Voice Actors


Inoue, Shinichiro
Hosoda, Mamoru
Director, Original Creator, Screenplay


Opening Theme

Apple Music
Amazon Music
Youtube Music
No opening themes have been added to this title. Help improve our database by adding an opening theme here.

Ending Theme

"Bokura no Natsu no Yume" by Tatsuro Yamashita.


Apr 5, 2024
After having watched Wolf Children years ago, I'd never really thought about seeking out another Hosoda film. It was a nice little movie, but felt kinda safe and stiff in its approach. Today I decided why not try out Summer Wars, just give it a shot and see what happens! What I got was the exact opposite of my expectation. I was severely mistaken for thinking Hosoda was a cautious director, as this movie ended up being a flawed, yet completely unique experience.

For one, I respect the hell out of this movie. It delves into the philosophy of the family unit, importance of human interaction, ...
Dec 13, 2023
Mixed Feelings
Summer Wars was okay. I didn't love it, but it was a fun watch. The pacing of the film is weird. I think the film is best when you're getting to observe this family, and their love for their matriarch. Watching her step up to encourage everyone in positions of authority and leadership in her community during the phone call scene was a good character moment. That and her card game with Kenji, asking him to take care of her granddaughter are probably the best character moments in the film. However, Kenji's character never really steps up to meet Granny Jinnouchi's request. His role in ...
Dec 20, 2021
What is this anime?
It is about Facebook's new Metaverse they are trying to push out. Except in this world it has already happened and Facebook is called "OZ" instead. The whole world essentially runs on OZ. Then Oopsie Whoopsie! OZ has a virus! Many essential services get taken down and the MC is accidentally responsible for it all. We watch his journey as he defeats the virus and saves the world.

Did I enjoy it?
It sure is an odd film, with bright, abstract colors. And game (OZ) character designs that dare I say are unnecessarily creepy/unnerving. This film would work well if you needed something to ...

Interest Stacks

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Recent News

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Recent Forum Discussion

Poll: Summer Wars Discussion ( 1 2 3 4 5 ... Last Page )
zvuc - Aug 21, 2009
426 repliesby AshRayKay »»
Apr 13, 6:32 PM
Is it good?
kam1n0 - Nov 13, 2021
20 repliesby domine »»
Oct 31, 2022 5:46 PM
BeholdTheSkipper - Jan 5, 2022
1 repliesby GabyShimizu »»
Jan 5, 2022 12:05 PM
By Math Olympics, did they mean Kenji is a possible IMO qualifier?
Uji_Gintoki_Bowl - Aug 23, 2021
1 repliesby DuSK_iKaISeR »»
Aug 23, 2021 1:49 PM
Man it's been 11 year since it's realise
Sam_Emon - Apr 1, 2020
0 repliesby Sam_Emon »»
Apr 1, 2020 9:26 AM

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