Ranked #183

Summer Wars

Alternative Titles

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


Type: Movie
Episodes: 1
Status: Finished Airing
Aired: Aug 1, 2009
Studios: Madhouse
Source: Original
Genres: Comedy, Sci-Fi
Duration: 1 hr. 54 min.
Rating: PG-13 - Teens 13 or older


Score: 8.351 (scored by 113,459 users)
Ranked: #1832
Popularity: #162
Members: 177,650
Favorites: 2,046
1 indicates a weighted score. Please note that 'Not yet aired' titles are excluded.
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.


When timid eleventh-grader and math genius Kenji Koiso is asked by older student and secret crush Natsuki to come with her to her family's Nagano home for a summer job, he agrees without hesitation.

Natsuki's family, the Jinnouchi clan, dates back to the Muromachi era (1336 to 1573), and they've all come together to celebrate the 90th birthday of the spunky matriarch of the family, Sakae. That’s when Kenji discovers his "summer job" is to pretend to be Natsuki's fiance and dance with her at the birthday celebration.

As Kenji attempts to keep up with Natsuki's act around her family, he receives a strange math problem on his cell phone which, being a math genius, he can't resist solving. As it turns out, the solution to the mysterious equation causes Oz, the program that controls nearly every aspect of life to be hacked into, it's up to Kenji and his new "family" to stop the hacker before it's too late.

(Source: twitchfilm.net)


No background information has been added to this title. Help improve our database by adding background information here.

Promotional Videos

Related Anime

Characters & Voice Actors

Ikezawa, Kazuma
Ikezawa, Kazuma
Tanimura, Mitsuki
Tanimura, Mitsuki
Koiso, Kenji
Koiso, Kenji
Kamiki, Ryunosuke
Kamiki, Ryunosuke
Jinnouchi, Sakae
Jinnouchi, Sakae
Fuji, Sumiko
Fuji, Sumiko
Shinohara, Natsuki
Shinohara, Natsuki
Sakuraba, Nanami
Sakuraba, Nanami


Hosoda, Mamoru
Hosoda, Mamoru
Director, Screenplay, Original Creator
Yamashita, Tatsurou
Yamashita, Tatsurou
Theme Song Performance, Theme Song Lyrics
Sadamoto, Yoshiyuki
Sadamoto, Yoshiyuki
Character Design
Itou, Tomohiko
Itou, Tomohiko
Assistant Director

Opening Theme

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.

Write a review | More reviewsReviews

Nov 30, 2009
As far as family entertainment goes anime is rarely high on the agenda, especially given the numerous offerings from Disney, Dreamworks, and other such movie studios. Generally their features appeal to children and adults alike, and in order to compete with them Japanese animation studios have had to shake off their habitual approach and focus on making films that are more accessible to Western markets. The undisputed king of this is Miyazaki Hayao, however there have been several challengers to his throne, the latest being Hosoda Mamoru.

Now those of you who have watched the latest anime incarnation of Toki wo Kakeru Shoujo (The Girl who read more
I found this review Helpful
Jan 21, 2014
There is only one word that can sum up this entire movie. Family. The whole concept of this entire movie revolves around being a cooperative and strong family. What does the word family mean to you? A group of people who are of same blood? This movie will show you the true meaning of family, a group of people who may or may not be of blood relation, but truly support each other till the death. That is what a true family is.
One spoiler in this review.

Story: 9
In a world where everything is connected to OZ (Imagine the internet, read more
I found this review Helpful
Dec 20, 2010
Summer Wars is a perfect example of a story biting off more than it can chew.

The film opens with an introduction to ‘OZ’. An information network that controls and monitors electronic services all over the world: from shopping to competitive gaming to healthcare facilities. Think the current internet age, but even more extreme.

Then we’re introduced to Kenji, a math wiz who works as a moderator for Oz and has a crush on a girl named Natsuki. A few moments later we’re introduced to this crush of his who begs him to come with her to visit her family’s summer home. Thus kicking off the read more
I found this review Helpful
Feb 27, 2011
As one of the directors responsible for making Digimon: The Movie happen, I guess it makes sense for Mamoru Hosoda (also did The Girl Who Leapt Through Time) to infuse elements of his past work into future projects. Such is the case for Summer Wars, his latest and quite possibly his most ambitious film to date. Even if you’re not a fan of anime, you’ll find something to like in this sci-fi/comedy/romance spectacle that is both awfully heartwarming and very pleasing to watch.

Kenji Koiso is a high school student/math genius who works part-time with his best friend, Takashi Sakuma as moderators for the massive, widely read more
I found this review Helpful


Anime: Digimon Adventure: Bokura no War Game!
They both deal with people trying to save the world after a threat appears on the net. They also share the same director. 
reportRecommended by Enna
Anime: Toki wo Kakeru Shoujo
good drawing/animation, unique story, similar main girl character 
reportRecommended by zefiriss
Anime: Higashi no Eden
If you like stories about big networks through mobile phones and the net, you should watch these two. 
reportRecommended by johnisnothisdate
Anime: Gatchaman Crowds
The high tech community in both of these beautifully animated shows remind me of one another. The cell phone based social networking center is an all new way to communicate with people and eliminate modern day necessities. Both shows are very futuristic in a sense.  
reportRecommended by Nikoru-san
Anime: Tsuritama
Tsuritama and Summer Wars both have colorful, vibrant art styles and animation. Both also focus on bonds between characters, though Tsuritama deals with friendship while Summer Wars deals with family bonds. The suspense in both has the same feel to it, and both have to do with saving the world. The tone, atmosphere, and mood are also very similar in both.  
reportRecommended by laceknight
Anime: Kyousou Giga
In both anime most of the story takes place in a virtual world. With a lot's of rainbow colors, so the artwork is almost the same. The only problem is that Kyousougiga is a littel short. 
reportRecommended by ElemenT

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Recent Forum Discussion

I wasted 2 hours of my life watching this movie. It sucked
masongr - Aug 9, 2014
17 replies by rsc-pl »»
Jan 7, 4:58 AM
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