Summer Wars
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Summer Wars

Alternative Titles

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


Type: Manga
Volumes: 3
Chapters: 13
Status: Finished
Published: Jul 4, 2009 to May 1, 2010
Genres: Comedy Comedy, Romance Romance, Sci-Fi Sci-Fi
Theme: Strategy Game Strategy Game
Demographic: Seinen Seinen
Serialization: Young Ace
Authors: Sugimoto, Iqura (Art), Hosoda, Mamoru (Story)


Score: 7.641 (scored by 39243,924 users)
1 indicates a weighted score.
Ranked: #20422
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #2410
Members: 8,573
Favorites: 78


Ranked #2042Popularity #2410Members 8,573
Add to My List
Volumes: /3
Chapters: /13


The virtual world of OZ has taken Japan by storm. Constructing an avatar in this real-world simulation grants users access to a wide range of features—from playing games to processing legal documents. Due to its overall convenience, OZ's popularity has skyrocketed since its inception and has been deemed the world's greatest communication tool.

Introverted OZ moderator Kenji Koiso had decided to devote his summer vacation to overseeing the system's maintenance. However, he changes his mind after being invited to accompany fellow student Natsuki Shinohara to her family's residence, where the Jinnouchi clan is gathering for the impending 90th birthday celebration of her great-grandmother.

Upon their arrival, Natsuki introduces Kenji as her fiancé, which comes as a shock to both himself and her great-grandmother. While struggling to keep up with the actions of his crush, he receives an anonymous text. Enticed by the complexity of its encryption, he decodes the message and sends a response—unknowingly bringing about a great catastrophe for OZ that will have dire consequences.

[Written by MAL Rewrite]


Summer Wars was published in English by Vertical Inc. in 2 volumes from October 22 to December 17, 2013. It was also published in Brazilian Portuguese by Jbc from February 2011 to April 2011. It has been licensed in Polish by Waneko.



Feb 18, 2016
Okay, so the other reviewer has rightly pointed out that the premise of this particular manga is patently absurd. So, if you can't suspend your disbelief long enough to buy that a high school kid can encrypt code with a pencil and paper or that a virtual reality program could blow up the world, then you shouldn't be reading this manga. Please, go read something else.

For those of you who are left, you will find an enjoyable, short story. There is a nice little romance here and an absurd plot about AI. But the core of this manga, the reason to ...
Jun 3, 2011
Mixed Feelings
Preliminary (9/13 eps)
This is the first manga that I have felt compelled to write a review of. Some minor spoilers to follow.

First of all, a warning to everyone, the description that MAL provides is very misleading. The so called "parallel dimension" is actually a computer world.

The art is decent, I had no complaints about it, though it wasn't spectacular.

The characters however, really ruined it for me. To be quite frank, they were stupid and unbelievable. There was a lack of communication between all members of Natsuki's family, leading to the collapse of a huge computer server and thus eminent nuclear war, because one family member took ...

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Recent Forum Discussion

Poll: Summer Wars Chapter 13 Discussion
HatchetGirl - Nov 17, 2011
3 repliesby rahul93k »»
Feb 21, 2021 9:55 PM
Poll: Summer Wars Chapter 11 Discussion
HatchetGirl - Nov 17, 2011
1 repliesby rahul93k »»
Feb 21, 2021 9:45 PM
Poll: Summer Wars Chapter 6 Discussion
HatchetGirl - Nov 17, 2011
1 repliesby rahul93k »»
Feb 21, 2021 9:15 PM
Poll: Summer Wars Chapter 4 Discussion
HatchetGirl - Nov 17, 2011
1 repliesby rahul93k »»
Feb 21, 2021 9:05 PM
Poll: Summer Wars Chapter 10 Discussion
HatchetGirl - Nov 17, 2011
0 repliesby HatchetGirl »»
Nov 17, 2011 11:02 PM