est. Rough estimate based on volume count, reprints and magazine — not an official figure
Overview
Kenji Koiso is a high school student with a crush on a kendo club beauty, Natsuki Shinohara, and a knack for mathematics. His aptitude with numbers earns him a part-time working maintenance on the global virtual reality world, OZ. One day, right before summer vacation, Natsuki asks Kenji to do her a favor -accompany her to her great-grandmother's 90th birthday celebration deep in the Japanese countryside. As Kenji tries to find his footing amongst the boisterous and tightly-knit Jinnouchi clan, receives a mysterious email with a long code and the message: "Solve me." Little does Kenji know what solving that code could lead to... (Source: Kodansha USA)
Source: AniList
External databases: MADB · AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections
Volumes
角川コミックス・エース First edition
6vols · 2009-08〜2010-10
| # | Release | ISBN | Buy | Price | Pages |
|---|---|---|---|---|---|
| Vol. 1 | 2009-08 | 9784047152960 | Rakuten · Amazon PR | 181 | |
| Vol. 1 | 2010-03 | 9784047153981 | Rakuten · Amazon PR | 144 | |
| Vol. 1 | 2010-07 | 9784047154803 | Rakuten · Amazon PR | 157 | |
| Vol. 2 | 2010-02 | 9784047153776 | Rakuten · Amazon PR | 190 | |
| Vol. 2 | 2010-10 | 9784047155053 | Rakuten · Amazon PR | 143 | |
| Vol. 3 | 2010-07 | 9784047154742 | Rakuten · Amazon PR | 194 |
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