| title | ISBN-13 | year of publication |
|---|---|---|
| 廃墟探訪 haikyotambou/ | 978-4-576-02192-8 | 2002 |
| 廃墟本 The Ruins Book haikyobon/ | 978-4-8130-2016-5 | 2005 |
| 廃墟本3 ~The Ruins Book3~ haikyobon/ | 978-4-8130-2096-7 | 2009 |
| 廃墟本4 ~THE RUINS BOOK4~ haikyobon/ | 978-4-8130-2146-9 | 2012 |
| 廃墟本〈2〉 haikyobon/ | 978-4-8130-2054-7 | 2007 |