| title | ISBN-13 | year of publication |
|---|---|---|
| Keiji Vol.1 | 978-2-203-00457-3 | 2007 |
| Keiji Vol.2 | 978-2-203-00661-4 | 2007 |
| Keiji Vol.3 | 978-2-203-00666-9 | 2007 |
| Keiji Vol.4 | 978-2-203-00810-6 | 2007 |
| Keiji Vol.5 | 978-2-203-01084-0 | 2007 |
| Keiji Vol.6 | 978-2-203-01299-8 | 2008 |
| Keiji Vol.7 | 978-2-203-01308-7 | 2008 |
| Keiji Vol.8 | 978-2-203-01521-0 | 2008 |
| Keiji Vol.9 | 978-2-203-01522-7 | 2008 |
| Keiji Vol.10 | 978-2-203-01523-4 | 2008 |
| Keiji Vol.11 | 978-2-203-01524-1 | 2008 |
| Keiji Vol.12 | 978-2-203-01686-6 | 2009 |
| Keiji Vol.13 | 978-2-203-01992-8 | 2009 |
| Keiji Vol.14 | 978-2-203-01993-5 | 2009 |
| Keiji Vol.15 | 978-2-203-01994-2 | 2010 |
| Keiji Vol.16 | 978-2-203-01995-9 | 2010 |
| Keiji Vol.17 | 978-2-203-01996-6 | 2010 |
| Keiji Vol.18 | 978-2-203-01997-3 | 2010 |