Volumes
| English | Japanese | |
|---|---|---|
| Volume 1 | 13th August 2003 | |
| Volume 2 | 3rd September 2003 | |
| Volume 3 | 12th November 2003 | |
| Volume 4 | 31st December 2003 | |
| Volume 5 | 3rd March 2004 | |
| Volume 6 | 5th May 2004 | |
| Volume 7 | 14 July 2004 | |
| Volume 8 | 31st August 2004 | |
| Volume 9 | 16th November 2004 | |
| Volume 10 | 18th January 2005 | |
| Volume 11 | 15th March 2005 | 24th October 2003 |
| Volume 12 | 17th May 2005 | 4th June 2004 |
| Volume 13 | 2nd August 2005 | 27th December 2004 |
| Volume 14 | 11th April 2006 | 27th June 2005 |
| Volume 15 | 12th December 2006 | 28th December 2005 |
| Volume 16 | 11th September 2007 | 26th July 2006 |
| Volume 17 | 11th March 2008 | 26th January 2007 |
| Volume 18 | 9th December 2008 | 30th July 2007 |
| Volume 19 | 9th June 2009 | 8th February 2008 |
| Volume 20 | 8th December 2009 | 19th May 2008 |
| Volume 21 | 13th April 2010 | 29th October 2008 |
| Volume 22 | 12th April 2011 | 26th February 2009 |
| Volume 23 | 10th April 2012 | 30th September 2009 |
| Volume 24 | 13th November 2012 | 9th April 2010 |
| Volume 25 | 9th April 2013 | 7th October 2010 |
| Volume 26 | 13th Aug 2013 | 4th March 2011 |
| Volume 27 | 14th Jan 2014 | 11th October 2011 |