JAPANESE VERSION
Volume 1
+ release date: 2-16-2001
+ publisher: Kodansha
+ ISBN4-06-336329-5
+ normal version: ¥505
+ limited version: ¥1200
+ limited benefit: Mouse Pad
+ chapters: 1-12
+ 180 pages
Volume 2
+ release date: 6-27-2001
+ publisher: Kodansha
+ ISBN4-06-336329-5
+ normal version: ¥505
+ limited version: ¥1200
+ limited benefit: Portable Strap
+ chapters: 13-24
+ 176 pages
Volume 3
+ release date: 9-28-2001
+ publisher: Kodansha
+ ISBN4-06-336332-5
+ normal version: ¥505
+ limited version: ¥980
+ limited benefit: Postcard Holder
+ chapters: 25-36
+ 178 pages
Volume 4
+ release date: 12-26-2001
+ publisher: Kodansha
+ ISBN4-06-336344-9
+ normal version: ¥505
+ limited version: ¥1300
+ limited benefit: Planner
+ chapters: 37-48
+ 178 pages
Volume 5
+ release date: 4-26-2002
+ publisher: Kodansha
+ ISBN4-06-336344-9
+ normal version: ¥505
+ limited version: ¥1200
+ limited benefit: Puzzle
+ chapters: 49-60
+ 176 pages
Volume 6
+ release date: 7-26-2002
+ publisher: Kodansha
+ ISBN4-06-362014-X
+ normal version: ¥514
+ limited version: ¥2200
+ limited benefit: Phonecard
+ chapters: 61-72
+ 176 pages
Volume 7
+ release date: 9-27-2002
+ publisher: Kodansha
+ ISBN4-06-334599-8
+ normal version: ¥514
+ limited version: ¥2500
+ limited benefit: Figure
+ chapters: 73-81
+ 176 pages
Volume 8
+ release date: 11-29-2002
+ publisher: Kodansha
+ ISBN4-06-362019-0
+ normal version: ¥514
+ limited version: ¥1600
+ limited benefit: Box and Mousepad
+ chapters: 82-88
+ 132 pages
ENGLISH VERSION
Graphic Novel 1
+ release date: 4.23.2002
+ publisher: TokyoPop
+ ISBN: 1931514925
+ price: $9.99
+ chapters: 1-12
+ pages: 192
Graphic Novel 2
+ release date: 7.23.2002
+ publisher: TokyoPop
+ ISBN: 1591820057
+ price: $9.99
+ chapters: 13-24
+ pages: 184
Graphic Novel 3
+ release date: 10.27.2002
+ publisher: TokyoPop
+ ISBN: 1591820065
+ price: $9.99
+ chapters: 25-36
+ pages: 184
Graphic Novel 4
+ release date: 02.11.2003
+ publisher: TokyoPop
+ ISBN: 1591820073
+ price: $9.99
+ chapters: 37-48
+ pages: 192
Graphic Novel 5
+ release date: 04.15.2003
+ publisher: TokyoPop
+ ISBN: 1591821533
+ price: $9.99
+ chapters: 49-60
+ pages: 200
Graphic Novel 6
+ release date: 06.10.2003
+ publisher: TokyoPop
+ ISBN: 1591822572
+ price: $9.99
+ chapters: 61-72
+ pages: 192
Graphic Novel 7
+ release date: 08.05.2003
+ publisher: TokyoPop
+ ISBN: 1591822580
+ price: $9.99
+ chapters: 73-81
+ pages: 192
Graphic Novel 8
+ release date: 10.07.2003
+ publisher: TokyoPop
+ ISBN: 1591824095
+ price: $9.99
+ chapters: 82-88
+ pages: 128
BILINGUAL VERSION
Bilingual Comic 01
+ publisher: Kodansha
+ ISBN4-7700-2959-4
+ price: ¥950
+ chapters: 1-12
+ pages: 192
Bilingual Comic 02
+ publisher: Kodansha
+ ISBN4-7700-2960-8
+ price: ¥950
+ chapters: 13-24
+ pages: 192