東立出版社
The series licensed for an English-language release in North America by Broccoli Books. However Broccoli International USA closed down at the end of 2008 and stopped all printing in progress and have halted release of new works. As of October 2007, the company has published four volumes of the series. The series is also licensed for regional language releases in German by Carlsen Comics and in Chinese by Tong Li Publishing.