Bessatsu Cobalt

Japanese: 別冊Cobalt

Size: A5
Cost: 680 yen
Circulation: 1987 - ?

Publisher: Shueisha

Info:

Light novel magazine for maidens. 5 issues were released between 1987 and April 20th, 1989. Two more issues were released on June 18th, 2007 and April 18th, 2008.