[Muramasa Mikado(村正みかど)] The After School Seven - Gekan (放課後セブン 下巻)[2002-07-15]
http://rapidshare.com/files/87958069...7-15_.zip.html
The series consisting of 2 volumes, the idea is similar to that of Yu-Gi-Oh!, or simply a strip poker with magic involved.
Murasama Mikado only released 3 mangas, from 1999 to 2002. I am not sure if this mangaka is now under the name of Bureido (武礼堂), their characters are really similar, even in Bureido's website there is a link to Murasama Mikado's works. Otherwise I can only think that Bureido has based it's works upon motivation from those of Murasama's.