#44 of 2D Dream Comics (old numbering system #69 on earlier prints, for the cause of the "chaos" visit here)
there is a low quality physical version probably made by a camera: /g/292681/a8142913e1/
the author used to be one of my favorite, it's a pity he now only make his work for "Keitai/carrier retailers" that is thru the Japanese mobile network, so it is quite a difficult to get his recent work from overseas.
info on mugi: http://doujinshi.mugimugi.org/book/9294/