http://doujinshi.mugimugi.org/book/166895/%E4%BA%BA%E5%A6%BB%E3%83%87%E3%83%A9%E3%83%83%E3%82%AF%E3%82%B9/

But mugi has wrong information, it's an anthology ( Tsukasa Comics Special Anthology Series Volume 14 ) and Miyabi Tsuzuru is just one of the contributors - author of the first story.