Yoko Matsushita, the artist for Yami no Matsuei, was born June 23rd.  She has a few other works besides Yami no Matsuei, but none of them are translated (to my knowledge) except for Fairy Tale (found in volume one of Yami no Matsuei).  Another of her stories can be found in the Yami no Matsuei Character Book, although I don't know its title, and I believe that you can find yet another in the Yami no Matsuei Character Sketchbook.  Her current work is (obviously ^_^;) Yami no Matsuei. ^-^