From what I can glean through google translate, this character is named 中澤 佳織 (Nakazawa Kaori), and is the original character of the pixiv user who posted it, 中澤チャイジン (Nakazawa Chaijin). However, like kaiser (myeonggihusband), most or all posts of her seem to be instances of Chaijin commissioning various artists to draw her. Sometimes he posts them to his pixiv page, sometimes the original artist posts them to theirs.

The commentary identifies the artist for these posts to be hao guangze yu