Mizuki Yukino seems to have only been in 4 JAVs, but I did like her. Not an obvious beauty like Cocomi Sakura, but she does have a good body, and was a solid performer. She's a mix of An Nanba, and Maria Ozawa.
http://mvg.jp/works/-/detail/=/cid=mvbd054/
http://mvg.jp/works/-/detail/=/cid=mvbd054/