Kazami Yuuka as she appeared in the PC-98 Touhou games (either with pants in place of her skirt, or a pink nightgown and nightcap), as well as her winged cameo appearance in the Seihou series (Kioh Gyoku). She has long green hair in all three appearances and also green eyes (instead of red) in the first two.
Pixiv tag: 旧作幽香. See also 東方旧作 for PC-98 Touhou in general and 宵闇小町 ("Twilight Beauty") for her Seihou appearance.
