Youko Imari (伊万里 曜子) - Ruri Rocks (Ruri no Houseki) (瑠璃の宝石)

youko imari, short hair, brown hair, brown eyes, blue hair, multicolored hair, glasses, two-tone hair, semi-rimless eyewear, black-framed eyewear, under-rim eyewear, mature female, large breasts, anime screencap