okuda yousuke, sumire (kunoichi tsubaki no mune no uchi), kunoichi tsubaki no mune no uchi, official art, 1girl, anime coloring, black shirt, black thighhighs, blush, breasts, closed mouth, full body, glasses, hand up, holding, holding notebook, holding pen, japanese clothes, kimono, long hair, long sleeves, looking at viewer, low ponytail, ninja, notebook, obi, parted bangs, pen, ponytail, purple kimono, sash, semi-rimless eyewear, shirt, short kimono, simple background, sleeveless, sleeveless kimono, small breasts, solo, standing, tachi-e, thighhighs, transparent background, tsurime, turtleneck, turtleneck shirt, under-rim eyewear, v-shaped eyebrows, wedge heels, white-framed eyewear