koshou shichimi, yotsuba (sister princess), sister princess, 00s, 1girl, :o, black ribbon, black shoes, black socks, book, brown eyes, brown hair, convenient leg, copyright name, female focus, full body, green background, hair ribbon, halftone, halftone background, holding, index finger raised, kneehighs, knees together feet apart, knees up, loafers, looking at viewer, magnifying glass, necktie, open book, pigeon-toed, plaid clothes, plaid skirt, pleated skirt, ribbon, shoes, sitting, skirt, sleeves rolled up, socks, solo, two side up, wing collar