imamura ryou, oyama mihari, onii-chan wa oshimai!, official art, 1girl, anime coloring, black hair, black skirt, blush, brown eyes, clenched hand, closed mouth, coat, collared shirt, full body, grey socks, hair between eyes, hair ornament, hair ribbon, hairclip, lab coat, long hair, long sleeves, looking at viewer, multicolored hair, open clothes, open coat, open hand, outstretched arm, pleated skirt, purple hair, red ribbon, red shirt, ribbon, shirt, simple background, skirt, socks, solo, standing, transparent background, two-tone hair, untucked shirt