imamura ryou, oyama mahiro, onii-chan wa oshimai!, official art, 1girl, ahoge, anime coloring, blush, brown eyes, collared shirt, full body, grey jacket, grey socks, hair between eyes, huge ahoge, jacket, loafers, long hair, long sleeves, looking at viewer, loose clothes, neck ribbon, open mouth, outstretched arm, oversized clothes, pink hair, pleated skirt, red ribbon, ribbon, shirt, shoes, sidelocks, simple background, skirt, sleeves past fingers, sleeves past wrists, smile, socks, solo, standing, tareme, transparent background, white shirt