imamura ryou, oyama mahiro, onii-chan wa oshimai!, official art, 1girl, ahoge, anime coloring, barefoot, blue pants, blush, brown eyes, full body, hair between eyes, huge ahoge, long hair, looking at viewer, loose clothes, open mouth, outstretched arm, oversized clothes, pants, pink hair, shirt, short sleeves, sidelocks, simple background, smile, solo, standing, t-shirt, tareme, transparent background, white shirt