donguri big, oyama mahiro, onii-chan wa oshimai!, commentary, highres, 1girl, ahoge, animal, animal on head, arms up, bare arms, bare legs, barefoot, black cat, brown eyes, cat, cat on head, flat chest, full body, hair between eyes, light blush, long hair, looking at viewer, on head, pink hair, red shorts, shirt, short sleeves, shorts, simple background, solo, standing, white background, white shirt