yakan ghost, oyama mahiro, oyama mihari, onii-chan wa oshimai!, ore no imouto ga konna ni kawaii wake ga nai, commentary, highres, 2girls, ahoge, bare arms, bare legs, bare shoulders, barefoot, between legs, black hair, blush, brown eyes, can't be this cute, collarbone, frown, grey hair, hair ornament, hairclip, hand between legs, long hair, looking at viewer, midriff, multiple girls, navel, parody, peeking out, siblings, simple background, sisters, sitting, star (symbol), strap slip, title parody, twintails, v arms, wariza, white background